Its me again, with another question. I am getting misfires on Cyl 1, 4, and 8. I am also getting injector circuit malfunctions on cyl 1, 3, and 4. I did ohms tests and 12V tests on all the injectors and they seem to be functioning correctly. I am now thinking the codes could be due to the camshaft position sensor. Any thoughts?

Jay

 

As far as the misfires, I would check the spark plugs in those cylinders and if they're looking fouled I would replace all 8 (champion copper). As far as the injector malfunction I would guess since they're reading alright it could be a short in the wires, or a potential bad PCM.

 

+ 1

Replace the plugs first and foremost, then move to the next option. Gap the OEM Champion Copper's at .040 before installation.

 

I very recently replaced the plugs with Bosch platinum 2's. Really dont wanna replace them again. U dont think it could be the cam pos senser?

 

Take those platinum plugs out asap! That is most likely where your problem was erected! You never put platinum in these rigs I don't care what the auto parts guys say. I've been working at my shop for 3 years now and we haven't had one problem due to spark plugs because of the fact we use what the OEM specs call for. For these particular rigs the temperature plugs it calls for is Champion Copper (el cheapo plugs).

Champion Iridium is also fine but never never use platinum. I would get those out asap like I said.

Typically if it was the cam sensor it would spit to you a check engine light and a code such as P0340.

 

those platinum plugs are most likely your problem, these trucks dont like platinum plugs and you should NEVER put them in it, take em out and put cheapo champion copper cores in there

 

Take those POS's out of the truck and take em back tell the Auto Parts counter personel they they don't work and exchange them for the cheap Champion Copper plugs. They are OEM and they work.

 

WOW, Damn I guess I wasted my money on them plugs then. I am gonna swap out thoes plugs asap. Thanks a lot.

 

Typically when a cam sensor fails it fails all together. It wont send intermittent signals to the computer. and If it does the computer will pick it up and shut the system down. Cause the computer has to know exactly where the engine is in its cycle at all times to function. I would suggest especial with recent experience that is something simple like plugs or worse case some shorted wires to the coil packs.

 

57chevy, no coil packs on the 5.9. His info states he has a 2000 r/t which only has the 5.9 engine. So spark plugs or plug wires only.

Edit: Also, come to think of it the Bosch Platinum+2 have a non adjustable gap so what they come as is what you're stuck with. For anybody reading this in the future, never use those POS's!!