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Jugg528

Code 2372 customer stated unit started surging inspected fuel filter found debris in fuel filter found a chunk of something in the feed line blocking 90% of the line ran clear hose found unit sucking air ran auxiliary fuel line. unit still surging at idle
up to 1500 RPMs past 1500 rpms smoothes out. Removed metering and timing blocks inspected found out of spec replaced with Cummins reman unit still surging throwing 2372 code??

hhow55

Code 2372 is for Exhaust gas pressure sensor.

Jugg528

(Yesterday )hhow55 Wrote: Code 2372 is for Exhaust gas pressure sensor.

Code is fuel differential pressure sensor valid data but above normal operating range

Jugg528

(Yesterday )Jugg528 Wrote:
(Yesterday )hhow55 Wrote: Code 2372 is for Exhaust gas pressure sensor.
Code is fuel differential pressure sensor valid data but above normal operating range

Rawze

(Yesterday )Jugg528 Wrote: Code 2372 customer stated unit started surging inspected fuel filter found debris in fuel filter found a chunk of something in the feed line blocking 90% of the line ran clear hose found unit sucking air ran auxiliary fuel line. unit still surging at idle
up to 1500 RPMs past 1500 rpms smoothes out. Removed metering and timing blocks inspected found out of spec replaced with Cummins reman unit still surging throwing 2372 code??

What is the enigne ser#?. Make/model truck?... etc.etc.? and maybe some history of when it started, etc?.

Did anyone bother to do a proper injector leak test on it?.

Did anyone bother to do an over head valve inspection and adjustment on it?.

Did anyone bother to do basic tune-up work to it like replacing IMAP, exhaust BP, and other old sensors, clean piping out, do CAC leak tests, turbo inspections.,.. etc.etc.etc.?/.

and if trash was found in a fuel line fitting.. then the whole fuel line system and IFSM, etc. needs to be torn apart and cleaned out, flushed, etc.

and last but not least... is this engine deleted?.. (de-mandated)? .. because if so, that could be causing the surging,.. or greatly contributing towards the surge issue.. hiding the actual cause of faults,..etc.. and/or creating a ghost issue. - If it is then copy the program from the ecm and e-mail it to me for a review of what someone has done in there, as more then 90% of all delete programs are harmful trash.

Jugg528

It's a 2007 kw w900 truck was purchased used 2 yrs ago it has been running fine and this issue started I have not done an injector leak down test it is demandated as far as EGR goes was tuned prior to purchase.

mikkhh

Forget about everything else for now and start from reading the programming and sending it for a review.

how to connect, read and where to send
https://rawze.com/forums/showthread.php?...5#pid72945

what laptop and adapter to choose:
https://rawze.com/forums/showthread.php?...9#pid24089

Rawze

(Today )Jugg528 Wrote: ...
It's a 2007 kw w900 truck was purchased used 2 yrs ago it has been running fine and this issue started I have not done an injector leak down test it is demandated as far as EGR goes was tuned prior to purchase.

"... tuned prior to purchase..."
Your playing with fire, and for all you know, that program could be ripping the guts out of that engine more and more every mile you drive it. Get that program pulled and looked at IMMEDIATELY!!!.

and do the other things I mentioned above.

and you did not supply an engine ser#... so I still don't have any clue as to what engine you actually have there.