[nhawkmd]

Hi. Swapped coil & plug wire. Code still with #4. #4 plug looked questionable. Changed plugs. Code still there. If this issue is listed elsewhere on the forum, I apologize. I could not find it. Any help is appreciated. There seems to be a number of possibilities (here, you tube, etc) and trying to narrow it down. Thank you for any help.

 

[OpalLacod]

Swap your injector.

 

[nhawkmd]

Ok. I took a chance and ordered a new injector. I figured that was all that was left. No luck. New plugs, ignition coil, plug wire & now injector. Still brings up stabilitrak & traction control on the display and p0304 on the reader. Any ideas? I am at my wits end.

 

[OpalLacod]

Swap the injector around to verify a good new injector.

Next I think is a compression test on cylinder 4.

 

[nhawkmd]

Thanks Jacob. It looks like the compression test. I swapped them and same.