At least as far as I know anything before 2005 (NGC PCMs) will not start without both a cam & crank signal to the PCM. If you are still getting the P0340 you need to fix that before it will start. I would say you should check to make sure the ring is turning when you crank the engine as a last check.

If you are still getting P0340 which is a loss of cam sensor signal & not a sync problem and if you inspected the tone ring & the old sensor did not show damage from hitting/rubbing on the ring there is no indication the whole assembly needs replacing (& no syncing needed). Would that cause any issues? I would be getting codes if the Bosch O2 sensors are not wanting to get along with my engine right? But still no codes are showing up at the moment after 3 start attempts today.īut once I can get an extra set of hands and eyes the coil pack check is the next easy thing to check. Now would it be a good idea to check the syn while I have the #1 plug out? Or maybe replace the old synchronizer and sync it the new one? Now I also changed all 4 O2 sensors last week.dont yell I used Bosch. The plan will be to pull the coil pack, insert a spark plug in 1 port, ground it and turn the ignition and see if we get a spark. I was by myself today so I have not been able to check the coil pack to make sure its firing on all 6. Its right on the edge of a full start but just wont do it. I have tried starting it 3 times and same results. I cleared the codes and it still will not start but not showing any new codes yet. I went ahead and changed the Camshaft position sensor and spark plugs.

How to install camshaft synchronizer