AT IT AGAIN
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
Just spoke to a guy that does diesel work and he said go back to basics. Start at fuel delivery system. Check pressure from pump to bowl. So guess got to find a gauge that will allow for that hook-up. That if all is checking out electrically as in resistance. Then fuel delivery might or could cause this due to injectors not getting correct flow and could throw a code. At this point that is the only thing I haven't touched..
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,346
Likes: 5,941
From: Lake Hartwell, GA
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
Taken from the 7.3L PSD Tech Folder.
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Any WOG(water,oil,gas) gauge will work. Then it's just a hose barb for connecting gauge to hose and clamps so nothing leaks. Any local auto parts store or farm and ranch supply store should have everything you need.
It's a Van Gogh
Joined: Feb 2010
Posts: 7,802
Likes: 1,333
From: Elk Grove, CA
I can't see how a fuel issue or bad injectors will throw a P1316, that's electric and IDM issues.
Ever check if the 4 pin harness rubbing and shorting on the driver side valve cover? That is a classic for intermittent electric gremlins.
The green GPCM connector in the pic above looks like it has a burnt pin.
Ever check if the 4 pin harness rubbing and shorting on the driver side valve cover? That is a classic for intermittent electric gremlins.
The green GPCM connector in the pic above looks like it has a burnt pin.
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
Just replaced the IDM and ohms tested from IDM to injectors 3.3 ohms on all. After cleaning the P1316 have done buzz test, demand test and all the others that FORSCAN can do and will get no errors. But as soon as I go to restart my truck the P1316 reappears.
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
I can't see how a fuel issue or bad injectors will throw a P1316, that's electric and IDM issues.
Ever check if the 4 pin harness rubbing and shorting on the driver side valve cover? That is a classic for intermittent electric gremlins.
The green GPCM connector in the pic above looks like it has a burnt pin.
Ever check if the 4 pin harness rubbing and shorting on the driver side valve cover? That is a classic for intermittent electric gremlins.
The green GPCM connector in the pic above looks like it has a burnt pin.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
Please break down your injector "rebuild" for me.
Was new outer orings(were them shot?) and solenoid shimming all that you did?If so,those sticks needs some love.
Does Tc lockup multiply your vibration?
If so,injectors aren't performing like them should be.
Was new outer orings(were them shot?) and solenoid shimming all that you did?If so,those sticks needs some love.
Does Tc lockup multiply your vibration?
If so,injectors aren't performing like them should be.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Did you do the $0.52 mod? Could be loose UVCH on passenger side.
Injectors are suspect. Improper shimming can cause those codes.
Or, it could be IDM.
That GPCM pigtail will need to be replaced. I strongly recommend removing that harness and changing pigtail on bench. I used an International ‘repair kit’ on a couple of trucks, but it’s been awhile. Not sure if that is still an option.
Injectors are suspect. Improper shimming can cause those codes.
Or, it could be IDM.
That GPCM pigtail will need to be replaced. I strongly recommend removing that harness and changing pigtail on bench. I used an International ‘repair kit’ on a couple of trucks, but it’s been awhile. Not sure if that is still an option.
Where did your ‘new’ IDM come from? I recently went through (3) to find one that didn’t throw P1316.
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
Got my IDM from Diesel Power Products.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,346
Likes: 5,941
From: Lake Hartwell, GA
I haven't looked, so I cannot say where they get their IDM's from. There are several resellers out there that turn sub-par work. I am not saying you bought one of these, but there are very few places I would purchase an IDM from and they are below.
- Diesel Tech Chattanooga - https://www.dieseltechchatt.com/coll...s/7-3-products
- Riffraff - https://www.riffraffdiesel.com/idm-7...-module-94-03/
- RAE - https://www.remanautoelectronics.com...3L-IDM-HP.aspx
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
Thread Starter
|
Junior User
Joined: Jan 2021
Posts: 94
Likes: 0
From: Moss Point, MS
I haven't looked, so I cannot say where they get their IDM's from. There are several resellers out there that turn sub-par work. I am not saying you bought one of these, but there are very few places I would purchase an IDM from and they are below.
- Diesel Tech Chattanooga - https://www.dieseltechchatt.com/coll...s/7-3-products
- Riffraff - https://www.riffraffdiesel.com/idm-7...-module-94-03/
- RAE - https://www.remanautoelectronics.com...3L-IDM-HP.aspx