1991 Mazda RX7 engine doesn't start

Tiny
NAVALES LEO
  • MEMBER
  • 1991 MAZDA RX7
Engine Performance problem
1991 Mazda RX7 Two Wheel Drive Manual 100000 miles

please give me idea to fix my car, I don't know what's wrong with it, it sounds starting but it go.
Thursday, August 26th, 2010 AT 2:34 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Pick your symptom:

**Cranks but no start condition:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

**No crank at all/nothing/nada when key is engage to starting position

Could be a blown fusible link, the starter, starter relay, clutch switch/park and neutral switch and ignition switch assuming the battery and connections are good. Note:If it doesn't apply disregard.
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Friday, August 27th, 2010 AT 12:00 AM

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