CM 570 ISX 500 in 99 Century

[Rawze]

Sounds to me like a whole lot of chasing expensive parts to me due to not knowing much what to do. Should only use certified ECM's as well instead of garbage from repair shops. Seen too many people buy 4 or 5 ecm's only to have to go OEM in the end to get their engine running right.


The fuel pressure sensor needs to work correctly.

The part# is 4921499

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Also, .. has anyone bothered to remove the guts of the fuel shut-off solenoid and see if the issue clears up?.. sometimes they fail intermittently or all together and cause the engine not to crank up properly.

Also, item #20 in the pic above.. is a filter screen. Sometimes they can get clogged up.

Also,.. I have seen where someone installs the fuel filter where it sucks air.. or the fuel-water-separator where it sucks air.. or a fuel line restriction, cracked pick-up tube, etc..

Alsol.. check to see the fuel tanks aren't empty (just stating that sometimes the obvious is overlooked).


What does Insite say the fuel pressure is during cranking?.
ref: http://rawze.com/forums/showthread.php?t...9#pid15609