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Showing results for tags 'no boost'.
Found 4 results
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hey all this is my first post so I hope someone out there would be able to point me in the right direction to diagnose my fault in my XR-T I have an 04 mk11 and sometimes (oddly on the weekends) it will have a sudden loss in power and makes acceleration and taking off difficult, especially being manual. Iv pulled off my crossovers and checked to make sure that the throttle butterfly was operating when the accelerator pedel is depressed in different position. Found all to be okay, so I put it all together and took her for a spin under all coditions again and no matter where the throttle was it jus had NOTHING. so I kicked the throttle pedal in frustration and the proper throttle returned momentarily. I tried boosting it and it had no boost at all (felt like a laggy N/A) .. I parked the car in frustration again and I kicked the throttle pedal in neutral flat to the floor and strait back off and it reved to 2300ish RPM when the revs settled I did it again and it only went to 1100RPm... sometimes after driving for an extended period of time it will all return to normal and everything is okay. through the week.. drives well (aside from crap economy 300km to a full tank) and she idles fine. no shuuders, knocks, noises, misfires nothin. so I think that sums it all up.. im leaning towards my TPS on its way out? yet to test it or my actuator is sticking? once again yet to test it. checked for boost leaks, manifold leaks, (all vacuum leaks) cleaned the boost solonoid, throttle body is SPOTLESS, umm.. im still yet to get it tuned or speak to a tuner (ill go see spirrow) but just want to do my own diagnosis work before I go start spending hard earned cash on things that wont help me. iv also plugged a scanner on it to see what fault codes come up and after this issue it has an overboosting code in it. appreciate any help. thanks all! jared.
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Hey all, Having a boost issue with my BA (Cooler, 4 inch dump & exhaust, injectors, X4 with custom tune 297kw@14psi, currently running custom 10psi safe tune), 1st will boost to about 5psi the 0psi, 2nd will spool up then 0psi, currently nursing. No fault codes appearing, so far have checked/replaced, -piping, joiners & BOV vacuum lines (replaced the sh*t turbo intake & throttle body joiners & vac lines with silicones and T-bolts) -intake/exhaust & turbo manifold bolts (exhaust manifold bolts were loosish to my suprise) -wastegate solenoid to actuator & turbo lines. (solenoid maintenance at the same time) -wastegate for movement (not sticking) I am leaning towards a failing actuator diaphragm or spring because when I checked that the wastegate was moving it seemed that the spring tension was quite soft (checked the tension on a spare diesel turbo) in comparison. any input is greatly appreciated.
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Hi Guys, Just got in the car following an appointment and it feels like something holding it back. It takes for ever to accelerate and is developing no boost. The car idles fine, but take ages to build revs even in park and neutral , no farting or spluters. Any ideas or feedback welcomed
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Hey everyone, I just picked up an xr6t ute last night and was giving it a fair bit since I haven't owned a 300kw+ car before, at some point of the night I found out how to take traction control off and got on the brakes, once I clicked 2nd for a while I heard a pop but thought it was from the exhaust end, as of that stage I had lost most of my power, I was still able to cruise the car home doesn't idle bad or anything but its very gutless needless to say I've gone over all my cooler pipe clamps and made sure their secure, it does have 90% stock intercooler pipes, turbosmart bov and an aftermarket actuator, is there anything else one would recommend me going over before taking it to a garage ? - David
