Post Injection Problem - DPF Delete enabled, Post Inj #2 still squirting!

[dmaxhumvee]

DPF delete is enabled and I’ve zero’d out the post injection tables but I’ve logged a few runs showing that Post Injection #2 is still active/squirting. Anyone run into this?

This is on a 2008 LMM, Running 52628594 OS and a DSP5 52628594.calz. It’s doing this on every DSP5 tune setting.

[GMPX]

Hi Jeff, I just sent you an Email on this :grin:
To disable those injection events for good, I am sure all you need to do is set {B1021} to a maximum of 2, I am positive 2 = Main plus Pilot 1 only.

[Dmaxink]

Ross is correct...setting that table to 2 will only allow the 2 events...by saying dpf delete enabled I'm assuming you have turned regeneration to disabled? If you still have a dpf intact just remember that the post event does aid in getting the dpf to the 900(or whatever) degrees it takes to proper fire up the regen...

[killerbee]

Your truck is trying to regenerate. If you are logging a significant post event pulse, and haven't touched those tables, you have not effectively disabled regeneration.