**Help Needed** BPD Upgrade--Now Running Rough
Fleet Owner
Joined: Nov 2003
Posts: 27,900
Likes: 3,617
IMO, right now it looks like a bad ICP sensor is your first priority. The volts will tell the story.
Then it is on to pulling the IPR again and checking for trash as Randy suggested (be sure and "rep" him for the help).
Also, a quick question - where did you get the parts you installed (ICP, connector, IPR)? Were they OEM parts?
Then it is on to pulling the IPR again and checking for trash as Randy suggested (be sure and "rep" him for the help).
Also, a quick question - where did you get the parts you installed (ICP, connector, IPR)? Were they OEM parts?
Thread Starter
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Mountain Pass
Joined: Oct 2015
Posts: 117
Likes: 1
Mark,
Again thanks for the help and I will be more than happy to Rep all you guys.
Replacement of ICP, IPR screen, and Pigtail were the last maintenance actions I performed prior to starting this thread. There was no difference from old to new.
I pruchased the ICP and pigtail from Diesel parts direct as suggested by Diesel Tech Ron. The IPR came from Accurate Diesel. Lastly, I have run the truck an estimated 30 mins...got her up to 176 degrees. Not gonna lie...Im a little affraid to give too much throttle bc the way she's running.
Again thanks for the help and I will be more than happy to Rep all you guys.
Replacement of ICP, IPR screen, and Pigtail were the last maintenance actions I performed prior to starting this thread. There was no difference from old to new.
I pruchased the ICP and pigtail from Diesel parts direct as suggested by Diesel Tech Ron. The IPR came from Accurate Diesel. Lastly, I have run the truck an estimated 30 mins...got her up to 176 degrees. Not gonna lie...Im a little affraid to give too much throttle bc the way she's running.
Fleet Owner
Joined: Nov 2003
Posts: 27,900
Likes: 3,617
That could be FICM related, but you originally posted that the FICM was good on both sides, so I left that one alone - besides it is next to impossible for the average owner to troubleshoot all aspects of the FICM.
You could post the MPower, VPower, and LPower voltages at KOEO, cranking, low and high idle and maybe something will show up. Do it w/ a cold engine and a hot engine.
After that, installing a known-good FICM (if you have one available) would be recommended.
The reason for focusing on the ICP is that the values are just not correct. Definitely need to resolve that problem. IMO get it resolved first, but others may feel differently.
You could post the MPower, VPower, and LPower voltages at KOEO, cranking, low and high idle and maybe something will show up. Do it w/ a cold engine and a hot engine.
After that, installing a known-good FICM (if you have one available) would be recommended.
The reason for focusing on the ICP is that the values are just not correct. Definitely need to resolve that problem. IMO get it resolved first, but others may feel differently.
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Thread Starter
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Mountain Pass
Joined: Oct 2015
Posts: 117
Likes: 1
That could be FICM related, but you originally posted that the FICM was good on both sides, so I left that one alone - besides it is next to impossible for the average owner to troubleshoot all aspects of the FICM.
You could post the MPower, VPower, and LPower voltages at KOEO, cranking, low and high idle and maybe something will show up. Do it w/ a cold engine and a hot engine.
After that, installing a known-good FICM (if you have one available) would be recommended.
The reason for focusing on the ICP is that the values are just not correct. Definitely need to resolve that problem. IMO get it resolved first, but others may feel differently.
You could post the MPower, VPower, and LPower voltages at KOEO, cranking, low and high idle and maybe something will show up. Do it w/ a cold engine and a hot engine.
After that, installing a known-good FICM (if you have one available) would be recommended.
The reason for focusing on the ICP is that the values are just not correct. Definitely need to resolve that problem. IMO get it resolved first, but others may feel differently.
Thread Starter
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Mountain Pass
Joined: Oct 2015
Posts: 117
Likes: 1
Yeah, I verified the FICM connections, but will inspect them for bent pins.
Logistics Pro
Joined: Nov 2010
Posts: 3,673
Likes: 6
It is VERY easy to bend the pins on the FICM.
I recently replaced the injectors on my truck and when I reinstalled the FICM 1 pin got bent and the truck idled rough/lacked power. A kill test on the injectors indicated #2 was dead. Removed the FICM and found a bent pin. Straightened it out and all is good
I recently replaced the injectors on my truck and when I reinstalled the FICM 1 pin got bent and the truck idled rough/lacked power. A kill test on the injectors indicated #2 was dead. Removed the FICM and found a bent pin. Straightened it out and all is good
Thread Starter
|
Mountain Pass
Joined: Oct 2015
Posts: 117
Likes: 1
That could be FICM related, but you originally posted that the FICM was good on both sides, so I left that one alone - besides it is next to impossible for the average owner to troubleshoot all aspects of the FICM.
You could post the MPower, VPower, and LPower voltages at KOEO, cranking, low and high idle and maybe something will show up. Do it w/ a cold engine and a hot engine.
After that, installing a known-good FICM (if you have one available) would be recommended.
The reason for focusing on the ICP is that the values are just not correct. Definitely need to resolve that problem. IMO get it resolved first, but others may feel differently.
You could post the MPower, VPower, and LPower voltages at KOEO, cranking, low and high idle and maybe something will show up. Do it w/ a cold engine and a hot engine.
After that, installing a known-good FICM (if you have one available) would be recommended.
The reason for focusing on the ICP is that the values are just not correct. Definitely need to resolve that problem. IMO get it resolved first, but others may feel differently.
KOEO (cold and no injector chatter)
ICP 3300 then resets to 0
ICPV 3.87 (bad!)
IPR 14.9
FMP 48
FLP 11.5-12
Sync yes
Idling (first start cold)
ICP 875
ICPV 3.8-9
FMP 48
FLP 11.5-12
IPR 32.5
Idling (operating temperature 172)
ICP 875
ICPV 3.82-9
FMP 48
FLP 11.5-12
Battey volt 13.5 all tests
Disconnected ICP:
ICP 0
ICPV 0
FMP 48
FLP 11.5-48
Still runs like crap
Thread Starter
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Mountain Pass
Joined: Oct 2015
Posts: 117
Likes: 1
It is VERY easy to bend the pins on the FICM.
I recently replaced the injectors on my truck and when I reinstalled the FICM 1 pin got bent and the truck idled rough/lacked power. A kill test on the injectors indicated #2 was dead. Removed the FICM and found a bent pin. Straightened it out and all is good
I recently replaced the injectors on my truck and when I reinstalled the FICM 1 pin got bent and the truck idled rough/lacked power. A kill test on the injectors indicated #2 was dead. Removed the FICM and found a bent pin. Straightened it out and all is good
Good point! I will be checking the pins first thing Wednesday! Thx for the info!
Fleet Owner
Joined: Nov 2003
Posts: 27,900
Likes: 3,617
Definitely sounds like the ICP sensor is bad.
The FICM voltages looks good, but still the definitive test would be a swap with a known good FICM
It looks like you MIGHT have a high pressure oil leak or an issue w/ the IPR. Do you have the IPR % duty cycle when at 172 degrees operating temp?
Since you changed the IPR I wouldn't suggest changing it again, but pulling it for an inspection AGAIN would probably be wise.
The FICM voltages looks good, but still the definitive test would be a swap with a known good FICM
It looks like you MIGHT have a high pressure oil leak or an issue w/ the IPR. Do you have the IPR % duty cycle when at 172 degrees operating temp?
Since you changed the IPR I wouldn't suggest changing it again, but pulling it for an inspection AGAIN would probably be wise.