Problems/Service/Maintenance Do you have problems with your new 2.0, 2.2, or 2.4L? What kind of service did you have done?

Boost Loss after car warms

Old May 7, 2007 | 01:48 AM
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Boost Loss after car warms

Well, I'll give you a little back story... Last Edmonton get together, I revved the engine to redline once.

Ever since then, The car, when warmed up, doesn't build any more than 20 KPA (3 lbs of boost.)

I have tried resetting the PCM by disconnecting the battery, and pulling the fuse, to no avail.

The car is running the GM stage II 3 inch pulley, with stock injectors and original tune,
and it will however, when first started after cooling off, pull hard to redline boosting 15 psi.

Any Ideas on probable cause? I don't have any way of checking for codes, but at the same time the check engine light should come on when a code is thrown anyways right? It hasn't.

I was passing the Idea around that it may be a clogged cat, but at the same time, there is no bad smell, and engine temps are nominal.

Thanks,

Sean
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Old May 7, 2007 | 06:56 PM
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31 hits and no replys.
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Old May 7, 2007 | 08:27 PM
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Free bump for you. Im stuck!
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Old May 7, 2007 | 11:48 PM
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Thanks!
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Old May 8, 2007 | 11:52 PM
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I'm Not sure what code it's throwing, but I did notice today that the CEL was staying on when the Ignition was turned on... I read in the manual that it means troubles with emissions, although I was under the impression that the CEL should stay on when the Engine is started and running as well...
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Old May 9, 2007 | 12:01 AM
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If the CEL stays on constantly when the ignition is on, then I am guessing it could have a "pending" code in the system. I know on mine, the CEL will go off after 30 seconds, maybe less or more. I never really paid attention.

I also just re-read your original post, dude, get some injectors/tune or ditch the pulley!!!!!!!!!!

Your motor is on the way to the cobalt death pile.

Last edited by SSdan; May 9, 2007 at 12:01 AM. Reason: Automerged Doublepost
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Old May 9, 2007 | 12:05 AM
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Originally Posted by damien
If the CEL stays on constantly when the ignition is on, then I am guessing it could have a "pending" code in the system. I know on mine, the CEL will go off after 30 seconds, maybe less or more. I never really paid attention.

I also just re-read your original post, dude, get some injectors/tune or ditch the pulley!!!!!!!!!!

Your motor is on the way to the cobalt death pile.
I've been trying, locally, to find Injectors... I'm not one for ordering over the internet.

The car up to this point has been fine, I don't beat on it at all, but you are right, it would definately help. I don't at this point want to go out and buy stage II though, here in Canada it's way too expensive.
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