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Rough Idle / stall and O2 heater error after tuneup

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Rough Idle / stall and O2 heater error after tuneup

Old 05-31-2019, 10:19 AM
Marcus Medina
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Talking Rough Idle / stall and O2 heater error after tuneup

Hey everyone. I hope you all can help me figure out what is going on.
I have a 98 Durango SLT with a 5.9 engine.
I did a tuneup with Champion copper core spark plugs.
I as well replaced the cap and rotor with OEM from the dealership.
After doing the tuneup the engine now has a rough idle and stalls.
I have replaced all the sensors on the intake. ( MAF, TPS, IAC)
I even went as far as replacing the o2 sensors just in case.
Any suggestions on how to fix this?
Old 05-31-2019, 01:54 PM
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Verify firing order is correct, and plugs are all gapped right.

Make sure everything is getting a good connection as well. (plug wires snapped on, etc.)

Aftermarket sensor can sometimes annoy the pcm, and it just won't run right.

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