Replaced Injector, but still get a code - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 38 (permalink) Old 06-05-2011, 02:33 AM Thread Starter
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Replaced Injector, but still get a code

Had an injector #1 reading P0263 Circuit contribution/Balance Fault.

Replaced injector. Truck ran fine for a day, then it started to idle and run really rough again.

Fuel pressure is 60 psi.

New fuel filter.

Just changed oil.

Oil level is good.

FICM is reading 48 v on startup when cold.

What could be the issue? I'm not buying more injectors. I may just sell the truck and get out of it. Unless someone can give me any ideas for tracking down why this would happen. I checked the injector electrical connection and it was fine, no chaffing. Is there a way to check it with a multi-meter too?

Please help!
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post #2 of 38 (permalink) Old 06-05-2011, 02:59 AM
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Re: Replaced Injector, but still get a code

youre giving up that easy?
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post #3 of 38 (permalink) Old 06-05-2011, 03:09 AM Thread Starter
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Re: Replaced Injector, but still get a code

I have had about enough of this truck. I have dumped more money than I care to admit too. After just installing a new motor for $15,000 and thinking I had it good to go. Here it goes again. The #1 injector was fine for about 2 weeks and then it started running rough. Finely got a new injector from Innovative diesel, installed it this Thursday. Friday it drove fine all day. Got home from work and as I pulled into the drive way it started to idle rough again. Turned it off. Restarted 5 minutes later and it started to lope really bad.

Same thing today.

Should I just swap out the FICM? Maybe I can rip out the FICM and test it tomorrow.
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post #4 of 38 (permalink) Old 06-05-2011, 03:26 AM Thread Starter
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Re: Replaced Injector, but still get a code

I did the injector buzz test. It repeated itself 3 times. All three times I only heard 5 injectors.

I also have a couple glow plug codes P0673, and P0675

Does that narrow it down to the FICM more?
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post #5 of 38 (permalink) Old 06-05-2011, 04:27 AM
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Re: Replaced Injector, but still get a code

im sorry about youre truck i hope you figure it out i remember when mine was miss fireing what happened was where the top of the injector plugs into the pig tail the conections inside were pushed back inside the pig tail making it conect then disconect while driving so it would miss fire then not throw a coad. i will try to get a pic up. so i can show you what i mean. and may i ask how you did you buzz test becaus the only way i was able to test it was to hook up this snap on computer and do it. but icant remeber what it was colled mobe? something like that and no one here knows what im talking about.
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post #6 of 38 (permalink) Old 06-05-2011, 04:29 AM
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Re: Replaced Injector, but still get a code

[IMG][/IMG]

this is where the pig tails is conected to the injector and as you can see one of them was pushed back inside. i used a lil pic set to pull it back and ran perfect
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post #7 of 38 (permalink) Old 06-05-2011, 04:31 AM Thread Starter
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Re: Replaced Injector, but still get a code

I used Auto Enginuity.

It showed FICM voltage @ 48v-48.5V

It's buzz test only had 5 injectors buzz.

I checked the injector electrical connection and it was on ok and wasn't loose. I followed the wires back into the main injector harness and tried to find a chaff point, but didn't see any.
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post #8 of 38 (permalink) Old 06-05-2011, 04:32 AM Thread Starter
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Re: Replaced Injector, but still get a code

Thanks for the picture. I checked that to and the pins seem fine.

I'm thinking it has to be electrical if a brand new injector did the same code as the previous injector within 8 hrs.
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post #9 of 38 (permalink) Old 06-05-2011, 04:49 AM
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Re: Replaced Injector, but still get a code

do you know anyone with a good ficm you could try?
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post #10 of 38 (permalink) Old 06-05-2011, 05:30 AM Thread Starter
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Re: Replaced Injector, but still get a code

no, I have a brother in law that has a 07 Amarillo but I doubt he'd let me try his lol

How much is a FICM to swap it out? THe FICM was just replaced last April. They did a partial repair or something, not the whole FICM.

Batteries are a couple months old and voltage on them is good.

So because FICM is newer, I thought maybe that means a wiring issue, not FICM?
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