i thought i needed to replace my crankshaft position sensor.
my truck is missing at high rpms, like the power goes off for a second then comes back.
also i just dont think its running as good as it should when doing WOT runs.
i got these codes.
p1682
p0500
p1694
p0602
truck runs good, just a lil funny on the top end. kinda hard to explain. almost like a miss. only mods are m4's and smarty.
no check engine light or anything.
any info is appreciated.
good call! especially the main grounds under the hood...
whenever a 24v comes into HotRodDiesel with funky symptoms, the FIRST thing Mike does is re-do all the grounds, and often times it fixes everything
P0500 (M) No Vehicle Speed Sensor Signal No vehicle speed sensor signal detected during road load
conditions.
P0602 (M) ECM Fueling Calibration Error ECM Internal fault condition detected.
P1682 (G) Charging System Voltage Too Low Battery voltage sense input below target charging voltage
during engine operation and no significant change in
voltage detected during active test of generator output
circuit.
P1694 (M) No CCD Messages received from
ECM
Bus communication failure to PCM.
It sounds to me like you have a wiring issue, or a ground issue. I would check all wires and connectors as well as grounds to make sure everything is OK before I started replacing parts.
Good luck.
mishkaya
I can't find my notes on this right now, but I somehow thought there were about ten of them total in the engine compartment area, but I could be wrong.ok i cleaned all the grounds, i counted 6. does that sound right or is there more?
i will go drive it shortly and report back.
thanks again
I can't find my notes on this right now, but I somehow thought there were about ten of them total in the engine compartment area, but I could be wrong.
mishkaya
only mods are m4's and smarty
What is your fuel system? the Stock lift pump? I had these kind of problems with bigger injectors and a smarty. you may be starving the vp at those rpm's. How long have you had those mods before these problems occured?
Try it without the smarty. When I went to my big injectors I had to get rid of the smarty. I killed my low end, yours is top end though. so I'm not so sure that the smarty will effect that due to the smarty not really doin much on the top, but its an easy way to find out. I've had many surges and weird sounds from my exhaust to at high rpm's. Once again problem fixed loosing the smarty.