new fuel pump and computer
10-22-2014, 04:54 PM
#1
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Model: Cherokee
new fuel pump and computer
please help I put a new fuel pump and computer in my 98 Cherokee sport it rolls over but no spark or new pump does not run can any one point me in direction to look?
10-22-2014, 05:09 PM
#3
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Year: 1999
Model: Cherokee
Engine: 4.0
Just what is your basic problem? Won't Start? Replace the crankshaft Position Sensor, and the Camshaft Positon Sensor. If this don't fix it change the PCM.
10-22-2014, 06:17 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
If you decide to change it I would highly recommend a Mopar (Dealer) CPS, not some aftermarket CPS.
Why did you change the PCM? Some other issue?
10-22-2014, 07:17 PM
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Model: Cherokee
hooked up obd reader to the jeep and it couldn't communicate with computer so I replaced computer it all started I drove to work it ran fine turned it off went to work for 8 hrs came back went to start and nothing just cranked over so first thought was fuel pump went bad replaced with brand new one that wasn't it was told to check ecm probably went bad so replaced that and still nothing please help
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