low idol

[joeydm090682]

i was driving my 94 mark with 70k back home from south jersey when i was near my house i decided to fill her with gas befor i put her in the garage, after getting gas and starting the car it idols now at 400 rpms. did i get bad gas? did something wear out? what should i look for?

 

[jdlmkviii]

Could be the O2's... mine did that every once in a while until I replaced them. For now, drive it a little more and see if there are any more symptoms before we can decide what the problem is.

 

[brentalan]

Well, try different gas first, only way to tell.

 

[fossten]

i was driving my 94 mark with 70k back home from south jersey when i was near my house i decided to fill her with gas befor i put her in the garage, after getting gas and starting the car it idols now at 400 rpms. did i get bad gas? did something wear out? what should i look for?

Does it also over-idle? Too high sometimes? If so, it's your throttle control sensor. Mine did that too.

 

[Rope]

Is my throttle position sensor hard to change, what is the proper way to do this, do I have to take my throttle body out in order to change my throttle position sensor.

 

[fossten]

Is my throttle position sensor hard to change, what is the proper way to do this, do I have to take my throttle body out in order to change my throttle position sensor.

I took mine to a mechanic.