Ok this code has been coming on at random times, and maybe its just the odd coincidence, but I just ran over 200K and I added some oil to the engine since I haven't had enough time to get it fully changed. Some spilled as I was refilling, onto the area around the oil cap.

This was a week or so ago, and now I have the P0420, and have searched around, and the part 94106 from performancepeddler.com has come up.

If I were to get that, would it be a good replacement to stop this.

Stock exhaust, 1998 F150 Supercab 4.6 V8.

Thanks,
Tyler

 

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