Rough idle in 93 camaro dont know what to change map maf o2 sensor?

Question

i was hoping to have some one tell me what sensors need reploaced the car has 120000 miles and has a bad idle and some times when i start it dies right away and i have to try again i also heard that a coolant temp gauge mite be a problem i have noticed that one of my gauges does not work any help would be so great thanks

the check engine light does not turn on untill im goin 60+ and then slow down

Answer 1

If your car is tunned up (good plugs, wires, air and fuel filters, pcv valve, etc.) and the idle is rough I would clean the idle air control (IAC) motor. This is on the throttle body and regulates the air flow during idle. They become encrusted in carbon over time and cannot function properly. There will be a couple screws and a re-usable gasket, simply remove and clean well with throttle body cleaner. Super common problem. While your at it, remove the plastic air intake and clean the inside of the throttle body and throttle plates. You can also clean the MAF, you can buy a special spray to hose it down with at most auto parts stores. Now if it were a sensor, your check engine light would be on. The coolant temp sensor for the computer and the gauge are seperate, so don't use that as an indicator. Scan the computer for codes before spending that kind of $$.

Answer 2

Check the "distributer" for a faulty contactor.