COP Grounds and Misfires!!

[SHO_ROLLER_2]

I changed the coils and plugs but still have a misfire.

I think I screwed up the grounds or something. There is a plug looking deal that I was told is a ground for the driver side coil.

IDK, I have ZERO experience with GEN 3's. Please help.....this car should be running GREAT!

 

[stephen newberg]

There is a plug looking deal that I was told is a ground for the driver side coil.

This sounds strange to me and I do not understand it. There is a coil inside each plug fitting, as COP stands for Coil On Plug, and aside from the wire going out of the cap and a bracket to keep things from moving, there are no other connections. Perhaps you can post a photo of what you are talking about?

pax, smn

 

[SHO_ROLLER_2]

I'll try to get a photo up, but until then, what would cause an intermittent miss with these cars?

 

[stephen newberg]

A COP going bad is a very common cause of a miss on this engine. Likely the most common cause, by far.

pax, smn

 

[SHO_ROLLER_2]

All coils are new

 

[SHO_ROLLER_2]

Code reads bad coil d secondary / primary circu

it short

 

[SHO_ROLLER_2]

It seems to only mis while its needing fuel. Pump?