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Mazda rx7 idling problems?
my boss recently bought an 88 Mazda RX7 and it is not running correctly. It idles very high and when you give it gas it tries to die. I know nothing about rotary engines but i would assume that the intake and everything would be very well similar to that of a piston driven engine. the car is not a turbo and i'm putting new plugs and wires in it to see if that will help any. I've tried tuning the idle screw on the throttle body and it didn't do anything. I am trying to get it running right so that she can drive it to work about 50 miles one way every day. I have heard that it could be a cracked intake but am not sure. I don't hear any vacuum leaks but i know they could be in several places.
2 Answers
- ChrisLv 51 decade agoFavorite Answer
Could be intake leaks or sounds like not enough fuel when given pedal. Its not a good mileage car for that many miles. Check vacuum leaks with spraying carb cleaner around intake, away from exhaust if possible.
- 5 years ago
Just so everyone knows, it has a Rotary engine. The Timing can be spot on and they will still backfire. I would have your catalytic converter checked out, or just see if there are any holes in your exhaust. Rotarys naturally have unburnt fuel in the exhaust, it is because of the periphereal exhaust ports, and the large combustion chambers. I had a 1988 with a small hole in the exhaust and it blew fireballs close to three feet long. The holes will be close to the exhaust manifold, be careful though, rotaries have EXTREMELY hot exhaust components.