Yet another 6.0 Excursion no start.....
#1
Yet another 6.0 Excursion no start.....
05 X Limited, 95K, cranks but will not start. Ongoing intermittent problem. Has been fine for the last three months but now in the same boat again. Unplugging ICP on passenger valve cover does not make a difference. All the vitals seem good as far as IPR, ICP, ICV, CVI, Ficm power (FICM was replaced earlier in the summer), etc. Where I'm not good is Fuel Pulse Width (FPW) is 0 and the Cam/crank sync is 0. Am I correct to believe I have a wiring issue somewhere? Or could it be the PCM. Not sure where to go from here. It did the same thing three months ago but seemed to fix itself. Thanks in advance.
#2
05 X Limited, 95K, cranks but will not start. Ongoing intermittent problem. Has been fine for the last three months but now in the same boat again. Unplugging ICP on passenger valve cover does not make a difference. All the vitals seem good as far as IPR, ICP, ICV, CVI, Ficm power (FICM was replaced earlier in the summer), etc. Where I'm not good is Fuel Pulse Width (FPW) is 0 and the Cam/crank sync is 0. Am I correct to believe I have a wiring issue somewhere? Or could it be the PCM. Not sure where to go from here. It did the same thing three months ago but seemed to fix itself. Thanks in advance.
FPW at 0 means the FICM dont know where the timming at so the FICM is Not turning on it dont know when to fire the Injectors
You ALso have FICM SYNC I am shure its No as well
Do you have a DVM I can give you the procedure to check the CAm/Cranks sensors
#3
gotta have that sync, heres some tech data. As always, any codes would help but this should get you on the right track.
Cam-Cmp diagnostics.pdf
ckp diagnostics.pdf
ckp-cmp wiring.pdf
ckp sensor.pdf
Cam-Cmp diagnostics.pdf
ckp diagnostics.pdf
ckp-cmp wiring.pdf
ckp sensor.pdf
#4
#5
Yes they normaly throw a DTC
what scanner are you using??????
If you want to go further into it, disconnect the middle PCM connector and plug it back in again. Make sure it is secured to the PCM properly (since you mentioned you had disconnected it during the repair).
If you want to verify those circuits, you can connect a DVOM to both the CKP and CMP circuits of the middle PCM connector. Set your DVOM to Hz. On the CKP circuit, you should be seeing 150 to 200 Hz when the engine is cranked over (directly proportional to 150 to 200 RPMs). On the CMP circuit you should get a reading of 1.1 to 1.9 Hz when the engine is cranked over. Hopefully you won't have to go this far before you resolve your issue.
__________________
connector C1381t
Camshaft
Pin# 31 Camshaft +
Pin# 43 Camshaft -
Crankshaft
Pin# 30 Crankshaft +
Pin# 41 Crankshaft -
what scanner are you using??????
If you want to go further into it, disconnect the middle PCM connector and plug it back in again. Make sure it is secured to the PCM properly (since you mentioned you had disconnected it during the repair).
If you want to verify those circuits, you can connect a DVOM to both the CKP and CMP circuits of the middle PCM connector. Set your DVOM to Hz. On the CKP circuit, you should be seeing 150 to 200 Hz when the engine is cranked over (directly proportional to 150 to 200 RPMs). On the CMP circuit you should get a reading of 1.1 to 1.9 Hz when the engine is cranked over. Hopefully you won't have to go this far before you resolve your issue.
__________________
connector C1381t
Camshaft
Pin# 31 Camshaft +
Pin# 43 Camshaft -
Crankshaft
Pin# 30 Crankshaft +
Pin# 41 Crankshaft -
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Nathan Henson
1999 to 2016 Super Duty
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11-25-2018 03:06 PM