I keep getting a code 307 on a 99 5.3 accompanied by a miss. I've tried switching the plug, wire and coil on the number 7 cylinder but it keeps missing and throwing the same 307 code.
Tomorrow I'm going to try switching a fuel injector to see if that is my problem. Can anyone recommend anything else that I should look at before going to the trouble of switching an injector?
Just in case there is any confusion (on my part) I am considering the #7 cylinder to be the one on the driver's side closest to the firewall..
A point in the right direction would be appreciated! Wes