Totally lost now!!!
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
Took the plug apart at the cam sensor and cleaned it. No change. This is what I have, I added a couple of peds to the scan gauge. With the key on engine off and then cranking. When I have the key on engine off all gauges go to midpoint but the oil pressure one. After cranking it for a few seconds it finally does move but still not start. My battery light stays on the whole time even after I charged them. It seems like it is turning over slow but that may just be me. Here is the data I got today. Also took the cap off the oil filter and turned over the truck and saw the oil raise to the top.
Key on engine off:
Ipr 18.7
Icp 0
Syc 0
Fmp 47.5
Fss 0
Flp 12.0
While cranking:
Ipr 25.0
Icp 1003
Syc 0
Fmp 47.5
Fss 12.0
Flp 10.0
Could this all just be a wiring harness issue? What are the chances of it being either a oil cooler or hpop?
Key on engine off:
Ipr 18.7
Icp 0
Syc 0
Fmp 47.5
Fss 0
Flp 12.0
While cranking:
Ipr 25.0
Icp 1003
Syc 0
Fmp 47.5
Fss 12.0
Flp 10.0
Could this all just be a wiring harness issue? What are the chances of it being either a oil cooler or hpop?
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
Definitely monitor your ICP volts readings at KOEO and while cranking the engine over to see what it changes to. If the CMP sensor circuit checks out good, you may want to try borrowing a known good FICM to plug in and try. FICM SYNC in plain English just means the PCM and FICM are either "talking" or "shaking hands" with each other, or they are not. If they are not, there could be other reasons other than just the CMP sensor reading.
Thread Starter
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Senior User
Joined: May 2011
Posts: 291
Likes: 0
From: Wylie,TX
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Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
There was several SGII CODES FOR sync better make sure your using correct one or not a letter or something wrong with way SGII IS PROGRAMED
If you was to check FPW THAT WOULD VERIFY CMP/CKP SENSORS basically looking for any number other than 0 here
If you was to check FPW THAT WOULD VERIFY CMP/CKP SENSORS basically looking for any number other than 0 here
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Hydro test each battery cell
They don't look to bad considering you probably cranked alot
Your ICP sensor looks good so far
I'd have to check the DTC but don't he have the FICM DEATH DTC p0261
Edit I was thinking P0611
My bad looks like injector harness DTC
They don't look to bad considering you probably cranked alot
Your ICP sensor looks good so far
I'd have to check the DTC but don't he have the FICM DEATH DTC p0261
Edit I was thinking P0611
My bad looks like injector harness DTC
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
At this point, based on the information posted, I would try one of my earlier suggestions which is to "borrow" a known good FICM to swap in and try. If I recall correctly, you had cylinders #1 through #8 circuit low codes as part of a bunch listed in your original post. In my experience, this means the FICM is likely no good. Even if your FICM main voltage remains steady at 47.5 volts it could still be bad for other reasons too. If your CMP sensor circuit checks out good, that's the only other thing to try. Failing that, you could have a base engine issue but I highly doubt that.
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Senior User
Joined: May 2011
Posts: 291
Likes: 0
From: Wylie,TX
not yet, look like a lot of work for one person t do. going to wait till my buddy can come over and help. question, in the beginning when it died and after I got it home I took out the IPR valve and the screen was tore. I bought a replacement screen kit and put it on after checking to see if anything was around the plunger. do you think I need to replace the IPR, its only about a couple years old.