93 MX3 V6 engine stalling

Asked by themotoworld Jul 08, 2013 at 04:37 PM about the Mazda MX-3

Question type: Maintenance & Repair

recently installed a newer engine in our 93 MX3 v6. The problem is that the car stalls
when coming to a stop and the idle is erratic. When we told the mech / installer about
the issue he said it was the coil, but the problem persists. I have now heard about the
air control valve? This is a really expensive part...$500+ Any ideas? Thanks,
Paul
Fillmore, Ca.

9,655

Lars answered 11 years ago

I'd check for vacuum leaks first if I were you. Although it could be the IAC valve, it doesn;t pay to fork over $500 and find out that the problem was caused by a $5 piece of vacuum hose. Also check the air hose between the MAF sensor and the throttle body.By the way, Rockauto has a replacement IAC for under $400

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GuruXH4S9 answered 6 years ago

i had the same problem - the problem was a hole in the mass flow boot. Idling like a charm again!

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