my car has been messing up, i have an 89 formula 350 that has a high idle does anyone know whats wrong

 

Check your TPS voltage and your IAC.

 

its so weird, this morning my car was running fine at its 600 rpm idling range, but im sure the problem will come back, so i will check my IAC cuz the tps is new, but i wonder if the tps has to do anything with it or the map cuz i got a 34 code

 

Is your throttle cable sticking a little?

 

no the cable does not get stuck

 

ok, well now my car is giving me codes 22 and 45, i know this means that it is the tps and the oxygen sensor but the tps is new and i have checked the oxygen sensor the other day and it is good? what else can it be that is setting off this code

 

Well, even though the TPS is new, that doesn't mean it is set right. have you tested the voltage on the TPS to make sure it's set correctly?

 

Goat,

Your error codes are trying to tell you something. The '22' is for a misadjusted TPS (low voltage). The '34' is for a low intake air flow at a given RPM and TPS input, which can be caused by an incorrect TPS setting. The '45" is for a rich oxygen sensor reading, which could be caused by an incorrect TPS voltage.

Eyerock is trying to tell you something, too. I'll add to it. PLEASE check/set the TPS voltage with a calibrated digital voltmeter. Then clear the error codes, and check the operation again.

 

ok i will check it, but is just crazy cuz on some days the car runs normal and when im driving the rpms just shoot up to 1500 like crazy and it wont go down for a while until i put it in neautral

 

do u think its the coolant temp sensor

 

Did you ever go and check your IAC?

 

ok guys i got a code 42 which is the EST, what does that mean?

 

ok guys im back again, to day my car's service engine line turned on and its telling me i have a code 15,21,34,36, and 42 what is setting all these codes on?

 

can any one help y it is setting off these codes

 

well i have trying to pin point the problem but its hard, i have been looking at these forums for solutions so, guys if u are out there, give me more tips pleaaaazzzzz

 

ok guys, this weekend i checked my car and desided to change my coolant temp sensor since it has a life time warranty and i also adjusted the TPS. After that i reset the computer to see if it would eliminte any codes. And it did but i still have a code 32 and 36, HOW do u get rid of them? Do i have a bad MAF or Burn off sensor?