What causes this

[wdino73]

Ok, truck has no power, rpm's are flat, boost only 17psi, no codes, no leaks whats going on, rail pressure is good, feels like something is holding it back,

I hope I'm not a dumbass an this is one of them clogged fuel filter issues, I just changed it 3 weeks ago, and changed my fass filters around 3500miles ago, I try to get may fuel at the same place.

Any educated opinion is welcome an appreciated. :thumb:

 

[jlawles2]

You are holding rail pressure, so fuel filter should not be an issue. Are you running a stock tune? Only 17 PSI boost? That sounds low if not on a stock tune.

How about T-case issues? Check the fluid to see if there is any. Also have you changed the trans filter lately?

 

[wdino73]

No, this is a race tune, Not a Stock Truck, New tranny in Nov, I've changed the spin on 2 times since, don't understand the Tcase though, something isn't it fuel right, it only fuels at 89mm3, when running right it fuels at 120mm3

 

[sweetdiesel]

89mm3 is a capped fuel reading log main fuel flow rate 2!!!!

 

[wdino73]

so I should log the main fuel flow rate 2 only?? I logged the duramax imperial pids, an according to that log the peak flow is 99mm3, it did flow at 120mm3. the truck runs like shit, It's not giving me any codes so I can see what's going on, It want talk to me Simon, maybe it's mad at me, I working on another truck for a guy, it's pulled in the bay that my truck aways parks in. LOL Jealous bitch:rofl:

 

[wdino73]

Oh, I don't know if this matters but the truck was down for a few days with a fuel leak long story, after I fixed the leak yesterday, I hosed the engine off with a water hose, could that have caused this????

 

[wdino73]

Ok got 2 codes this morning I guess she's not mad at me no more,
p01010 maf, I changed it out with a good one. still getting code
p1781 tranny control module (TCM) mil reguest. wtf???

 

[jlawles2]

The t-case thing is about the pump rub. IF the pump rubs a hole in the case, it can bind the case and cause excessive power rob when the bushings and bearings get dry and start to become 1 large piece of metal.

 

[wdino73]

The t-case thing is about the pump rub. IF the pump rubs a hole in the case, it can bind the case and cause excessive power rob when the bushings and bearings get dry and start to become 1 large piece of metal.

I rebuilt the t-case in november, its something to do with the maf sensor, I've got voltage to the plug an the fuse is good

 

[wdino73]

Now I'm getting a P1229 code #3 injector output circuit. LOL

 

[sweetdiesel]

Perhaps you got some water in there


I would. Spray your connections with contact cleaner

 

[JMK777]

Check your batterys charge and connectinos . your mass air sensor and connector
I had 1781's due to a shot battery and 1010 for un connected mass air

 

[wdino73]

yeah, I checked them, I've not checked my batteries but they should be good recently replaced them, Thanks for your help

 

[SmokeShow]

What's the verdict bud?!?!

 

[wdino73]

Don't know yet I think that maybe something wrong with the turbo, like maybe the wastegate flap cracked or broken??? I'll check it tomorrow. thanks for asking.

 

[SmokeShow]

I thought u took it to GM?

 

[wdino73]

Yeah, I did they are stumped, I was reading a thread about that, so I'm going to go check it in the morning