| Go back to previous topic | | Forum name | Turbo/Nitrous Tech | | Topic subject | Hesitation under boost...please help. | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=33188 |
33188, Hesitation under boost...please help.
Posted by fly1, Oct-22-02 06:08 AM
This problem is driving me nuts! I'm losing sleep over this. This problem has been so intermitten. The car drives like normal when driven around town, and sometimes, when I go wot or into boost, the car bucks and jerks. I just can't figure this out. I've checked the vacuum lines and all connections. Everything looks secure.
I've checked and regapped the spark plugs, plug cables, coil, etc. Looks good. Any ideas?
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33189, RE: Hesitation under boost...please help.
Posted by toykilla, Oct-22-02 06:36 AM
You sure your getting proper fuel accomidations?
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33190, RE: Hesitation under boost...please help.
Posted by 992gnt, Oct-22-02 06:57 AM
Mine does it when I'm a little lean. Turn up the WOT on the power tuner and see if it goes away. Saturday I had mine turned all the way to 1, but it pulled HARD!
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33191, RE: Hesitation under boost...please help.
Posted by Avenger EST, Oct-22-02 06:56 AM
my car did that when my msd went south.
A.D.P.
"...If you do too much, people become dependant. If you do to little, people loose hope. If you do it right, people won't be sure you've done anything at all."
bring it on............
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33192, RE: Hesitation under boost...please help.
Posted by fly1, Oct-22-02 07:41 AM
Hmm, I'll turn up the Power Tuner on my way home tonight and see what happens.
I hope it's not the ignition. I just got that not too long ago.
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33193, RE: Hesitation under boost...please help.
Posted by fly1, Oct-22-02 01:39 PM
Okay, I turned up the WOT on the Power Tuner to 1, and the car seems to run OK. I also reset the TPS Acceleration values to HRC's. Again, the car seems to run well. I'll see how it acts tomorrow because this is what happened last week, which I thought was a vacuum problem. Thanks for the tips guys!
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33194, RE: Hesitation under boost...please help.
Posted by fly1, Oct-23-02 01:37 AM
Alright guys, I tried the above and, under normal driving acceleration, the car runs good. Also, if I accelerate hard (almost WOT) from 1st, to 2nd, to 3rd, the car will accelerate without much hestation. However, if I'm on the freeway or driving above 45-50 MPH, and try to go WOT, the hesitation and jerking will come back. Any ideas?
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33195, RE: Hesitation under boost...please help.
Posted by 992gnt, Oct-23-02 01:53 AM
Same thing mine is doing. I think it's related to the Acceleration enrichment files, but I can't get it just right. It's like the fuel map is rich at idle, lean at cruise, lean at WOT, but rich when you apply the throttle at cruise. I need to spend a day with someone watching the TPS and MAP enrichment to get it dialed in.
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33196, RE: Hesitation under boost...please help.
Posted by fly1, Oct-23-02 07:37 AM
I've tried lowering the TPS and MAP enrichment values, and somehow, that didn't solve the problem. It's driving me crazy! :o
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