Vx misfiring

[Shaniafaulkner]

Please help on some ideas as to why my car is misfiring!

It's not plugs, leads or the coil pack at all and I'm stuck for ideas. Cylinders 1 and 4 will just not fire

 

[Lex]

Hi
That is the far right coil pack.
We are talking about v6?

 

[Shaniafaulkner]

Yeah that's right, and yeah v6

 

[lout]

next stop is the dfi module

 

[Shaniafaulkner]

Have been through 2 in the last year but I have already tried a different module and same issue

 

[Lex]

There are 3 separate coil packs (cps= coil packs).
Have you changed all 3 cps with known working cps?
Have you changed dfi with a known working one?

 

[Shaniafaulkner]

Yeah sorry when I replaced it I replaced them all with three coils and the module, all were in working order

 

[jhvh777]

Well you've just about ruled out spark, I'm wondering about injectors, you can test their resistance levels easily enough with a multimeter and as far as my Gregory's manual says 11.8-12.8ohms is a good reading.

Having said that though I have an injector that is over 14 ohms resistance and car runs fine...

Gregory's manual also said try disconnecting the injector wiring while the engine is running for no more than 5 seconds to see if there is a difference.