Ive searched, and searched. Help

Old 11-08-2010, 06:39 PM
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Join Date: Nov 2010
Posts: 1
Default Ive searched, and searched. Help

Ok. My wife and I just bought a 00' 9-3 2.0t. Now when we got it, It wouldnt boost well maybe to 1-2psi.
Also when we first start it in the morning, It rev's up and down very very ruff. I ran codes this morning, Didnt have a pen to write them down tho. If I remember rite a 1604, And a Code that Said multipule miss fire.

Now it does this for about 2-3 minutes and then once it starts to warm up just comes rite out of it, and runs smooth.

As far as the boost. I did this
What it did by removing the bottom 2 hoses is it Made it come alive its now boosting a 1/4 way into the yellow. But studders when pressing the happy peddle. No matter if boost is 2/3rds into the green or in the yellow. And I have kept it this way because atleast the car can get out of its own way now.

I also Tried this, No differance-Left it plugged off

So, I know this post is confusing.
TO recap-
Ruff idle on start up, evens out after 3 minutes and runs smooth the rest of the day. Starts up smooth, Only does it after sitting a long period (Over night)
Low Boost intil I did the first link test and it went from little boost to 1/4 way in the yellow. But I am still getting "bucking" or "stuttering" maybe fuel cut?

What Could this be The BPC valve? DI? Maf? Or?

Im Lost, And need some guidence.

Thanks everyone.
AllanR is offline  

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