Question about 1998 Dodge Durango
1999 Durango 5.2L, No spark,No codes, fuel pressure correct, No voltage to coil... any ideas? I replaced the PCM 7 months ago because of faulty issues with the injectors not working but with pressure at the fuel rail. Could it possibly be ignition switch?
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Posted on Jan 02, 2017
electronic engine control unit calculates the mass of fuel to inject, not how wide it sprays. It's the type of solenoid that you use. Some have wider spray nzzles than others. An external Fuel pump helps the delivery of the fuel. Also since fuel injectors rely on mass air flows nowadays, you have to have proper mixture coming through. hows your Fuel pressure regulator?
The throttle position sensor reports to the computer the position of the throttle butterfly valve, which the ECM uses to calculate the load upon the engine-but inorder for this to run, you may need an external pump.
Sounds like nothing is being grounded back to the ECM to even give a reading. If your regulator is improper and you do not have a external pump (depending on your model), than check those. If not, Start from scratch.
If you ever lose your way, go back to the beginning_REWIRE!
Posted on Feb 16, 2009
You may want to check a few other componants before you write-off the ECM. It could be it but its not common. The cam or crank positioning sensor, the ignition pick-up, the MAP or MAF sensor, And possibly the ignition switch.
Posted on May 16, 2009
I know the ford cars had a trip relay for the fuel pump. In the event of a wreck it shuts the fuel pump down and has to be reset manually. I am unsure if the pickups had the same thing.
Posted on Jul 11, 2009
The coils only power up during cranking check that first. If it sounds funny cranking,ie. cranks faster or slower than usual,then he's probably right about the timing belt. If it jumped the heads need to be replaced or rebuilt,both costly. Would be cheaper to put a used engine in.
Posted on Jul 15, 2009
with all of these replacement parts done,you have one of two things I can think of.
The computer can cause this and not show up on and equipment,I seen it happen,it a chance you would have to decide to take.
the other it would have to be mechanical something with your engine itself that is not showing yet.
Posted on Aug 12, 2009
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