Poping with smarty

[Shambo]

Anyone know why when I launch power breaking I get a popping sound out of the exhaust? It has happened on level 7,and 9.

 

[Shambo]

Anyone have this happen?

 

[WUnderwood]

You are probably draining the rail

 

[duck_04]

You are probably draining the rail

this.

what are the details on your fuel system?

 

[Shambo]

It only happens right at the start then kickes in? If I was draining the rail wouldn't it keep doing it?

 

[dangerous06]

Running out of fuel!

 

[Shambo]

Ok so just bring down the rail pressure?

 

[duck_04]

Ok so just bring down the rail pressure?

no, thats whats causing the pop. your pump cant hold enough rail psi when you launch.

 

[cummins03]

i have a similar problem. i have a airdog 150 and it only seems 2 happen when I break the tires loose in 3td gear. It sounds like its missing but the rp gauge says everythings good?

 

[2007 5.9]

It's a timing issue...try running stock timing and see if results vary.

 

[Shambo]

Ok I'll try that!

 

[estrada5.9]

yeah your in desperate need of a airdog i had the same problem with my 96

True that 12v's and Common Rails are one in the same.

 

[dangerous06]

:hehe::welcome::kick::doh::bang

 

[Shambo]

I have an air dog 165.

 

[UNBROKEN]

What do you mean?

He means any popping your 96 was doing doesn't have a god damned thing to do with a common rail.

 

[2007 5.9]

You are probably draining the rail

Without being able to see the maps on the SCI trucks..I'm going out on a limb here, but in the 06+ trucks...

Rail drain isint possible...it can get low but not enough to cause a pop..the ECM has a programming feature that will begin to pull duration to keep the rail with enough fuel to maintain consistent pressure.

So as fuel is commanded and ECM sees difference between commanded vs actual pressure it will pull duration to save pressure.

Duramax ECMs do the opposite...they will allow rail to drop to maintain duration.

Again this is from looking at a 06+ perspective...but stands to reason.

 

[UNBROKEN]

This kid isn't gonna make it another 5 minutes here....I don't have time for this crap.

 

[2007 5.9]

Wait ... so you mean... to tell me .... my 12 valve .. has an oil rail?

Queue the.....BUH BYE!!!!

 

[Elidriver]

Queue the.....BUH BYE!!!!

wow i cant believe this noob, almost a complete tard :hehe:

 

[neilden]

Rodger I wouldn't call it a pop more of a step up. It's almost like the computer is increasing the fueling level after you leave the line.