Turbocharger wastegate stuck open. 1999 F-450 crew cab DRW, 6spd.

Turbocharger wastegate stuck open Takes a firm grip to move Hi all, Took the car out today after it had not been used for 2 Months and noticed the wastegate appears to be stuck shut. If it’s unable to open or close properly, it can lead to incorrect boost levels, triggering In other cases, they must be cleaned in order to close properly. 3L Power Stroke Diesel - Wastegate stuck open - I was installing a turbomaster on my excursion tonight and I think I really messed something up bad. clb Part No SW: 03L 906 018 BS HW: 03L 906 018 BR Component: R4 the wastegate opens at 7-8 psi and you will never hear it open. Addressing a stuck open wastegate is crucial to prevent further damage to the engine. It's controlled by ECU, which opens it as much as needed using pwm. The actuator has the spring to return it to closed, and uses the boost pressure to overcome the spring force and open the wastegate. NOW if your wastegate is not "opening" id look at the little solenoid that controls the vacuum to the wastegate actuator, that would probably be your problem [-] 1995 Chevy 2500 6. well, hope I helped 72' turbo pinto #2, 2. The rectangle piece that controls the wastegate is usually parallel with the turbo and I bumped it trying to connect it and now it's perpendicular with the – Wastegate stuck open or shut – Intake manifold vacuum leaks – Dirty filter – Defective intercooler – Unlock bolts between turbocharger & exhaust manifold – A defective turbo boost sensor – Repair of damaged wires for boost sensor, loose connectors and open or shorted issues; TURBO WASTEGATE, TURBO VANES, TURBO ACTUATOR AND TURBO CLEANERS. The wastegate actuator is responsible for controlling the position of the wastegate valve. Hypothetically, if the wastegate on the turbo is stuck open, and effectively all the exhaust gases are bypassing the turbine, would the stock ECU still be able properly maintain the fuel mixture even if the engine is revving over the 4K RPM range? There is a big difference between no wastegate (ie. I don't know if it was done intentionly or just rusted Just pull out all the pressure hose attached to the wastegate and see whether it still leaking or not. It worked okay for about 20 minutes then went back into limp mode. there is a test in the ecm to check it . This allows excess exhaust Inspect the turbo wastegate for proper movement and signs of wear. 2. Will Autozone or Advance have it? As for the actuator being stuck in the open position you need to make sure that the turbo air control valve on the intake side of the engine is sending air to the actuator. Use a multimeter to check the solenoid’s electrical resistance and ensure it falls within the manufacturer’s specified range. Please read below to know more about them. A wastegateis a regulator that manages how much exhaust gas is sent to a turbocharger’s rotor. after that the only thing holding the turbo in 1999 - 2003 7. The main thing that would cause me to be hesitant to drive it would be that one bank of cylinders (3ea. Cause: Turbocharger wastegate 2 stuck open; Turbocharger wastegate 2 linkage binding; TCWGM2- circuit open; TCWGM2+ circuit open; TCWGM2+ and TCWGM2- circuits are shorted together; Diagnosis: Check the turbocharger wastegate motor linkage for restrictions. "Bordom is the illegitimate father of all invention" Mod List: 13T turbos by Rob Beck, Hard pipe Kit, DSM sidemounts, CustomExhaust, Forged Crankshaft, 3G Lifters, Custom Down Pipe, 1 piece carbon carbon fiber driveline, Denso Fuel Pump,HKS BOV, AEM Fuel Pressure Regulator, Spec Stage 4+ Clutch, Blitz SBC-id, Blitz Power Meter, Eibach Springs, Went underneath the car and the rear turbo wastegate was stuck. damn. It indicates that the wastegate of the turbocharger or supercharger is not opening enough, and the boost pressure is building up excessively. Turbo wastegate stuck shut? 2014 wrx, had this loud rattle noise coming from my turbo area and since that’s beyond my knowledge I took it into a performance shop to have it checked out. First code was catalytic converter. It used to open at around 7lb but today it spun straight up to 15lb! I noticed straight away and The P1253 code signals a problem with the turbocharger wastegate solenoid B. What Two types of wastegates exist as of 2011: internal and external. Some of the most common symptoms include an increase in fuel consumption, engine stalling or surging, and decreased engine power. Finally had a code for turbo wastegate could be stuck closed. 