Having problems with your 1998 Jeep Cherokee Grand 2WD ?

Rough idle, and rough in the 50 - 65 mph

\015 My 94jeep grand cherokee started running rough a couple of weeks ago, and they read the code and said it was a sensor regarding the acceleration. so, we replaced it, still running rough and getting worse. when we read the code using the key turn trick, it comes up 12 13 55. can anyone help me find out what this means?\015 Posted / edited by AnonymousUser on : 19-02-2018

Answers :

Code 12 is start
\015\01213** No difference recognized between the engine MAP reading and the barometric (atmosphereic) pressure reading at start-up

Code 55 is end so 13 is all you need , basically your map isnt working
\015\012its an easy fix if thats all , take one off , put new one on
Repair Help & Product Troubleshooting for 1998 Jeep Cherokee Grand 2WD

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