1988 Mazda RX7 Repair Question
"runs rough and won't idle"
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?
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.
8.EGR valve that is leaking.
10.Throttle position sensor.
11.Idle air control valve.
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