cylinder contribution

[brscott38]

Today I happened to run a code scan on my truck and pulled one code it was #5 cylinder contribution. I have no cel and the truck seems to run great and starts with no problem. I hauled 6000# couple days ago without any issue. Is this an injector on its way out or what?

[southend]

Could be injector, or ficm......you need a monitor like edge insight.

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[brscott38]

I have the banks with pda used only for monitoring and sct for tuning. Will the edge tell me much more?

[southend]

Originally Posted by brscott38

I have the banks with pda used only for monitoring and sct for tuning. Will the edge tell me much more?

Maybe, read this....Write Up: Monitoring the 6.0L PSD.

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[harlo]

How many miles on your oil? I ONCE tried going extended intervals on oil changes and at a little over 10,000 miles on the oil, even with samples coming back good I got that code so I changed the oil and added some RevX and have never got the code since. That was about a year ago. Not sure if that's what caused it or not. Just a thought..

[brscott38]

the t6 oil has only 1,000 miles on it. I was thinking of trying rev x

[southend]

You will only notice a difference with rev-x, for rough start and idle when cold. You really need to monitor battery voltage and ficm. Could also be logic side of ficm board, or maybe injector oil/fuel orings going bad.

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[southend]

Here check out my injector issue....Why you shouldn't drive around with injector codes!

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[brscott38]

ok thanks im abt to do 2hr trip ill keep an eye on my volts. Whats the difference in a code with the cel on and a code with no light?

[southend]

Ahh, idk, some sr master tech here could tell ya. Maybe limp mode with light on, or limp mode at one time.

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