ok been reading a lot on here about this code and have tried a few fixes but nothing has fixed the problem yet. i have an 06 chevy 2500hd lbz and bullydog gt tuner have installed ppe race valve ,new fuel filter and new wif sensor but still throwing the code when in extreme mode on the tuner and under full throttle any ideas?
Your programmer is asking for more fuel than your fuel system set up can supply.
Potential fixes: Suggest first off to do a Transgo Jr to the Ally. good insurance..cheap mod you can do yourself. Look in the DIY sub forum here. Transgo is good for about 500 RWHP. Any more than that and you need to get a built trans.
For more fuel supply:
Add a single or twin lift pumps and set at approx 10-12psi.
I would also make damned sure the fuel filter is on t i g h t as well as the WIF sensor
i no lift pump set ups are the way to go but for right now i am looking into getting other stuff and dont got the money for lift pumps. will a ppe race valve and shim kit work? i have heard they will but not sure
If you are having a low fuel rail pressure code you may try it but did not work for me.And I'm like you and don't really want to spend a lot on a lift pump but I think that's my last resort. But definetly try the valve first it's cheap and easy.
the shim kit increases the pressure the the fprv releases at the race plug replaces the pressure valve with a plug so no pressure gets released either one will work with what u have done the shim kit should work
I would go with the entire valve it's one piece and you don't have to mess with all the little shims and o rings.
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