4.0L Multiple Cylinder misfire

[JPNinPA]

Brand and part number makes a difference.

 

[JeffMohr]

I had a set of the E3 spark plugs in my 2002. When I put them in I noticed a little miss in the engine. also My fuel consumption went up. After reading about the E3 problems I changed mine out. The miss disappeared. But then I pulled a p0138 code O2 sensor bank 1 sensor 2 High voltage. Sometimes you just cant win. Anyone know which bank is which?

 

[JPNinPA]

I had a set of the E3 spark plugs in my 2002. When I put them in I noticed a little miss in the engine. also My fuel consumption went up. After reading about the E3 problems I changed mine out. The miss disappeared. But then I pulled a p0138 code O2 sensor bank 1 sensor 2 High voltage. Sometimes you just cant win. Anyone know which bank is which?

Bank 1 is closer to the radiator and sensor 2 is post the mini CAT. First reset the codes and see if it returns. Then if it returns,Check the wiring.. It might be shorted. Or the sensor bight be bad.

 

[Johnne]

good job now to see what happened next!!

 

[98Chero]

Some 4.0 L motors are prone to head gasket and cam repairs. it might be your camshaft sense you have already addressed the headgasket.. just saying.

 

[NickLuzier]

If you haven't resolved the problem yet, do you have a coil pack that goes to your spark plugs?

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