[J C Smith]

I have P0302 code on a 3.7. Is there a way to test coil without switching it to another cylinder. Like with a DVOM? It sure would be nice.

Chris

 

[hydrex]

A scan tool should be able to tell which cylinder has the bad coil. I guess, you could confirm it by switching to another cylinder.

 

[thunderhawk]

well he said P302 so that's Cylinder 2 but yes OHMS Resistance test on coil can be done to determine if its bad but not sure what OHMS Are suppost to be my book does not specify what its suppost to be id do the Cylinder swap and see if it moves to the Cylinder its moved too. I had a P0301 Code So Im Doing The Same thing to see if it moves if not it could be a plug or the Injector Or My Worst fear Headgasket on that Cylinder I hope not

 

[J C Smith]

hydrex, it is number 2 coil.

thunderhawk, yeah I thought it might be able to be tested. Probably could compare it to a good one.

Well as it turned out , the coil was heat damaged near the bottom rubber and the glue was melted and gone. It was obvious compared to the others, so I put a new coil pack on cylinder 2 and it runs fine. Glad it wasn't an injector. New NGK plugs as well.

As I was putting new plugs and coils back on I noticed #1 and #3 coils had two faint splits in the plastic that I can only attribute to heat as well. Have to replace those in the near future.

Thanks for the replies and thunderhawk, good luck on your diagnosis.

Chris