Check engine light is on and RPM will not exceed 4000
Apr 22, 2015 at 6:15 AM
1990 Mazda RX7 Engine
WRBPANAMA
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The place to start is by having the diagnostic fault codes read and recorded. The people at many auto parts stores will do that for you for free but they usually can only do that on '96 and newer cars. You might have to go to a mechanic with a scanner.
Apr 22, 2015 at 8:10 AM
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