4x4JeePmaNthINg
NAXJA Forum User
- Location
- Colorado
maybe your scanner is limited, there is a sync function for checking CMP to CKP correlation. basically looking for timing, Cam TDC to Crank TDC, think timing marks.
Anyway here is the troubleshoot list for this code...
I went back through today and test continuity point to point from all harness supply,ground,signal to pcm and ground to body/block, just a few locations to make sure grounding was good.
-I have 5v supply with key on and running
-continuity from sensor harness to pcm plug is good
-continuity from ground harness to ground battery,block, and strap just for the hey of it
-wiggled the crap out of wiring from cmps to ckps to pcm and grounds with no change.
-ohm tested ckps again for the sake of doing so while the vechile was warmed up, all good here to.
idle definitely fluctuate a little and has noticeable misses but when driving it is smooth
- distributor assembly only replaced, just to make sure the gear wasnt causing the pulse ring to wander, no change here
- ignition coil was replaced as well, just in case, Napa echlin, also no change
for the cam to crank sync, is this simply monitored by the lab scope and if one is off thats the culprit? or is there any other relationship between this synchronization that needs to be checked into?
this issue existed before and after an engine swap, the replaced parts above were after the swap.
im trying to exhaust all my options with in financial reason to NOT take this to a shop. I paid damn good money for the engine and really dont want to dump diagnostic coin for something that could be tricky to figure out.
i use loc tite on all flexplate bolts, ckp was removed before pulling old engine as to not damage it.
what would you all do next, what else would a shop be doing that I havent?????