Can't do parked regen

[steeler]

Hey guys, I'm working on a us10 mp7. I have a blinking regen switch with no malfunction light, but the truck will not initiate a regen with the switch.

I did a service regen but it was taking forever and I was only getting 700 degrees exhaust temp.

I ended up replacing the 7th injector, that got me up to 900 degrees. Still not hot enough although it will complete a regen now, still have the blinking switch.

Any ideas?

[Pawel]

Hello!

I'm not sure, but I'd say you have to put some load on the engine, otherwise you have no chance to get the exhaust temperature high enough. Once I had a similar situation (OK, with a Skoda!), and I had to go out on a highway and while my buddy was driving I was connected to the car with a service computer and had to tip in a "secret code" for the burning to start. From then on it worked fine.

Good luck and have a nice day

Paweł

[j_martell]

I also run an EPA10 MP7. I've only had to do three parked regents, and all three I remember thinking that the egt was not high enough.....but the last one occurred at 80,000km (ish) and I haven't had to do one since, now at 142,000km......must have been ok

[steeler]

Thanks guys. After another service regen it finally set a fault code. Ran the diagnostics and it said it needs a reprogram. Off to the dealer