No power after s475 install and retune

[zf>allison]

Ok I just installed my s475 and having issues. No and i mean no power and no codes. I made a custom intake it might be the maf. at an idle it was reading 24.3 g\s don't know if that's my issue. I checked it with the to torque app. My friends stock intake lbz at idle was reading 44.5 g\s. Don't know what it should be or if this could cause this kind of lose in power. My intake manifold pressure read 14.4 psi at idle. Id be scared to pull out in traffic. Any other ideas or tips of what to check. Only code is glow plug circuit a and it doesn't throw a code and that's because there not hooked up yet. I just figure it's my best guess to point to the maf or map

 

[mike diesel]

Maf. An improperly tuned maf will make a truck undrivable. I experienced the same when I built my 5" intake and didn't get it rescaled. Couldn't not even drive the truck.

 

[zf>allison]

Maf. An improperly tuned maf will make a truck undrivable. I experienced the same when I built my 5" intake and didn't get it rescaled. Couldn't not even drive the truck.

Ok lol that's a relief kind of. Does anyone know what it should read at idle?

 

[DIESELMAFIAPER.LB7]

38ish can you email your tune I'll adjust the maf for you if you'd like

 

[Harbin_22]

MAF in the right direction?

 

[Chevy1925]

MAF in the right direction?

Sounds like that's the issue

 

[zf>allison]

No way to email it. Thanks that would have been sweet. This is a link to my install thread this is looking in from the filter side http://www.duramaxdiesels.com/forum/showthread.php?t=61490&page=4

 

[zf>allison]

Better yet

 

[zf>allison]

That's looking in from the filter side. That's rtv on it. I figured the wires should be exposed to the incoming air?

 

[paint94979]

Sounds like that's the issue

Ah shit I did that right before Speedworld

 

[Chevy1925]

That's looking in from the filter side. That's rtv on it. I figured the wires should be exposed to the incoming air?

Is the maf plug facing the coolant bottle or the core support?

 

[zf>allison]

The core support but it's on the bottom of the tube

 

[Chevy1925]

Your good then. Who adjusted the maf in the tune?

 

[zf>allison]

I mentioned it in my other thread and not this one it's tuned by duramax tuner. I have no way to modified or email tunes. That's why I was looking for the idle range of the maf. So i could tell them and they can adjust it and send me a new ecm

 

[zf>allison]

I need an autocal lol

 

[Chevy1925]

And you told him what size intake to tune for correct?

 

[zf>allison]

And you told him what size intake to tune for correct?

Yep I wrote a note and taped it to the ecm with all my requests. I said 5 inch intake ( rescale maf ) just like that. But I hear there is alot of different intakes especially one I made that require a few adjustments to get it right

 

[N2BRK]

are you near South Jersey? Or maybe near someone else that has a v2 and can help you?

 

[zf>allison]

I'm in elsberry mo near troy Wentzville st Louis. I really love to buy one if I could at the moment

 

[zf>allison]

I'll call duramax tuner tomorrow and see what they think