Question about 1991 Mazda MX-5
Check your diagnostics in case they can reveal something...
If you're driving an American model WITH a check engine light on the dash, put a paper clip between terminal 10 and GND in your diagnostic box (right side of the engine bay near the air intake - has a big DIAGNOSTIC written on it). Then hop into your car, turn the key to ON (but don't start the engine). The light should go on steady - then off for 4 seconds. After this any diagnostic codes will be displayed. Long flashes are for the first digit in a two digit code - short flashes are the second digit. There will be a 4 second pause between each code AND the codes will repeat. If you get codes, record them and post them and I'll see what I can suggest.
Otherwise, check your spark plugs and wires - replace them if necessary - check the coil packs and the connections thoroughly. Poor or no ignition is most likely your problem.
Also check your air intake, filter and check and clean your throttle body.
I'm betting you'll find an issue in the ignition system though.
Hope this helps,
Posted on Dec 13, 2009
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