tps signal

[92tsiawdguy]

I have a maft pro and when i first start the car i have a tps signal saying .51 at idle but once it gets warm i lose the signal and once you rev then let off the gas the car dies. i have replaced the conector for the tps and ive checked the wiring for the maft but i cant figure out the problem. i do have a check engine light but im not sure if its because of all the emissions deletes or not.
please help.

 

[GnArKiLL70]

i would replace the tps and see if that fixes your problem

 

[interex]

It's possible the TPS is bad. Also note that the O2 sensor can cause the TPS to send bad codes so if you have some terrible emissions that could do it.

 

[92tsiawdguy]

i switched the tps out of my 93 and it made no difference. the o2 isnt dead ### my maft is geting a reading. but that doesnt mean its good. any other idea?

 

[interex]

after you switched out the TPS and checked your o2, did you reset the codes?

 

[92tsiawdguy]

no i didnt reset the codes. i get a code when it gets up to temp then bam i lose the tps signal. my o2 is reading 1.60 with an a/f of 14.5 at idle. doesnt make sense. is it possible to wire the coolant temp sensor backwords. i got the car in pieces and it had spade connectors on it. i need to get it running perfect. im trying to break my best time. this is bothering me. its luckly not my dd. thank god for the 1.8l its a tank.

 

[interex]

Well, as soon as it gets to the specific temp that then tells the TPS to lower the idle down. If you're getting a code as soon as it's suppose to tell the idle to drop then its still possible the TPS is still bad, or maybe you have a bad connection.

 

[92tsiawdguy]

this is an old thread but i got the problem fixed. it ended up being a bad tps. it would work then quit.