Boost Problems...Opinions Please
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Joined: Apr 2007
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Boost Problems...Opinions Please
Today I went to WOT when the car started to shake above 15psi, then eventually goes into limp mode. I put on my leak tester and no leaks. I can only test to about 5psi before the intake adaptor blows off. I also did a preliminary check of the TBBand it looks OK. I removed both DVs and ensured that they were sealing. No codes.
What do you guys think? I think I will order the Samco TBB anyway. I already have a SamcoF tube too.
What do you guys think? I think I will order the Samco TBB anyway. I already have a SamcoF tube too.
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RE: Boost Problems...Opinions Please
OK, I just found a very small leak in the upper right (driver's side) intake hose. I don't know how this could cause the problem because it's on the low pressure side of the DV.
One other thing that could be related. I just put in Denso Iridiums a week ago. No problems initially, but now this. Just thought I would throw everything out there.
One other thing that could be related. I just put in Denso Iridiums a week ago. No problems initially, but now this. Just thought I would throw everything out there.
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RE: Boost Problems...Opinions Please
Good call 2K, I pulled the plugs and the Denso IK20s were gapped at .038. No wonder the spark was blowing out at high boost. I gapped them at .030 and it runs like a top. These plugs were supposed to be gapped at .032 according to their web site. Not sure what happened.
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RE: Boost Problems...Opinions Please
OK, it's still doing it. It just started today so the problem is intermittent. Although, I did get a cylinder 2 misfire code. Can this still be a boost leak? I called ECS and they said there's no way it could be a plug and I should check my coil packs or wiring. Today during WOT, I held it and let it buck for a couple of seconds and it went into limp mode and the CEL flashed for about 10 seconds then went out. I need to check to see if the same code registered or none at all since the light went out.
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RE: Boost Problems...Opinions Please
I'm think the vacuum leak I found initially is causing the misire due to unmeasured air causing a lean mixture. I ordered a Samco TBB and upper intake hoses to fix the leak. I'm not getting a very big response on this one. Maybe I should have put "pretty shiny rims" in the subject. Those threads seem to get hundreds of responses. Thanks for the response 2k.
1st Gear
Joined: Jan 2006
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RE: Boost Problems...Opinions Please
Man I feel your pain I have been having the similar problems the only thing i can tell you is run a vag-com post the codes and wait for the replies there are 3 or 4 people that have helped me in my persisting problem . so post the codes and they will come !
1st Gear
Joined: Oct 2007
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RE: Boost Problems...Opinions Please
it does sound like a misfire. I would switch the coil pack from cylinder 2, go make it miss and see if the misfire code switches to the other cylinder. Also you may look into the Ignition Control Modules... Though I don't know how to test them. Best of luck.
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Joined: Oct 2007
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RE: Boost Problems...Opinions Please
ORIGINAL: carhopper
OK, it's still doing it. It just started today so the problem is intermittent. Although, I did get a cylinder 2 misfire code. Can this still be a boost leak? I called ECS and they said there's no way it could be a plug and I should check my coil packs or wiring. Today during WOT, I held it and let it buck for a couple of seconds and it went into limp mode and the CEL flashed for about 10 seconds then went out. I need to check to see if the same code registered or none at all since the light went out.
OK, it's still doing it. It just started today so the problem is intermittent. Although, I did get a cylinder 2 misfire code. Can this still be a boost leak? I called ECS and they said there's no way it could be a plug and I should check my coil packs or wiring. Today during WOT, I held it and let it buck for a couple of seconds and it went into limp mode and the CEL flashed for about 10 seconds then went out. I need to check to see if the same code registered or none at all since the light went out.