having an issue po261 code - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 05-31-2011, 10:15 PM Thread Starter
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having an issue po261 code

the truck has been trowing the cel for like 2 weeks now randomly. its po261 cylinder#5 injector circuit low. i've cleared it a couple of times and it will come back to other random injector circuit low cylinders. i'm leaning towards the ficm. does anyone else have any ideas on this
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post #2 of 9 Old 06-01-2011, 08:05 AM
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What year is the truck? Sounds like FICM voltage problem... Any other codes like PO601 for FICM performance?
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post #3 of 9 Old 06-02-2011, 01:07 AM Thread Starter
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truck is a 2006. i havent seen the po601 code yet
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post #4 of 9 Old 06-02-2011, 06:11 AM
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Sounds like FICM problem check voltage
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post #5 of 9 Old 06-02-2011, 10:09 PM Thread Starter
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i checked the voltage cold cycled the key i got 48v but it wouldn't hold 48v. it was steadly declining in voltage down into the 20s. not sure if thats normal or not.
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post #6 of 9 Old 06-03-2011, 02:30 AM
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post #7 of 9 Old 06-03-2011, 05:56 AM
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Nope should hold steady at 47-48 volts. If it drops to 20 that is most likely why its setting codes. Should be hard to start cold and maybe even run a little crappy cold. They can be repaired. I thought I heard on here that BulletProof is coming out with a FICM power supply soon.
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post #8 of 9 Old 06-04-2011, 04:32 PM Thread Starter
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did another test on the ficm and it didn't drop under 47v. wtf now. this morning on start up ran like **** and POURED blk smoke for like a minuite or so
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post #9 of 9 Old 06-04-2011, 05:17 PM
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bad ficm for sure
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