HELP!!!
10-02-2009, 05:10 PM
#1
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Year: 1988
Model: Cherokee
Engine: 4.0
HELP!!!
Please help me! i have an 88 xj and having problem getting it running. the motor turns over but there is no fire to the plug. also there is plenty of fuel pressure but it seems the injectors arent working. the plugs are brand new. i would think they would be wet from fuel when trying to start it but there not. dont know what to do. all help would be highly appreciated. thanks
10-02-2009, 05:15 PM
#3
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Location: Oak Harbor, WA.
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Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Yep, sounds like CPS. With a bad CPS you won't get fire to the plugs or an Injector fire pulse. You can have good fuel pressure all day long but, without a fuel injector pulse, the fuel never makes it to the cylinder.