JerzLT1

ruled out fuel by replacing the fuel filter and testing my fuel pressure when it starts stumbling, replaced ignition control module, and ignition coil, opti is only 3 months old. it started doing it when it was snowing, let it sit for a day and cleared codes (and put on new fuel filter) and it was fine. rained the following day and it started doing it again. pulled off the opti and theres no moisture or anything of that sort. loctited the rotor screws even though they werent loose and cleaned the opti with electrical cleaner, still the same exact symptoms. i have a HPTuners log file from when i scanned it and its reading -26ish degrees of timing at idle and it goes more into the negative as the RPMs go up. id be more then willing to send the file to someone if they want to take a look at it but im stumped at this point. any help would be greatly appreciated.