1988 Mazda RX7 Repair Question
Asked on March 23, 2010
"runs rough and won't idle"
Engine Performance problem
1988 Mazda RX7 V8 Two Wheel Drive Automatic 168000 miles
I'm looking at buying a 1988 Maxda RX& GTU, but the owner listed it saying "runs rough and won't idle". He says the problem started within a week ago.
I'm looking at fixing this car and buying it, but I'm not sure where to start. He thinks the problem might have something to do with a bad sensor or vacuum leak, but isn't sure.
What might cause this sort of problem? Where should I start looking to find the root of the issue?
1988 Mazda RX7 V8 Two Wheel Drive Automatic 168000 miles
I'm looking at buying a 1988 Maxda RX& GTU, but the owner listed it saying "runs rough and won't idle". He says the problem started within a week ago.
I'm looking at fixing this car and buying it, but I'm not sure where to start. He thinks the problem might have something to do with a bad sensor or vacuum leak, but isn't sure.
What might cause this sort of problem? Where should I start looking to find the root of the issue?
Asked by remembrandt.tAnswer
Replied on March 23, 2010
Engine running rough or misfiring can be cause by the following-inspect and test all the following below:
1.Defective spark plug.
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Idle air control valve.
