1989 Other Dodge Models The firing

Tiny
TRANSAM916
  • MEMBER
  • 1989 DODGE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 250,000 MILES
I was wondering if a relay can possibly prevent a car from firing even if its turning over? The coil an modulater were changed an we did a bypass with a tester an hooked it 2 the battery to the coil an the fuel will come up but even with that, the car still wont fire An its a 1989 dodge plymoth
Friday, January 15th, 2010 AT 9:56 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You need to describe this vehicle properly-both dodge and plymouth sometimes uses the auto shutdown relay to power the coil and injectors

Do below

No start condition:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 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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Saturday, January 16th, 2010 AT 4:14 AM

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