No start on a 1991 xj
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Newbie
Joined: Aug 2011
Posts: 9
Likes: 0
From: arlington, tx
Year: 1990
Model: Cherokee
Engine: 4.0
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
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
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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