a month or so ago i posted a thread about having a SES light that had an error code for misfire on cylinder #7. so checked all the basics first when it came on the first time like coil pack,wire,plugs and then when all that failed i pulled the fuel rail and injector and cleaned them up then installed them and the light went away. BUT..................... NOW ITS BACK AGAIN
when i reinstalled the injectors from taking them out i switched one of the injectors with the #7 injector so that way if the light happen to come back on and be on another cylinder i would know it was that injector that was bad. but its still the same cylinder giving me the error. any ideas?

 

do a compression check

 

Check the compression for sure....i just burnt a #7 down by running lean with my charger.......makes for a bad christmas....but gives me a reason for heads and a cam.