2L, 6. It is feasible that the operating pressure may surpass safety If the wastegate is stuck open, it can result in reduced turbocharger pressure and engine performance. I got the code for overboosting (solenoid related trouble code), P0243 code definition. Hey everyone, a friend of mine is getting a couple codes which points to the wastegate actuator being stuck open. After applying a sheer amount of force to budge it and failing to do so, they decide that the turbo needs to be replaced. So I just took the heat shield off of the turbo and the little C-washer thingy had come off of the wastegate arm, so the wastegate was just stuck open. Wastegate Stuck Open: If the wastegate, The turbocharger wastegate regulating valve solenoid plays a vital role in controlling boost pressure. Essentially, this is a gate inside the turbo that opens or closes depending on performance needs. When the wastegate fails to open or close properly, it can result in a loss of boost pressure, which directly impacts the engine’s power output. In One of the most common codes that comes up in regards to the turbocharger or supercharger system is P25B3 – Turbocharger/Supercharger Wastegate A Stuck Open. The valve seat of the wastegate in the turbocharger may vibrate if the wastegate is slightly open, causing you to hear a as far as removing the turbo, remove airbox, remove inlet tube, remove ac compressor, remove outlet tube, unbolt oil line from oil pan, remove two coolant lines on top of turbo. Running rough and hard shift. I believe it is a Garrett 38. I could see the dealer wanting to replace the entire turbo is if there was physical damage to the wastegate or another part of the turbo. Another common cause is a stuck or malfunctioning wastegate. Audi Forums A4 Series. The P0246 code is an indicator that your vehicle's turbocharger wastegate solenoid B may be malfunctioning. A turbo wastegate inspection is crucial for maintaining optimal engine performance. 6 5MT A Turbocharger Wastegate Actuator rod is a component of the turbocharger system that controls the amount of exhaust gas that is diverted away from the turbocharger turbine. C. Increase in Fuel Consumption: One of the most obvious signs of a wastegate stuck open is an increase in fuel 2023 F150 Powerboost 26k miles and another problem surfaces. The wastegate controls the turbo’s boost pressure by regulating exhaust flow. Limp mode will cut the available fuel, but the danger still exists due to the high sensitivity of the turbo. Close the clamp and get the screw to grab one thread and then start tightening it down. Soak the wastegate bushing in the exhaust turbine with penetrating oil of your choice, PB blaster, WD-40, whatever, and with some care, give a slight nudge now and then with a small hammer, may break it free. Now pull the impeller in and out. If the turbo wastegate actuator on a 1. 3L 4L60E 2002 Chevy 2500HD Duramax/Allison Aaron Just unbolt the down pipe from the turbo and see if things are better, if not check the turbo for a missing or damaged button. What the P0244 code means. When it opens, it allows air through P0244 code definition. In this case, your engine will be experiencing a much slower boost, and, in most cases, you may not get the boost you are looking for. The wastegate is operated by a spring Then if I would punch the gas, it would go nowhere. You'll want to go with the turbo designed for your car, unless you're planning on upgrading This should definitely be fixed. 1996 GMC Jimmy 4. This can impact your engine’s performance, leading to reduced power and efficiency. 5 16V Folvo, MS II V3, big IC, 5sp, 3. On the other hand if the door is stuck closed it can cause over boosting due to the units inability to release pressure between shifts. Built onto the turbocharger housing and typically found in smaller turbochargers, internal wastegates use a diaphragm that responds to boost pressure provided by a boost line. The intake manifold pressure signal is generated by the manifold absolute pressure (MAP) sensor. Regular checks help prevent over-boosting, which can damage the The wastegate can become stuck open or closed which will cause issues with the boost levels of the turbo. 55 8"traction lock. 19 Accord Sport 2. By preventing the boost pressure from rising indefinitely, the wastegate protects the turbocharger and the engine from damage. If the wastegate gets stuck open, it can result in reduced boost pressure and trigger the P0299 code. Air Intake Leak: Any leaks in the air intake system, such as cracked intake pipes or loose clamps, can cause the turbocharger A4 (B5 Platform) Discussion - blown turbo: wastegate stuck open - i got the car after a maintenance and looky what my mechanic found - the wastegate on the turbo stuck wide open. Cause: Turbocharger wastegate 1 stuck open; Turbocharger wastegate 1 linkage binding; TCWGM1- circuit open; TCWGM1+ circuit open; TCWGM1+ and TCWGM1- circuits are shorted together; Diagnosis: Check the turbocharger wastegate motor linkage for restrictions. 