p1211 ?'s

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Apr 24, 2006 | 01:08 PM

88_150

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Joined: Apr 2002

Posts: 73

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From: Loxahatchee

p1211 ?'s

I did a search for this code and everthing I found related to it being common when running a chip or tuner. I reprogrammed my truck back to stock about a month ago and now I am getting this code

.

When I ran with the scmt on max performance, I never saw this code.

I am also getting p0470 along with the p1211. The truck runs great, I get the code when I get on the pedal to pass or speed up, the SES light comes on and does not go out until I shut down and restart. If I drive it like theres an egg under the accellerator I never get the SES.

I have a 4" dp & exhaust, kwik filter and pillar pod. The boost seems normal runs up to 17 or 18 psi when in stock tune.

Any ideas?

Thanks
Bill

Sorry, this should have been posted in the 1999-2003 7.3 forum, moderator, please move this thread.

Last edited by 88_150; Apr 24, 2006 at 01:15 PM.

Apr 24, 2006 | 01:40 PM

ForemanES

Posting Guru

Joined: Apr 2004

Posts: 1,424

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From: AZ

0470 EBP Exhst press sensor ckt malfnct (96 MY) No-start or crank mode Biased sensor, open signal return

1211* IPR ICP pressure above/below desired Continuous and KOER on-demand test IPR valve failed, stuck, or shorted to ground

I bet the superduty guys will have an explanation why your getting these codes.