Which sensors tell ECM to start regen, CM2250

[JMBT]

Hello to all! I am a new member and this is my first post. I have a 2012 Volvo with an ISX15 CM2250. Through the grace of Rawze,(Thank you, thank you, thank you) and his you tube videos, I have been able to stay out of the shop for 540,000 miles now.
Would love to delete....but i am in the communist state all the time.

Anyway, just a quick question for today: Can anyone tell me which sensors are responsible for telling the ECM to start a regen? I know the DPF Delta P, but are any others involved, or allowed to signal the start?
Thanks in advance.

[Rawze]

(07-20-2016 )JMBT Wrote:  Hello to all! I am a new member and this is my first post. I have a 2012 Volvo with an ISX15 CM2250. Through the grace of Rawze,(Thank you, thank you, thank you) and his you tube videos, I have been able to stay out of the shop for 540,000 miles now.
Would love to delete....but i am in the communist state all the time.

Anyway, just a quick question for today: Can anyone tell me which sensors are responsible for telling the ECM to start a regen? I know the DPF Delta P, but are any others involved, or allowed to signal the start?
Thanks in advance.

The ECM does math to determine a lot of it. It assumes the soot build-up according to multiple sensor feedback and how the engine is running (estimated soot production) too.

i Pm'd you my number

[trdodd07]

I'd think that the temp sensors would play a role in it. DPF in and out temp sensors, DOC inlet temp, IMAP for monitoring boost psi for regens. If you've watched the video on doing a regen on insite that Rawze has made... all those sensors probably play a role in the process. Good question on which ones can signal the ECM to start one though. My guess is the dpf diff is the key player due to it monitoring the differences in pressure between the two points. Inlet and outlet temp sensors might signal a start if a tolerance threshold is exceeded between the two??