02 KJ ran perfect - now won't start...

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keeponjeepin

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Placed a rebuilt engine (3.7) in an 02 KJ 2wd and it fired right up. Ran great, put couple hundred miles on it then DTC said intermittent loss of Crank & Cam senors. Changed them with new and ran fine, rough idle. Then shut off and hasn't started since. I've changed and tested everything. I have a DRBIII, shows no codes. Tried to flash update, said nothing to update. Cam & Crank count works and says it's "InSync"

Has 150psi compression and timing is dead on.

Have power to Cam & Crank Sensors, MAP, TPS - put PCM in another running KJ, ran perfect. Tried 2 other PCM's, nothing.

It'll crank but no power to the injectors. Has 50psi fuel pressure. Even changed TCM, same. Tested grounds - good. Odd part is when I unplug the Crank Sensor it throws no codes, it will if the Cam Sensor is unplugged.

KJ does not have SKIM or key w/chip. Changed all fuses, relays, and ASD - ready to burn it!

Any ideas KJ Gurus?
 

thegreatgate

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You can pretty much ignore this post because I don't know anything about cars but....

My 03 Liberty wouldn't start one day and it was the IAC (Idle Air Control).

Like I said, ignore this post, just throwing this out there because my Jeep started right up fine one minute, and then within an hour would not....And this was the problem...
 

keeponjeepin

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Thanks for the input, I've changed the IAC with three other ones, still nothing. I do get codes if I turn it over for 7-10 seconds.
 

keeponjeepin

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Decided to stop chasing ghosts - pulling rebuilt engine and going to part the KJ out. Body is in great condition - Red Sport 2wd. I'll start listing items over the next couple days. If anyone needs parts - let me know. Brian
 

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