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-   12 Valve 2nd Gen Dodge Cummins 94-98 (https://www.dieselbombers.com/12-valve-2nd-gen-dodge-cummins-94-98/)
-   -   figure this one out!!!!!!!!!!!! (https://www.dieselbombers.com/12-valve-2nd-gen-dodge-cummins-94-98/47414-figure-one-out.html)

12vcummins96 03-29-2010 07:52 PM

:humm::humm::humm::humm::humm::humm:

Benjamin 03-29-2010 08:14 PM

i just read this again.


IIRC on the 1994 setup there was a hose that ran from the AFC housing to the turbo itself. on the newer motors, like my 96 the hose went to the intake plate. if the hose on the back of the top of the AFC housing is not seeing boost then that will give you symptoms you are describing.....

Red_Rattler 03-29-2010 08:53 PM

Exactly... No boost no afc movement. That's why I brought it up...

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Does it still havethe factory spring in it? How tight is the star wheel cranked?

Benjamin 03-29-2010 08:57 PM

i was asking if the factory line was hooked up. it is different on the 94's compared to the 96 ..... using an aftermarket turbo will require this line to be hooked up somewhere for a boost reference....

captain_stabbin 03-29-2010 09:35 PM


Originally Posted by Red_Rattler (Post 526470)
Afc functioning correctly? Does it have a good boost reference?


Originally Posted by cummins95 (Post 526456)
:humm:fuel filter?


Originally Posted by Benjamin (Post 526589)
i was asking if the factory line was hooked up. it is different on the 94's compared to the 96 ..... using an aftermarket turbo will require this line to be hooked up somewhere for a boost reference....

ahhh, that makes sense!!!! i was wonderin bout that line that went from afc to the turbo!! do i need to runn that line to afc housing?

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and no, its not hooked up, the waste gate line is goes to from housing on turbo!!

Red_Rattler 03-29-2010 09:44 PM

There's your problem... You can tap the line off of the afc into the intake horn like a boost gauge is. But without a boost ref for the afc the pump will not fuel correctly.

captain_stabbin 03-29-2010 09:50 PM

sorry correction, the line from the afc to the head is connected

94 12valve 03-29-2010 11:09 PM

are there two hoses comming off the afc housing ( 1 to the intake on the head and the other to the turbo)? since your not using the wastegate line anymore you need to plug that off or the afc foot will never move.

captain_stabbin 03-30-2010 01:05 AM


Originally Posted by 94 12valve (Post 526677)
are there two hoses comming off the afc housing ( 1 to the intake on the head and the other to the turbo)? since your not using the wastegate line anymore you need to plug that off or the afc foot will never move.

no, there is only one line connected to afc housing, from the head. the htt turbo has the line goin from the waste gate to the front housing on the turbo!!!

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i blew air in the wastegate line to make sure wastegate wasn't stuck an the rod moves fine!!!

2500HeavyDuty 03-30-2010 01:08 AM

boost leak somewhere?


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