We haven't seen or worked on this machine for a few years, but the customer called the other day, no starting. One of my techs went out, I don't remember the code, but it could be the cam or crank sensor and he replaced both. He mentioned the cam sensor plug was cracked up on the outside. After this, he finally got it started and found he had a bad miss on one cylinder he thought. I ran him a compressor pressure tester to site, and checked again and found #3 and 4 cylinders not firing. We checked compression. Had well over 210 each, checked for an intake leak. All seemed fine. We installed new spark plugs in 3 and 4 ( yes- the special ones) and no help. We then swapped 3/4 coils with 1/2 coils and now 3/4 will run the engine, but 1/2 are no longer contributing. So.... We ordered two new coils and I went myself this morning to install. I tried to start the machine when I arrived, but it would crank and die. Installed the two coil packs, same result. I checked the 5 amp fuse at the injector and found that it was fine, but I would get a blinking voltage there, then when it started, the blinking would stop and the engine would die. I pulled the busted up plug loose from the cam sensor and I then get no "blinks" at the fuse, so this seems to indicate the problem?? Any ideas out there?
Nissan MCUL02A33LV
SN 9Q0119