Definitely would go to diag mode and check the ECU memories for clues as to what errors the motor may have logged.
Would also check
Post #29. Align the pulley line with a line that you make (or imagine) centered between the two screw holes.
Gary, I first learned in the 60s to use white or yellow lead paste. It was excellent at showing tooth contact, but of course it can't be purchased today.
EST = electronic spark timing!
The distributor triggering unit runs 1:2 with the crankshaft, and with no mechanical advancing mechanism.
Hey, I have a 1989 or 1990 Mariner 220hp V6 EFI that I am having a few issues with lately. The engine seems to stall when put into neutral and is running