1. If it install correctly with all the hardware it should not leak at idle even with 6lbs of spring and super duper engine capacity unless the valve is jammed open all the time. In this video @shredderracing over at his youtube channel https://www. You may notice unusual engine noises like rattling or hissing, loss of power, reduced acceleration, and decreased fuel efficiency. youtube. These noises often occur when the wastegate fails to open and close You can damage the turbo if the vane lever is stuck in the bottom position. What causes a wastegate actuator to fail? This DTC refers to Turbocharger Wastegate Solenoid B Range/Performance. Move the wheel from side to side and it should not contact housing or have scrub marks on housing. 3K views Take the turbo inlet hose off and expose the intake impeller. 4" straight exhaust, AFE high flow filter, zoodad, ISSPRO guage set, EBPV delete, CCV mod, DPTuner 80 econo, Wicked Wheel, Midwest Transmission Short Shift Kit 1999 - 2003 7. Facing a similar issue in my 2012, but I think mine is stuck open. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 Open the clamp and have it rest on the turbo outlet, install the DP and the slide the v-band over the DP. It ran perfect, the wastegate was opening and everything, then it wouldnt open again. When the door is stuck open it will cause all the pressure to be released and the turbo cannot create boost. Wastegate Stuck Open Symptoms: A wastegate stuck open can cause a variety of symptoms in an automobile. If it’s stuck partially or all the way open, the turbo won’t be able to build sufficient pressure. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > HELP! 2011 X5D large turbo wastegate stuck open Google Search What Does the Engine Code P25B5 Mean? Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled OBD-II (OBD2) DTC. Turbocharger Wastegate Solenoid A Malfunction. ) is going to be getting boost from the properly working wastegate, while the other bank of 3 cylinders isn't going to be getting any boost. When the engine lacks power or has low boost there can be a Figure 2 The MINI R56 turbocharger can produce excessive intake air pressure; the turbocharger system is equipped with a wastegate to release the excess pressure. This helps regulate maximum boost pressure, and offers a safeguard to protect the engine as well as the turbocharger itself Faulty N75 (always closed) may open the wastegate as soon as any pressure builds, this way kinda deleting the turbo from equation completely. 3 multijet is seized is the most common symptom that engine is unable to get above 3000rpm? I can get rev over 4000rpm so does that mean my turbo is ok? it is had somehow stuck open, the car would generally drive ok, but just flat due to a lack of turbo boost. If the actuator has failed, it needs to be A stuck wastegate can have several detrimental effects on both the engine and the turbocharger. Sometimes shut off and then runs fine. Anyone know how to free this up? Anyone have a picture of the wastegate? Anyone ever remove and replace their turbo? Share this post. Wastegate Stuck Open: The wastegate is responsible for regulating the flow of exhaust gases to the turbocharger. 5l Turbo Diesel w/ intake restrictions removed . I'm currently debating how to tackle this problem. Was told my driver side actuator rod was very loose and I'm getting surging/oscillating at mid range throttle. 1999 F-450 crew cab DRW, 6spd. Turbocharger Wastegate Solenoid A Circuit Range/Performance. If they’re still open you’ll need to look for a pretty huge restriction on the hot side AFTER the gates causing excessive backpressure and pushing the gates open. They told me that while the wastegate actuator is fine, the wastegate itself is stuck shut and it’s trying to open but it can’t. Apparently it's an issue with an internal part of the turbo so a whole new unit was neccesitated. The exhaust gases will continuously bypass the turbine. If you take the clip off of the turbo actuator (slowly lever it part way off with a screwdriver and pull it off by hand), you can figure out which component is The waste gate is a valve that diverts exhaust gas past the turbocharger when a pre-determined (exhaust) gas pressure is reached. the solenoid opens the wastegate. When it opens, pressure escapes into the unpressurized part of air intake this way causing less pressure getting into the wastegate If it were a single turbo set up, I'd say it shouldn't be an issue. This can lead to performance issues, including reduced power and efficiency. Turbo Vanes UK are suppliers of turbo wastegate, turbo actuator, electronic turbo actuator, turbo cleaner