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07-16-2004, 02:26 PM | #1 |
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Join Date: May 2004
Location: Mattoon IL.
Posts: 91
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idle
Went out for a drive and got on it a little and when I went to stop my car was idleing at 2200 rpms. Before it was at about 900-1100 what the $*#@ is going on with it. Possibly TPS??? Or ecu??? Need help badly... Thanks
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07-16-2004, 02:44 PM | #2 |
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Join Date: Aug 2002
Location: Rochester
Posts: 553
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ok, it doing everytime you run the car, or does it go away when you shut it off? If its doing this all the time, it can be a number of things,
1. Vacumm leak 2. IAC valve ( on throttle body ) stuck open 3. Mass Air sensor faulty 4. TPS sensor bad or unadjusted. Do you have any warning lights on ? if yes, well check for codes. sometimes, if you not in the habit of getting on your car often, you get carbon and grime biuld ups in the throttle body and something could have gotten stuck in the IAC valve causeing it to stay open.. if thats the case, take it off and clean it with TB cleaner. Also for a vaccum leak a hose could have popped off, or cracked open from flex. The ECU could also do that, and it isn' t common but it could have gone bad or just temp flaked out. if after you check all of this and it still does it, the disconnect the battery for 20 min + and the re connect and start the motor.. if it clears up then it was a ECU issue. If it doesn't well, it could still be a ecu issue and you could try a different one to see if its the problem. let me know what you find. |
07-16-2004, 06:12 PM | #3 |
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Join Date: May 2004
Location: Mattoon IL.
Posts: 91
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It was doing it all the time. I just put the throttle body and IAC on it about a month ago when I put a ported intake on it. I do not have a check engine light because I took it out. No EGR hooked up. Got tired of looking at it. After I cleaned the IAC up it slowly went down after about 5 min of runtime. IT has happened before but all I had to do then was unhook the battery and it went back down. But it is fixed now. I hope. Thanks
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07-17-2004, 02:45 PM | #4 |
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Join Date: May 2004
Location: Mattoon IL.
Posts: 91
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How do I adjust the TPS??
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07-23-2004, 12:48 PM | #5 |
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Join Date: Aug 2002
Location: Rochester
Posts: 553
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you need a volt ohm meter and adjust it at idle at 1.75V i believe.. the corral has great instructions on how to do this.
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07-23-2004, 01:37 PM | #6 |
Gimme a Drink!
Join Date: Dec 2002
Location: NYC
Posts: 694
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dont set tps voltage over 1 volt! i think ideal is .95-.98 volts. someone correct me if i'm wrong..........
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1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong! |
07-23-2004, 01:48 PM | #7 | |
It's a lot like a race car
Join Date: Aug 2000
Location: Meridian, MS
Posts: 4,130
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Quote:
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1987 Buick T-type 1998 HD Electra Elide |
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07-23-2004, 03:06 PM | #8 |
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Join Date: Aug 2002
Location: Rochester
Posts: 553
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you guys are right, 1.75 is for a saab turbo my other vehicle.. thank god u guys caught that.. its been a long week.
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07-23-2004, 11:59 PM | #9 |
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Join Date: May 2004
Location: Mattoon IL.
Posts: 91
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How do I adjust the volts?
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07-24-2004, 03:26 AM | #10 | |
It's a lot like a race car
Join Date: Aug 2000
Location: Meridian, MS
Posts: 4,130
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Quote:
Sorry, it's been so long I can't remember which wires to probe -Josh, aka the tireburner
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1987 Buick T-type 1998 HD Electra Elide |
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