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'88 o2 sensor not grounded.if the sundance is an 88 it will have a three prong lead. Plymouth realized that it was not getting enough ground (mopar EEK forum) I've wrapped a wire aroung mine and ran it directly to the negative terminal. code 52 is gone. As to the map senor. try this forum

check it out and let me know. how does the car drive? * the easiest way to test for a bad conerter is to unplug ita t the manifold. you will need two new bolts since the old ones will snap off. take for a drive. Warning, it will be VERY loud. bring license and registration, as well as a good story. before heading out clear all codes by disconnecting negative terminal for 10 seconds. if at the end of the trip the codes are gone, then you have your answer.

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โˆ™ 2011-09-12 21:35:28
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Q: If there is a code for map sensor and 02 sensor does this mean the cat converter is bad or plugging up?
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You have a bad 02 sensor after the catalytic converter.

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P= Powertrain 0140= bad oxygen sensor downstream from the catalytic converter. Check wiring first, if no problems with broken wiring replace sensor.

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What does p0741 error code mean?

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