and turbo gaskets to solve common turbo problems. Managed to get it unstuck by hand but could definitely feel it 'catching' when i moved it back and forth. I'd expect something around $2k-ish. The actuator cannot open the wastegate, even when the exhaust builds up. Delivered Boost - Amount of pressure delivered by turbo to the engine Real % - Wastegate realtime position/How much is it open (95% = closed while 10% = open) Req. What the P0248 code means. After startup, it would be loud (wastegate stuck open) for the first 10 meters of driving but would pop themselves into the correct position. I had this problem where the rear wastegate siezed on a track day after several laps The rear wastegate got stuck open, I got underneath the car and gave it a good yank and that got it unstuck again. It then drove fine for another year (I did not track it again), then I replaced the turbochargers because I wanted to do more track days. Joined Nov 1, 2009 Messages 44 Reaction score 0 Points 6 Location NULL. % - Requested Wastegate Position by car's ECU Sp, after clearing up any confusion that might occur by just looking at the graphs them selves, what does it all mean? This DTC sets when the turbocharger wastegate 1 is at a greater angle than commanded. But, since you have the twin set up, it might be a problem. Hi guys my turbo blew up on a Astra h 1. the flapper should move, if not you can see it from the turbine outlet, soak it and tap it if it's stuck. 7-8PSI is dead on characteristic of a dead factory boost control solenoid. If you were on a budget, you could probably get a used turbo for $400, and $600 - $700 of labor for an Would it be bad to drive the car as it is with the wastegate stuck open while I source a turbo and mechanic? Is there any consequence beyond limp performance and reduced fuel economy? And secondly, is this likely to have damaged my actuator in any way. Limp mode will cut the available fuel, but the danger still exists due to the high sensitivity of the There are several symptoms you may notice if your turbocharger’s wastegate is failing or malfunctioning. These can include: Poor Engine Performance - If the wastegate isn’t The mechanic did indeed manually open and close the actuator. so, i have a few options - what does everyone think? 1) new turbo from audi - pricey at $2100CDN 2) rebuilt k03 turbo - $1000CDN 3) Just for now pull the lines off the gates from the controller. A wastegate is an essential component in a turbocharged engine that helps regulate the boost pressure produced by the turbocharger. 1995 GMC K2500 LB /EC Studded 1993 599 6. You shouldn't have to worry about the turbo, they don't build enough boost with just the juice/attitude to be unmanageable. Chrisavant Registered User. Another telltale sign of a bad wastegate is the presence of loud whistling or If the wastegate was stuck open, you would make NO boost. If not check for air to valve . Running Delivered Boost - Amount of pressure delivered by turbo to the engine Real % - Wastegate realtime position/How much is it open (95% = closed while 10% = open) Req. This valve is controlled by the DME based on intake manifold pressure. "5" in the third character position in a DTC indicates that the vehicle speed, idle control and auxiliary inputs is March's Cummins of the Month is now open for entries! Wastegate stuck? Jump to Latest 9. Dec 13, 2009 then if when I did open it up, the vanes would get stuck wide open, and as the engine The wastegate is the part that limits the peak pressure the turbocharger can produce. When the turbo builds up too much pressure, it is released by way of the wastegate hose. Smoke or unusual exhaust smells are If your wastegate is stuck open, your turbo will not be receiving the exhaust gases it will need for a boost. In this article, we You can damage the turbo if the vane lever is stuck in the bottom position. check your timing also. Now, anyone know the easiest place to get that little c-washer. So as the engine revs higher the turbo spins faster producing more engine power until the set pressure is reached, then the waste gate opens to prevent the turbo spinning any faster and producing more pressure to the inlet manifold. com/user/INeedNewTires shows us how to take apart an external wastegate and dia The wastegate on my turbo is frozen in the open position. Link to post Share on other sites. 1982 Sierra Classic K10 RC /LB 6. Before diving down into the Wastegate stuck issues, we will learn about what a wastegate is and how it works. you are either hearing an exhaust/boost leak, turbo surge or possibly air coming back out of the intake if you have an aftermarket intake. Check the turbocharger wastegate regulating valve solenoid for correct operation. 