Turbo Car Acting Up. Please Help
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From: Chattanooga,TN
Turbo Car Acting Up. Please Help I have an InconTT 370 trans am. I am having a problem with it cutting out while reving in neutral and while in gear at 3600-4000 rpms. The car starts sputtering almost like it has a 2 Step in neutral when you rev and at 3600-4000 rpms in any gear, but only if you stay at that rpm. If you just start out at idle or anything below say 3k, it does fine. It is not doing anything strange on the scanner either. Anyone know what is happening?
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In your origional post you did not say that it only does it sometimes. If you recreate the same load and same senario and it is intermittent, then you may have another problem. BUT...you can be at the same rpm but under a different load and the a/f be two totally different numbers, possibly causing the problem.
To go any further you may need a wideband, or a very accurate discription of what it is doing. Narrowband 02 sensors may also tell you something if you still have them.
To go any further you may need a wideband, or a very accurate discription of what it is doing. Narrowband 02 sensors may also tell you something if you still have them.
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TECH Enthusiast
iTrader: (71)
Joined: Dec 2006
Posts: 737
Likes: 0
From: Chattanooga,TN
In your origional post you did not say that it only does it sometimes. If you recreate the same load and same senario and it is intermittent, then you may have another problem. BUT...you can be at the same rpm but under a different load and the a/f be two totally different numbers, possibly causing the problem.
To go any further you may need a wideband, or a very accurate discription of what it is doing. Narrowband 02 sensors may also tell you something if you still have them.
To go any further you may need a wideband, or a very accurate discription of what it is doing. Narrowband 02 sensors may also tell you something if you still have them.
When I said sometimes, I meant only in neautral or hitting it at a given rpm. It feels great if I go from from a lower rpm, it then has 0 problems. The car was tuned at a reputable shop. Do you think its ok to beat on if I hit I start a lower rpm? I still have the factory o2s.
When I said sometimes, I meant only in neautral or hitting it at a given rpm. It feels great if I go from from a lower rpm, it then has 0 problems. The car was tuned at a reputable shop. Do you think its ok to beat on if I hit I start a lower rpm? I still have the factory o2s.
I just think it has a bad spot in the tune, but would reccomend a wideband to verify before moving any further. You can look at the 02's while it is acting up.
SD only takes over when you go into boost. The rest of the time it drives like normal using all sensors. Thats why sd is preffered.
Just try disconnecting an o2 and find out, it runs like ****. Ask me how I know.
If you car does not have a maf it is sd, all the time. If it is closed loop the 02 sensors help correct any error in the tune.
Sorry. 