Check engine light comes on when i let my foot of the gas??
11-26-02 | 04:21 AM
#1
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From: Atlanta,Ga
Check engine light comes on when i let my foot of the gas??
My check engine comes on when I let my foot off the gas. Once I give it gas it goes off any clues?? TPS maybe or 02 sensor?? If so how do I adjust?
11-26-02 | 04:43 AM
#2
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Joined: Apr 2002
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From: New Orleans, Louisiana
ever tried checking for codes???? it might show up there
mine did this and it was the air intake temp sensor the conector became loose and and would come on and off un till i shoved it back on, hope this helped
-Shawn (now all i need is a new one cause mine broke
)
mine did this and it was the air intake temp sensor the conector became loose and and would come on and off un till i shoved it back on, hope this helped
-Shawn (now all i need is a new one cause mine broke
)
11-26-02 | 05:01 AM
#5
I wish I was driving!
Joined: Dec 2001
Posts: 5,241
Likes: 84
From: BC, Canada
Originally posted by Stevo970
heh it might be man cause not to long ago i put an APC intake on!
heh it might be man cause not to long ago i put an APC intake on!
Pull the codes, and let us know what code is stored.
11-26-02 | 12:19 PM
#7
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From: Atlanta,Ga
Well I'm thinking it is the TPS cause I put my poor baby in the ditch the other night it was raining and you know how it is when its running they love to slide around and im thinking that knocked my TPS out of wack!!
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11-26-02 | 01:03 PM
#9
Despise Enmity
Joined: May 2001
Posts: 2,420
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From: Richmond, VA
You have a 90 (series 5). There is no need to have anything to pull codes from the ECU, you only need to ground the green connector by the battery (it's a single green female). Do that with the car off and the ignition key out. Now presuming your check engine light works all of the time (mines iffy at best 
), go and turn the key to "on" but don't start. All of your idiot lights should light up. Good. Now wait 10 seconds. The C.E. (check engine) light should disappear. Once it does, it should start flash out code. How to read it? Long flashes indicate 10, short flashes indicate 1.
so, if you get:
Long, short, short, short =13
Long, long, short = 21
It will cycle and if you have more than one noted error it will cycle both.
IE 13, 21, 13, 21, 13, 21
It does give a few seconds of a break in between displaying multiple codes.
Let us know what the number you get is, or do a search for (codes ECU) and find the instructions that apply for the 1989-1991 model years.
In all likelyhood, it IS your TPS. Mine was doing the EXACT same thing before it just got worse and worse (the TPS that is)....
), go and turn the key to "on" but don't start. All of your idiot lights should light up. Good. Now wait 10 seconds. The C.E. (check engine) light should disappear. Once it does, it should start flash out code. How to read it? Long flashes indicate 10, short flashes indicate 1.so, if you get:
Long, short, short, short =13
Long, long, short = 21
It will cycle and if you have more than one noted error it will cycle both.
IE 13, 21, 13, 21, 13, 21
It does give a few seconds of a break in between displaying multiple codes.
Let us know what the number you get is, or do a search for (codes ECU) and find the instructions that apply for the 1989-1991 model years.
In all likelyhood, it IS your TPS. Mine was doing the EXACT same thing before it just got worse and worse (the TPS that is)....
11-26-02 | 01:52 PM
#10
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Joined: Dec 2001
Posts: 445
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From: Topeka, KS
i also used to have this problem. it happened after i got my RB headers on. For me, it could have been 0xygen sensor? But I know I installed it in the presilencer correctly, so who knows? Maybe TPS, because I did have a bad idle.
11-26-02 | 02:35 PM
#11
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Joined: Nov 2001
Posts: 543
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From: Home: Maine / College: Greensboro NC
I have this same problem on mine. It kicks in when it is warmed up. I get a bit of jerking here and there and when I pull the codes I get the narrow and full codes for the tps. Something like 12 and 18. I have tried my best but I can't get **** for resistance out of it. I wonder if it isn't broken. Any ideas.
11-26-02 | 02:56 PM
#12
Despise Enmity
Joined: May 2001
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From: Richmond, VA
Originally posted by Gefunk
I have this same problem on mine. It kicks in when it is warmed up. I get a bit of jerking here and there and when I pull the codes I get the narrow and full codes for the tps. Something like 12 and 18. I have tried my best but I can't get **** for resistance out of it. I wonder if it isn't broken. Any ideas.
I have this same problem on mine. It kicks in when it is warmed up. I get a bit of jerking here and there and when I pull the codes I get the narrow and full codes for the tps. Something like 12 and 18. I have tried my best but I can't get **** for resistance out of it. I wonder if it isn't broken. Any ideas.
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