2001 xj no injector pulse
06-25-2014, 10:31 AM
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Year: 1998
Model: Cherokee
Engine: 4.0 i6
2001 xj no injector pulse
ok here is the skinny i bought another xj for a dd cheap with a no start problem. brought in back to the shop threw a crank ps in it.... just figured yeah thats common. i was wrong. i am a professional tech. and know my way around jeeps very well. i have both cam and crank signals to my scan tool but no injector pulse. and no DTCs any clues? please
06-25-2014, 11:58 AM
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Year: 1999
Model: Cherokee
Engine: 4.0
ok here is the skinny i bought another xj for a dd cheap with a no start problem. brought in back to the shop threw a crank ps in it.... just figured yeah thats common. i was wrong. i am a professional tech. and know my way around jeeps very well. i have both cam and crank signals to my scan tool but no injector pulse. and no DTCs any clues? please
If the injectors aren't being powered and the ignition coil rail isn't being powered, the ASD relay is probably the bad boy.
Check fuse 11 in the JB. It powers the ASD relay and fuel pump relay control coils.
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