tps voltage problem

[fox182]

hey i have a 92 notch that started running a little weird one day i was checking around and my tps was showing 5 volts, i am definately checking the right wire and i also checked for shorts between wires, i replaced the tps, and still does it, this is driving me crazy i cant figure it out i dont kno if my computers shot or what, anyone else have this problem?

 

[greengoblin95]

it sounds like your range is way off. i think its not supposed to be no more than 1.0 volt at idle, i dont know what the minimum is, i would have to check the specs for that and at wot.

 

[fox182]

Yeah it's definately way off it runs rich ever since it started I tried everything I could think of I just dot wanna by a new a9l and it not be the problem but it's the only think left I can think of

 

[TenorPlayinGuy]

Which color wire are you checking. The green wire to Ground is what you want to find. The red wire I believe has 5v from the computer going through it. If you get 5v on both wires, then you are shorting somewhere between the red and green wires. Let us know. I can post pics if you need help

 

[fox182]

That's the thing though I checked for continuity bewteen all of them with a meter and I got nothing

 

[TenorPlayinGuy]

Well, try this. Disconnect your TPS. Check voltage on the cars harness connector. Red should read 5v, black probably .12 or something real small. but the green should have nothing. Then let us know the results.

 

[Kdubslugga]

If your tps is showing 5 volts your car should not start, does it? 5 volts should turn off your injectors and if you keep trying to start it will back fire VERY LOUD!!!

 

[TenorPlayinGuy]

shouldnt but ive never had this happen to me neither

 

[liljoe07]

Geez guys.

Fox182, run the codes from the computer. You may have a burnt circuit on the ECM board. Fixable if that's the case.

Either run the codes, or go ahead and open the ECM up and look on the back of the board for the burnt trace up by the main 60 pin connector.