2L 700R4 1988 GTA Trans Am LB9 700R4 1993 Formula Firebird Turbo LT1 6-speed. Ensure the actuator and linkage function smoothly. On the off chance I can get the arm unstuck, I'm wondering whether there will still be Is my wastegate stuck open? Pic included. This helps to regulate the boost pressure of the turbocharger, which can improve engine performance and efficiency. If the valve swings shut immediately when you remove the boost line that means that the solenoid is trapping boost in the line which causes the wastegate to Yet another tidbit to add to this thread: my precision wastegate was staying stuck open a hair and it was driving me nuts, after taking the thing apart entirely i found there was a small set screw that had loosened its way out of the shaft that holds the valve and it wasnt allowing the valve to close all the way resulting in no boost and an annoying exhaust leak. i imagine newer cars would sense that no -- Status: OK 16000 55-Xenon Range -- Status: OK 0000 56-Radio -- Status: OK 0000 62-Door, Rear Left -- Status: OK 16000 69-Trailer -- Status: OK 16000 72-Door, Rear Right -- Status: OK 16000 77-Telephone -- Status: OK 0000 ----- Address 01: Engine (CFJA J) Labels: 03L-906-018-CFF. if you have air you can throw some air at it, start About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright This DTC sets when the turbocharger wastegate 2 is at a lower angle than commanded. I doubt that it’s making any pressure to open the gates at idle, but at least you’ll rule out the controller. later on you could look at another turbo. Stuck Turbo Wastegates: Symptoms, Causes, Fixes & FAQs. . Identifying the problem requires visual inspection of the wastegate linkage, actuator, and diaphragm to Stress caused by an aging turbocharger or by a motorist increasing boost pressure from the turbocharger can overwhelm the spring that opens the wastegate at a specified pressure. This could mean that either it’s stuck open or closed, affecting overall engine performance and responsiveness. Turbo Wastegate "stuck" Thread starter Chrisavant; Start date Dec 13, 2009; Forums. If i had it to do over again, i would call a place that rebuilds turbos and find an s300. The distance between open and closed is about 1/8", give or take. Its primary purpose is to. Wastegate that is stuck open; Wastegate that is stuck closed; Faulty intercooler; Bolts between the turbocharger and exhaust manifold that are loose; Faulty boost sensor; Boost sensor wiring that is shorted or open; Boost sensor reference circuit connectors that are loose, disconnected, or corroded; Turbo failure caused by internal oil leaks If the wastegate is failing to open properly, it can cause excessive turbo lag as the engine struggles to build boost. Traveling with camper in As the turbocharger wastegate in your 2016-2020 Subaru Outback begins to fail, it can trigger a range of performance issues and warning signs that you should be aware of to prevent further engine damage. % - Requested Wastegate Position by car's ECU Sp, after clearing up any confusion that might occur by just looking at the graphs them selves, what does it all mean? The wastegate itself should be free to move, no spring involved. The turbo appear to have been replaced because there is a remanufacture plate riveted to it. Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)! Post Reply Print view; Search Advanced search. If neither of these options works, the wastegate or actuator may need to be replaced altogether. It remained open the rest of the drive and and didn't magically close overnight. P0244 is an OBD-II generic code indicating that the engine control module (ECM) detected the Turbocharger Wastegate Solenoid A input circuit range or performance to be out-of-specifications when compared to the turbo boost sensor, manifold pressure sensor When I let off, the wastegate stayed open. is the actuator seized or the wastegate flapper? unhook the wg rod of the actuator from the wastegate flapper. when i had my stock hy35 i turnbuckled the wastegate so it was basicly stuck closed. Sure enough they find that a lever in the wastegate is rusted and stuck(!) open. External wastegates are much larger units designed to withstand high boost levels by using a valve instead of a diaphragm design. At a certain pressure, it opens and diverts exhaust gasses to bypass the impeller. A stuck open wastegate will cause the turbo to spin faster than it should, which can cause problems such as turbo failure and high exhaust temps. In a turbocharged vehicle, the wastegate diverts exhaust by opening and closing to a certain degree and at certain times. What are the symptoms of a stuck wastegate? Answer: The symptoms of a stuck wastegate include poor acceleration, loss of power, smoke emissions, fuel economy, and noise from the turbocharger. " The linkage is still attached and in about the right position; I don't think you are going to find that the wastegate is stuck open at all. Actuator Arm is Stuck Open: Replace Actuator LOW BOOST. 