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95 caravan stumbles and dies

3105 Views 18 Replies 5 Participants Last post by  ka9yhd
I just got my close friend a 95 caravan from a friend at church she lives in NC I'm in sc, anyway she had discovered last week that it would stumble and die sometimes at idle sometimes while driving long distance (hr long or so) it has a mild skip and kinda rough idle, it throws the codes 12,21,23, during the long runs light stays on, I have read the o2 sensor can kill the engine if bad, that I'd a first for me hearing that, based on the info I have and codes I have does anybody have a similar situation and solutions? A direction I can go in without Throwing parts at it anyet information that can help me help her is greatly appreciated :)
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Code 55 is insignificant, it just means 'end of message'.
Use an OEM O2 sensor if you are replacing it. I have had problems with Bosch and 'Universal' O2 sensors.
Also use the correct Champion Copper Plus spark plugs listed on the underhood label for the vehicle. If this is a 2.5L, check the cap and rotor for wear.
Change the oil and filter as needed if the dipstick smells like gas.
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