Skim/no start help!!! - Competition Diesel.Com

Poulina · 02-12-2017, 09:08 PM

2008 6.7 G56 manual truck

Swapped in a 06-7 5.9 ECM (849CMB) with a fleece conversion harness (adapts the 6.7 C1 & C2 engine harnesses to use the 5.9 ecm)

Disassembled everything for head gasket/head work

Used a brand new 06-07 5.9 C1 harness (injector/engine controls) to get rid of all the clutter involved with the the fleece harness and 6.7 C1 harness

Long story short, everything is back together, went to crank it. Ran for 3 seconds then shut down, repeated this a few times. Now all it will do is crank. Chalking it up as a theft/skim module issue?? Never dealt with anything like this.

RP is more than adequate, lift pump pressure is there....key fob still locks and unlocks the truck. No security lights in the cab.

Any help at all would be much appreciated!!! Thanks!!

stubz616 · 02-12-2017, 09:12 PM

With other cars I've worked on, so I don't know if it's the same, you sometimes have to do a specific task with the key to disarm the PATS or theft system. With jeeps you can lock and unlock with the fob all day and it doesn't help but if you lock then unlock the hatch with the key it fixes it.
Try locking and unlocking with the key in the door itself with the alarm armed and if that doesn't work try with it already disarmed. Hope this helps

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stubz616 · 02-12-2017, 09:23 PM

I found another procedure to try too.
1. Leave battery connected
2. Remove PCM/Skim fuse
3. Buckle drivers seatbelt
4. Insert key in ignition
5. Turn key to crank (engine will not crank) hold key in crank position until you hear two chimes.
6. Replace pcm/skin fuse

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stubz616 · 02-12-2017, 09:24 PM

If those don't work. Try another key if you have one to see if it's the key losing its programming. It can happen sometimes if it goes near a magnet or something

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Poulina · 02-12-2017, 09:25 PM

Thanks for the reply

Where did you find that procedure? I'll definitely give it a try, nothing else to start with...

stubz616 · 02-13-2017, 02:07 AM

Quote:

Originally Posted by Poulina

Thanks for the reply

Where did you find that procedure? I'll definitely give it a try, nothing else to start with...

It was just online. Sounded like the kid writing it actually had a brain though which is hard to come by these days. Lol

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easymon · 02-13-2017, 01:38 PM

Sounds like security in ECM program not set right.

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Tobin · 02-13-2017, 02:06 PM

Just have your tune flashed to eliminate the anti-theft.

Poulina · 02-13-2017, 02:40 PM

When I try to communicate with the ecm via my autocal it gives me a few EFI Live error codes.

When I try to look up DTC's it gives me a $0280 (no communication with vehicle)

When I try to reflash in the tune it gives me a $0549

Not sure where to even start

Dom_c13b · 02-13-2017, 03:17 PM

Was the tune on the 849 updated for your truck?

Poulina · 02-13-2017, 11:57 PM

yes everything was working before i swapped in a 5.9 C1 harness, going to try another 6.7 harness and hope that is my problem

02-12-2017, 09:08 PM	#1
Poulina Name: Poulina Title: Too Much Time Status: Not Here Join Date: Dec 2015 Location: Norcal Member`s Gallery Posts: 795	Skim/no start help!!! 2008 6.7 G56 manual truck Swapped in a 06-7 5.9 ECM (849CMB) with a fleece conversion harness (adapts the 6.7 C1 & C2 engine harnesses to use the 5.9 ecm) Disassembled everything for head gasket/head work Used a brand new 06-07 5.9 C1 harness (injector/engine controls) to get rid of all the clutter involved with the the fleece harness and 6.7 C1 harness Long story short, everything is back together, went to crank it. Ran for 3 seconds then shut down, repeated this a few times. Now all it will do is crank. Chalking it up as a theft/skim module issue?? Never dealt with anything like this. RP is more than adequate, lift pump pressure is there....key fob still locks and unlocks the truck. No security lights in the cab. Any help at all would be much appreciated!!! Thanks!! __________________ 2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle

02-12-2017, 09:12 PM	#2
stubz616 Name: stubz616 Title: Too Much Time Status: Not Here Join Date: Oct 2008 Location: Brewster, MA Member`s Gallery Posts: 1,327	With other cars I've worked on, so I don't know if it's the same, you sometimes have to do a specific task with the key to disarm the PATS or theft system. With jeeps you can lock and unlock with the fob all day and it doesn't help but if you lock then unlock the hatch with the key it fixes it. Try locking and unlocking with the key in the door itself with the alarm armed and if that doesn't work try with it already disarmed. Hope this helps Sent from my iPhone using Tapatalk __________________ 95 RCLB Farrell Diesel Stage 5 13mm pump,Hamilton Springs,Retainers,Pushrods,Fluidampr,Steed Speed,S467.7/soon to be S488 atmo,Full Billet Trans,DPC 4 disk TC,BD Pressure Loc,Haley Speed 5x.022s,Diesel Pros Custom Cam,O-Ringed,.010 over HG,A1000,Hellman sump,625 Studs, 30*