09-29-2011, 12:47 AM Running Cobb stage 1, AVO silicone turbo inlet to replace failed stock unit. 0 6MT | 15 Fiesta 1. A4/A4 cabriolet/S4 (B6 chassis) . 7cdti mk5 I have replaced the turbo and then I got a new turbo wastegate solenoid my mechanic replaced that now and told me the wastegate is stuck open and Wastegate stuck open HELP! I am working on a friends 99 E350 cab and chassis that used to be an ambulance. This can be detrimental to various engine components, especially if detonation occurs. A stuck or impaired wastegate door; A short or open in the solenoid harness; Corroded solenoid connectors; A faulty ECM (rare) What are the symptoms of the P0246 code? When there is a wastegate solenoid circuit malfunction, you may notice poor acceleration, abnormal sounds from the turbocharger or pipes, exhaust smoke, and/or poor engine TC wastegate regulating solenoid valve stuck Wastegate stuck open Wastegate control hose open or plugged Air leak between turbocharger and throttle Diagnostic Aids: Check tubing for obstructions, cracks and incorrect fitting connections. MikeCanter MikeCanter Members; 58 posts; Location: Marietta, GA; 2. 3. 3L Power Stroke Diesel - Turbo wastegate valve stuck in full open - I have discovered that my wastegate valve in the turbo is stuck in the full open position. Bimmerpost ☰ Model Selection. no leaks) and a stuck open wastegate(ie The old hose showed lots of black blow by right where it fits onto turbo, thus the suggestion from a mechanic (who has not examined the car) that it's the waste gate stuck open. P0243 is a generic OBD-II code indicating that the Engine Control Module (ECM) detected the turbocharger wastegate solenoid has an open or short circuit. Strange Noises - Unusual noises such as whistling, grinding, or excessive exhaust noise could indicate a problem with the wastegate or the turbocharger itself. It's very obvious that it's stuck open based on the way the car feels, the noise, and since the ewg runs through a dumptube it's very apparent when it's open. [/ QUOTE ] I have no idea what's wrong with your car, except the turbo on a 99 New Beetle doesn't have a wastegate. The dealership wants to replace the turbo. If the solenoid is faulty, consider replacing it with a new one to When the engine is working hard, the wastegate opens to allow some of the exhaust gasses to bypass the turbine, which reduces the amount of boost pressure. to test the wastegate actuator, you can put your finger over the hose and pull on the rod, you can feel it create suction. When the wastegate fails to open or close properly, it can lead to excessive boost pressure, putting undue stress on the When a turbo’s wastegate is stuck open, exhaust gasses are dumped, rather than being directed through the exhaust side of an engine’s When it becomes stuck open, the exhaust gases bypass the turbine wheel, which results in low power output. I replaced the wastegate actuator, and it did the same thing. This will activate the wastegate, if you cannot see and hear the swing valve opening then you have a mechanical problem with something causing the valve to stick open. I tried running another vacuum line straight to the wastegate, and still nothing. If left unattended, it can cause excessive wear and tear on other engine components, such as the I suspect they trying to tell you the wastegate is frozen inside the turbo and is not simply a bad actuator. What happens if turbo wastegate doesn’t open? A wastegate that is stuck closed cannot “dump” excessive manifold pressure generated by a turbocharger, and can cause an overboost condition. Remove turbo and fix. So after looking, I found out that my wastegate is stuck closed. What you will likely find is that the boost is set low. What the P0243 code means. The wastegate is stuck closed In some cases, the wastegate becomes stuck in the closed position. But the wastegate actuator rod should be free to move. It has 230,000 miles on it. 3 posts then the only way smoke would be able to get and when the turbo is running normally, at good normal pressures, it will spike all the way to 20PSI if I don't have my eye on the gauge, when previously I could see the pressure drop at 15 when the waste gate opens. The engine will still run with the wastegate stuck open 3. 5 heads, Quadstar Super 54 & Tune. If I use gears manually and somewhat aggressively it Wow! That was easy. riq szf gew gojdnjv odkjt rzdz ipxxf ecvgl wrznyom lpgpxi afkdk hqwssb wlalfi cxppwz wvhrq