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Rough acceleration on my 97 TSi AWD

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MarcVIII

15+ Year Contributor
103
0
Oct 23, 2004
Cleveland / Akron, Oh, Ohio
I just bought a 97 TSi AWD and have a small problem. Between idle and about 2200 RPMs the acceleration is very lagged (much more than other turbo cars I've dealt with). It feels rough and struggling. As soon as boost comes in everything cleans up and the car moves fine. It had a check engine light when I bought it, but when I disconnected the battery and put in a new air filter it went away. I also just changed the spark plugs (the old ones had definately seend better days) and it improved somewhat. I also changed the engine oil and plan on flushing the tranny (its an auto). I was going to fill the rear diff (if its low) too.

Any ideas to clean up the powerband there? I changed what I thought it needed and it has helped somewhat. As I'm new to the DSM community I was wondering if it has an ignition module (coil) or a cap and rotor (distributor / HEI). I really haven't taken a good look at the motor (I'm a motivated lazy guy) to know but I guessing that or wires is my problem. Any suggestions?
 
ya dsms well 2L dsms at least run off a coil... the 1.8L runs off a distriutor.

anyways, check youre usual suspects, plugs and wires first, maybe it just needs a tune up, get new brp6es ngk plugs, and some 8mm accel wires or something compairable...
that should help, then check for boost leaks.
if you need a tune up and you have boost leaks, and you fix them, you'll love youre car even more believe me.
 
Try rerouting the ECU wires in a circular motion like My CPU is connected to my house electrical wires, makes it much faster to access high speed internet and dsl is a plus.

I'm just screwing with you Marc. Exaclty what he says though, its bogging/missing before the turbo spools but anything after turbo spools it runs WOT without hesitation, very smooth. After reading some other posts and searching on the board I think its igntion!? I would think if we had a boost leak it would cause the car to run like crap while boosting?
 
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