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Old 02-14-2012, 08:48 AM
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what are these codes??

checked for trouble codes with my edge insight today and it came up with two codes, first one is p0266 and second is p0611. the insight told me that p0266 is Cylinder 2 Contribution/Balance, and p0611 is Fuel Injector Control Module Performance. can anyone expand upon these for me? thanks
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Old 02-18-2012, 10:20 AM
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It would help to know what year model truck you have.

p0266 means cylinder 2 is not contributing as strong as the other 7 cylinders.

p0611 for say an 03 year truck means you more than likely will have to replace the FICM
for an 05 year truck it means you have low input voltage to the FICM
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Old 02-18-2012, 11:31 AM
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start with the ficm voltage test,if that pans out, then rescan,your injector code may go away,or may remain,usually a balance code is a wiped injector and needs torn down and replaced. but bad ficm voltage can sometimes cause that, with weak voltage to that injector. that's why you need to check ficm and fuel pressure,before you panic and replace anything.
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Old 02-18-2012, 11:32 AM
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also,IMO, it is best to scan when the engine is cold,for injector balance codes.
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Old 02-20-2012, 12:25 PM
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the truck is a 2006 f250, i have the insight which will monitor ficm voltage and the lowest ive seen it go is 43 volts when the truck is cold and im driving down the road under 1/2 throttle. Also the truck has been blowing some blue smoke when cold
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Old 02-20-2012, 01:12 PM
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Well they say your ficm voltage should never drop below 45v and 48 is where a healthy ficm should be at, 43 is pretty close, but may not be enough, blue smoke isn't good, i would send the ficm in and have it rebuilt, because in my little mind, it would bother me too much that it is going south, if you can solder or have a buddy that can, do a search on here, there is a good instructional thread on fixing your own ficm,i would also check fuel pressure, as that will f@$k with injectors too. I wouldnt drive it til i figured it out, you dont want to do an injector if you can help it, been there-done that.
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Old 02-21-2012, 03:38 AM
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This site has a wealth of info in it's archives, by doing a quick search on ficm voltage, i pulled up alot of info , in which psd techs and others state that 43 is too low, i scanned mine yesterday and i show 48.75 volts, so i would say mine is healthy and yours is below the acceptable lower parameter of 45v, i would start there, and make sure you have minimum 45psi , preferable 55-60 psi fuel pressure @idle.
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