No start on a 1991 xj
02-29-2012, 05:13 PM
#1
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Location: arlington, tx
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Year: 1990
Model: Cherokee
Engine: 4.0
No start on a 1991 xj
Ok so here is what I got the fuel rail is getting gas but the injectors are not getting power or spitting fuel .... checked fusses and relays ... ????? What could it be .... o and its getting spark to the plugs
02-29-2012, 05:18 PM
#2
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Year: 1999
Model: Cherokee
Engine: 4.0
So you've actually pulled a plug and grounded it and cranked the engine and verified spark? Is it a strong, BLUE, snapping spark? Yellow/orange/white indicates a weak spark which may not be strong enough to start the engine; I've answered two threads this week where weak spark was the culprit and the ignition coil was the cause.
How do you know the injectors are not getting a pulse? Did you use a noid light?
How do you know the injectors are not getting a pulse? Did you use a noid light?
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