i have an 06 6.0 the icp psi is 1575 the ficm is 48.5 volts it has fuel fresh oil and filter still wont start i shut it off got back in 5 min later and crank but wont start that was three days ago been reading and reading i have tried everything that i know of i have a snap on solus pro and no code either would appreciate any help it has 134k 5in exhuast and cold air intak

 

If you have ICP pressure, fuel, ficm is firing,then the problem is air. Check the butterfy valve under the intake elbo, if it sticks closed then the motor won't start, if that is OK then pull the air filter assembly and make sure the turbo spins over, if it is stuck it won't start.

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sorry, just realised it is an 06 and won't have the butterfly, check the turbo.

 

the turbo spins freely im stuck

 

Check your egr valve position actual through your scanner it should be at zero.

 

You say ICP psi is 1575, is that desired or actual? Does it jump right to 1575, where does it start? The truck needs 525psi of actual ICP to have the PCM even say "go." What is desired ICP? Do you have FICM SYNC?

 

Yes i have ficm sync i put new egr on it fresh oil change and i have a solus pro scanner the icp jumps to 1575 as soon as you start cranking im beat i have no clue

 

Try unplugging the icp and staying it. It shouldn't jump right up like that. Should build slowly and get that high if its not starting.

Again though, really need to know if that's actual ICP or desired ICP

 

Ok I'll try that thanks for the help

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Ok it was disired icp at 1575 I unplugged the icp and then it climbed to the same ? Does this mean hpop

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?..

 

More then likely it is going to be a bad STC fitting on the pump or your standpipes or dummy plugs, all of them should be updated because they all can and will fail at some point. You are going to have to pull turbo so you ca get to the pump cover, once that is off you normally can see if the STC fitting is bad. If you have the dittinfs an air test will tell you where the leak is.

 

Thanks for the help it was the sct fitting