Re: O/T: '92 Caravan engine code

Posted by wildonewest on January 14, 2007 at 06:29:03 from (69.21.9.114):

In Reply to: O/T: '92 Caravan engine code posted by MeAnthony on January 13, 2007 at 21:42:34:

I'm not sure what code # 27 is but it sounds like to much fuel like perry said "bad temp sensor" or Allen "pluged converter" Also the o2 sensor(s)could be bad. o2 sensors read the air/fuel mixture and send that info to the PCM telling it to run rich or lean and o2 sensors only start working after they warm up. You may have 1 or 2. One before the converter and/or one after the convertor. Make sure you have no exhaust leaks before your last o2 sensor! Ck your wiring to the o2 sensors and make sure they are not riped off or burned off and if so splicing some times will not work because it changes continuity. If all wiring is ok to the sensor(s) try unpluging them each one one at a time while it is running poorly and see if it changes anything. also you could try to remove the one o2 sensor before the converter and tell how much exhaust blows out the port hole. If the converter is pluged it will blow air out the port like an air compresser more so then the tail pipe.
I think it could be the temp or the o2 sensors but it could still be a bad injector dumping to much fuel. look at your spark plugs and see which one is fouled. if all is fouled it is a sensor/wiring problem and if you only find one fouled plug replace that injecter. It could be other sensors. Ck all wiring to the sensors. The battery could leak onto your wire harnes which is under the battery (bad idea by mopar)
Hope this helps!! Good luck and let me know if you have any more? My email is open.

Chris

Hotchkiss, CO

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