2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

Wtf is going on?

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Old 11-12-2009, 05:49 PM
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Wtf is going on?

alright so my car is really quiet.
more quiet then stock
no power at all
stumbles all the time
getting 25 mpg
after about 3000 rpms it falls on its face
it idles perfect.
no skips

clogged cat?

my mods are
injen intake
gm stage 2
vibrant 3" catback
Old 11-12-2009, 06:16 PM
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Quite possibly a clogged cat
Old 11-12-2009, 06:29 PM
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if not what else could it be?
Old 11-12-2009, 06:52 PM
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Stumbling and no power over 3K could be moisture or oil on your MAF. I've had that before. But because of the other symptoms I would say clogged cat as well. Is your boost reading higher? (If you can get a reading because of the low rpms)
Old 11-12-2009, 07:43 PM
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i dont dare crank it over 3k it sounds like its going to come apart. but at 3k im at 12.5 psi

bump

Last edited by kburgess04; 11-12-2009 at 07:43 PM. Reason: Automerged Doublepost
Old 11-12-2009, 07:51 PM
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GM stage 2 tune? Probably a clogged cat, could be a MAF as well but I would lean toward the clogged cat.
Old 11-12-2009, 07:58 PM
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k thanks guys
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