CAR CRANKS BUT WONT START HAS FUEL INJECTION

1987 Mazda RX7

Tiny

joe1853

March, 14, 2010 AT 4:42 PM

Engine Performance problem
1987 Mazda RX7 4 cyl Two Wheel Drive Manual 147000 miles

Hi I have a 87 mazda Rx7 it was running but now will crank but wont start any help would be appreciated thank you.

FOUND 51583 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

March, 14, 2010 AT 4:47 PM

Cranks but no start condition: Rotary Engine

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.

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