2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

aux port question

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Old Sep 30, 2004 | 12:17 AM
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scheistermeister's Avatar
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From: Cincinnati, OH
Question aux port question

just recently my car has been something wierd that i think has to do with the aux ports. when i and accelerating at WOT right around 3500-4000 my car has a dip in power. i mean, it doesnt hessitate, it sorry feels like i tapped the break real quick then it continues to accelerate. is this the aux ports? if so wtf is going on with them?
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Old Sep 30, 2004 | 12:34 AM
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From: Coldspring TX
What the heck? Are all of us getting a "mini-hesitation" now?, lol...

Doubt it's the aux ports. I've been trying to track my gremlin down for going on 3 months now. Check your grounds first, read them from the ECU (4 of 'em), should be close to 0 ohms, hot and cold engine. Then if you want, start hooking up a meter to a different sensor input every drive, and see if anything funky is happening with them...If you want to use this as a guide, so far I've checked:
1) fuel pump (replaced)
2) fuel pump circuit, including circuit opening relay, for voltage dips (none)
3) FPR (replaced)
4) damn near all inputs and outputs at the ECU, including AFM, TPS, CAS, boost sensor, all temp sensors/switches, O2 sensor, etc...In the process of looking at the primary injectors today & tomorrow for any output abnormalities
5) wiring for chaffing, including under the car

Does she do it in cruise also, or just WOT?
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Old Sep 30, 2004 | 12:43 AM
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From: Geneseo IL usa
minny

mine is sitting in the grage wile i'm taking my happy time on the boddy work and its getting cold out i'm going to have to go waste money on a space heater or wate till summer comes along
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Old Sep 30, 2004 | 01:52 AM
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scheistermeister's Avatar
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From: Cincinnati, OH
i dont have cruise control, but only at WOT. if i accelerate slowly (slower than WOT) it doesnt do it. the rpms dont slow down or do anything wierd, they just rise normally. it reminds me of when i used to have 01 hyundai accent with auto tranny and whenever i floored it on the high way the car would slow down slighly while it downshifts. but i have a 5 speed in this car. the car also does it above 7k rpm but i thought it was just out of its power band or had a slipping clutch then.
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