Bad injector vs. faulty FICM - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 11-26-2012, 10:30 AM Thread Starter
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Bad injector vs. faulty FICM

My first problem started about 1 1/2 years ago. I had a trouble code for #4 injector contribution problem. After reading figured I had an injector going bad. Had a diesel repair company quote around $2000.00 to change #'s 2,4,6 and 8 injectors. So I decided to try the synthetic/Rev-x concoction and seemed to clear it up for a while but did not get back to 15-17 mpg I had been getting. My truck started running rough again this summer so I tried Rev-x again with no change. Truck was still starting rough at lows in the 60's. Then about two months ago both batteries went bad and the condition worsened. Changed batteries no change. Three weeks ago FICM voltage dropped below 44 for the first time and continually got worse going below 36 under high throttle. I was getting a check engine light with injector contribution codes for every injector. Ordered a refurbished FICM from Ed's FICM Repair and installed it last weekend and truck is running with no starting issues, quieter and getting at least 3 more mpg's. My question is would it not be a cheap ($150.00-200.00) troubleshoot to change the FICM first and see if that fixes the injector problem, which I thought I had, rather than spend the money to change injectors first. I have not heard of a way to check the FICM other than when it starts dropping voltage. Or could there still be issues with the injectors? Thanks for any input.

2006 F-350 6.0 Fx4
EGR delete
Dieselsite Coolant bypass filter
Edge CTS Monitor
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Rotella T-6
Updated STC HPOP Fitting
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Atlas 40 FICM tune from Ed
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post #2 of 7 Old 11-26-2012, 12:42 PM
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Originally Posted by 05 Pstroker View Post
My first problem started about 1 1/2 years ago. I had a trouble code for #4 injector contribution problem. After reading figured I had an injector going bad. Had a diesel repair company quote around $2000.00 to change #'s 2,4,6 and 8 injectors. So I decided to try the synthetic/Rev-x concoction and seemed to clear it up for a while but did not get back to 15-17 mpg I had been getting. My truck started running rough again this summer so I tried Rev-x again with no change. Truck was still starting rough at lows in the 60's. Then about two months ago both batteries went bad and the condition worsened. Changed batteries no change. Three weeks ago FICM voltage dropped below 44 for the first time and continually got worse going below 36 under high throttle. I was getting a check engine light with injector contribution codes for every injector. Ordered a refurbished FICM from Ed's FICM Repair and installed it last weekend and truck is running with no starting issues, quieter and getting at least 3 more mpg's. My question is would it not be a cheap ($150.00-200.00) troubleshoot to change the FICM first and see if that fixes the injector problem, which I thought I had, rather than spend the money to change injectors first. I have not heard of a way to check the FICM other than when it starts dropping voltage. Or could there still be issues with the injectors? Thanks for any input.
Most of the time, from what you describe, and watching battery, ficm koeo cold, koec cold, and koer cold. You can see the ficm voltage at some point below 46v, it's done. Was you watching the ficm, and battert prior to injector replacement?

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post #3 of 7 Old 11-26-2012, 12:57 PM Thread Starter
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Quote:
Originally Posted by southend View Post
Most of the time, from what you describe, and watching battery, ficm koeo cold, koec cold, and koer cold. You can see the ficm voltage at some point below 46v, it's done. Was you watching the ficm, and battert prior to injector replacement?

Sent from my phone that somebody didn't help me get.
That is what I am getting at. I never had to change injectors. Battery voltage never got below 12.9 and ficm stayed at 46-48 until the batteries went bad so I had the batteries tested and replaced and two months later the problem escalated..

2006 F-350 6.0 Fx4
EGR delete
Dieselsite Coolant bypass filter
Edge CTS Monitor
Blue spring
Rotella T-6
Updated STC HPOP Fitting
SCT Tuner w/ Matt's tunes & Chris
Atlas 40 FICM tune from Ed
212,000 miles
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post #4 of 7 Old 11-26-2012, 02:16 PM
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Not trying to hi jack the thread but what can I use to monitor my FICM? Or is the only way to monitor using a volt meter?
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post #5 of 7 Old 11-26-2012, 02:32 PM Thread Starter
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Not trying to hi jack the thread but what can I use to monitor my FICM? Or is the only way to monitor using a volt meter?
I have an Edge CTS and I "think" that is the only one that monitors the FICM voltage.

2006 F-350 6.0 Fx4
EGR delete
Dieselsite Coolant bypass filter
Edge CTS Monitor
Blue spring
Rotella T-6
Updated STC HPOP Fitting
SCT Tuner w/ Matt's tunes & Chris
Atlas 40 FICM tune from Ed
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post #6 of 7 Old 11-26-2012, 03:01 PM
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Quote:
Originally Posted by 1bad281 View Post
Not trying to hi jack the thread but what can I use to monitor my FICM? Or is the only way to monitor using a volt meter?
Edge Insight CS/CTS, ScangaugeII, DashBoss for iOS devices, Torque app for Android devices. Also Gryphon FICM tuner, and Autoenginuty.


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post #7 of 7 Old 11-26-2012, 04:20 PM
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And livewire ts

03 cclb dually,6.0,arp studs,bpd oil cooler,bpd 6 phase ficm,bpd water pump,bpd all aluminum cac,all aluminum radiator,amsoil bypass oil filter,ipr high flow coolant filter,egr delete,livewire ts tuned by Vivian & tony,php ficm tuner,dc power 300-spx,Detroit trutrac,6" dual side pipes,07 front end,custom front bumper,shaved badges,led button roof lights,08+ mirrors,12 tailgate,13 rear bumper,13 tail lights,dropped I beams,custom rear 4 link w/bags,k5la train horn,24" alcoa's.
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