in trying to track down a P0010 issue I notice the red insert is missing from my pcm plug (center plug). Can I buy this insert anywhere? Evidently someone in the past lost it. I also have a U1950 code that I just saw.

Thanks,

 

This part

 

Some plugs can be ordered through the dealer, but they are typically expensive. There are used PCM pigtail sets on ebay for about $30. Any pick-n-pulls near you?

 

I've looked on ebay some but need to make sure I get the correct one. Closest pick place is about 90 miles. I also tried to find it on oem web sites but no luck I think it's a C175E harness 12B637