02-12-2017, 09:23 PM	#3
stubz616 Name: stubz616 Title: Too Much Time Status: Not Here Join Date: Oct 2008 Location: Brewster, MA Member`s Gallery Posts: 1,327	I found another procedure to try too. 1. Leave battery connected 2. Remove PCM/Skim fuse 3. Buckle drivers seatbelt 4. Insert key in ignition 5. Turn key to crank (engine will not crank) hold key in crank position until you hear two chimes. 6. Replace pcm/skin fuse Sent from my iPhone using Tapatalk __________________ 95 RCLB Farrell Diesel Stage 5 13mm pump,Hamilton Springs,Retainers,Pushrods,Fluidampr,Steed Speed,S467.7/soon to be S488 atmo,Full Billet Trans,DPC 4 disk TC,BD Pressure Loc,Haley Speed 5x.022s,Diesel Pros Custom Cam,O-Ringed,.010 over HG,A1000,Hellman sump,625 Studs, 30*

02-12-2017, 09:24 PM	#4
stubz616 Name: stubz616 Title: Too Much Time Status: Not Here Join Date: Oct 2008 Location: Brewster, MA Member`s Gallery Posts: 1,327	If those don't work. Try another key if you have one to see if it's the key losing its programming. It can happen sometimes if it goes near a magnet or something Sent from my iPhone using Tapatalk __________________ 95 RCLB Farrell Diesel Stage 5 13mm pump,Hamilton Springs,Retainers,Pushrods,Fluidampr,Steed Speed,S467.7/soon to be S488 atmo,Full Billet Trans,DPC 4 disk TC,BD Pressure Loc,Haley Speed 5x.022s,Diesel Pros Custom Cam,O-Ringed,.010 over HG,A1000,Hellman sump,625 Studs, 30*

02-12-2017, 09:25 PM	#5
Poulina Name: Poulina Title: Too Much Time Status: Not Here Join Date: Dec 2015 Location: Norcal Member`s Gallery Posts: 795	Thanks for the reply Where did you find that procedure? I'll definitely give it a try, nothing else to start with... __________________ 2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle

02-13-2017, 01:38 PM	#7
easymon Name: easymon Title: diesel nut Status: Not Here Join Date: Feb 2011 Location: minnesota Member`s Gallery Posts: 63	Sounds like security in ECM program not set right. Sent from my XT1585 using Tapatalk __________________ 06 dodge g56 valair dd organic EFI tuned by Zack starlite , tunes from Les ,Anarchy banks intercooler ,high ram

02-13-2017, 02:06 PM	#8
Tobin Name: Tobin Title: 5.7 IDI Powaa! Status: Not Here Join Date: Oct 2008 Location: Oviedo, FL Member`s Gallery Posts: 1,506	Just have your tune flashed to eliminate the anti-theft. __________________ 2006 Dodge 2500 QCLB 4x4 Goerend 48RE 1977 F250 RCLB 4x4 "High Boy" 12 valve, 180 pump, 5x.014, S363/S475, Goerend 47RH, NP271, 2007 D60/Sterling 10.5, 40" Toyo MTs

02-13-2017, 02:40 PM	#9
Poulina Name: Poulina Title: Too Much Time Status: Not Here Join Date: Dec 2015 Location: Norcal Member`s Gallery Posts: 795	When I try to communicate with the ecm via my autocal it gives me a few EFI Live error codes. When I try to look up DTC's it gives me a $0280 (no communication with vehicle) When I try to reflash in the tune it gives me a $0549 Not sure where to even start __________________ 2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle

02-13-2017, 03:17 PM	#10
Dom_c13b Name: Dom_c13b Title: Diesel Enthusiast Status: Not Here Join Date: Oct 2012 Location: Freeport, Maine Member`s Gallery Posts: 125	Was the tune on the 849 updated for your truck? __________________ 06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc.. TenacityTuning@Yahoo.com facebook.com/TenacityTuning

02-13-2017, 11:57 PM	#11
Poulina Name: Poulina Title: Too Much Time Status: Not Here Join Date: Dec 2015 Location: Norcal Member`s Gallery Posts: 795	yes everything was working before i swapped in a 5.9 C1 harness, going to try another 6.7 harness and hope that is my problem __________________ 2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle