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1987 Mazda RX7 Repair Question


Topics covered: Engine, Spark, Coil pack.
Mileage: No information provided.

Asked on March 14, 2010

1987 Mazda RX7 Car Cranks but wont start has fuel injection

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.
Avatar Asked by joe1853

Answer

Replied on March 14, 2010

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.

Tiny Answered by rasmataz
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