on my 06 with the commander at idle is at 6psi going down the road is 5-6psi then wot 0psi
which suck because i have a smarty also and i cant even play with it.

 

fuel rail I belive it is electronic if that matters

 

theres a setting in the commander that would make it think you have 26psi when its relly 0-1. unless you have a aftermarket lift pump, go through the commander settings and make sure its on the 0-40 not the 0-100 in the fuel sender settings. on mine i was playing with the settings and at idle it was 7-8ish then when i put it on the 100psi setting it was 30ish.

 

Ya need to look into this bad

it dont take much bombin at all with a chip or programer and the fuel pressure will be zero or close to it ..............not good

 

Yes, you need to be sure you are set vto the corrent pressure range. I would also verify the readings with another gauge.

I can't beleive how many AirDogs we are shipping right now to fix this very complaint..

Dave

 

With pressures like that something is really wrong. New trucks should only see 4 to 9 (11 if you have a big pump behind it like a FASS or AD). Something is up for sure.

Anyway, hook up your FP gauge to the inlet side of the CP3 injection pump and you should be good to go. The filters should be checked just to be sure and so on but sounds to me like there is nothing but air in the line to be honest.

 

I must have been wronge on the pressure it must have only been 26-25 that is rail pressure I hope it is only bad fuel or filter

 

I don't know what your gauge says and where it is hooked up but rail pressure on a stock truck would be somewhere around 25,000 psi. With pressure boxes and other programmers you can push it a bit higgher to safely around 28,000 psi if i remember correct. Anything above that and something is up, is wearing out prematurely or is damaged somewhere.

Check the lift pump in your tank for functionability and then check that pressure. After that change the fuel filter(s) and then get the truck scanned to determine cause of high(er) rail pressure.