missfire cyl 1 with p0201 code

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04-05-2010, 12:17 PM

cherokeemudder

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Year: 96

Model: Cherokee

Engine: 4.0

missfire cyl 1 with p0201 code

hi im new here just wandering if any1 can please help me out i got a 96 cherokee and it threw a code for injector circuit fault it missed before i held it to the floor it cleared up but it gets wet and it did it 3 times 1 time when i washed motor idk if its computer or not i usuallly let it sit over nite and its fine but not this time i had it up to the pedals in water when it happened

any help will be great thanks

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04-05-2010, 05:50 PM

98 JeepJeep

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Year: 1998

Model: Cherokee

Engine: 4.0

Put a Noid light on it and see whats going on.

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04-05-2010, 10:38 PM

Mattpar

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Model: Cherokee

Quote:

Originally Posted by 98 JeepJeep

Put a Noid light on it and see whats going on.

swap the injector with another one and see if the code follows the injector

or disconnect suspected fuel injector and do a resistance test across the 2 pins on the injector and compare it to the other ones. If its not close to the other ones, replace it. I dont know what spec is suppose to be,....