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How do i get my cherokee running?

I changed the crank sensor. Still no fire, turns over & I Sprayedstaring fluid straight into the intake. Changed ECM, I'm thinking may be the main computer now. Idk

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1 Answer

The ECM is the main computer & they seldom fail,
unless you took it out doing some testing that caused
it to fail.

Did you check fuel pressure at the motor?
Did you check for spark using the proper tools to do so?
Do you have injector pulse?
Is the MAF hooked up?
Do you have a good working ignition switch & all
those circuits going where they should

Need a wiring diagram at some point to pick a test point

The ECM you changed, did it need to be programmed first
on a bench or after now in the vehicle?

Is the flywheel broken & do you have number one cylinder
recognition with the new cps or whatever that sensor is
attracted to?

Posted on Mar 19, 2014


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