P0622 & P1294 Check engine lights - Jeep Wrangler Forum

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Old 09-16-2009, 06:37 PM
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P0622 & P1294 Check engine lights

so i've got a 98 jeep wrangler 2.5L and i just replaced my exhaust manifold since it was cracked. prior to this everything was running fine with no CELs, but after i got these two CEL codes P0622 and P1294. Can anyone help me here? i've searched but havent found anything in particular related to P0622
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Old 09-16-2009, 06:58 PM   #2
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I had p0622 before on a dakota (all the same codes as jeep) and it turned out to be a short in the ground. If thats not it, I can tell you it has something to do with voltage for sure. I'm sorry I can't help more I'm sure someone will but I would start by checking your battery voltage.

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Old 09-16-2009, 07:02 PM   #3
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This site has a list of all Jeep codes. You might need to look under the Generic code list as well.

Most Complete List For Jeep Check Engine Light Codes
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Old 09-16-2009, 08:49 PM
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yea i've checked them all. just as an updater i've narrowed down one of the codes. i bought some carburetor spray and started spraying around the intake manifold and what do you know? theres a huge leak. the cars idle drops whenever i spray aroudn there. i tightened it down as much as possible but still leaks. just replaced the gasket last week i guess it didnt seal properly. can anyone recommend me a good gasket to replace it with?
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