I’m sure this has been discussed, but I cannot find the thread anywhere. If someone wants to reply with a link, that would help too.

I was given a P0303 ODB code on my wagon. Changed spark all plugs and all coils cause why not? Didn’t solve issue. Swapped coils and plugs with another cylinder and no luck. Pulled fuel injectors and swapped with another cylinder, still nothing and all other cylinders are firing after each swap.
I will test power later today to both the injector and the coil.
For now, are there any other common problems that I’m over looking? Any tips would be appreciated.
thanks.

 

If you have swapped the coil and injector with a known good cylinder and the fault is still there, try a compression check for broken rings.

 

Why are you including IP and PDF spam in your reply?