Adjusting ITP OBA
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Elder User
Joined: Jan 2008
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From: Newark, Delaware
Adjusting ITP OBA
I know a bunch of you guys out there have the ITP OBA. I think I need to adjust mine. Yesterday I got on it on my way in to work. My boost got up to 25 or higher and my CEL came on. The OBA is supposed to eliminate this correct? How do you determine the adjustments? Thanks gents.
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
It's almost NEVER the OBA setting. Don't adjust it. The parameters that the chip has set for the query for injection pressure for the HPOP are probably set too high for what your pump can put out. Jody fixed mine with a reburn. It sucks but that is probably what it is, not the OBA. Talk with Dennis at ITP, he will confirm what I said
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Joined: Feb 2006
Posts: 134
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From: Phoenix, AZ
Agreed, DO NOT ADJUST THE OBA unless you have verified that the SES was turned on for an Overboost Code. There are other triggers for SES lights, including P1211 injection pressure codes...and some can appear to be boost related based on happening at or near 25psi when they in fact have nothing to do with boost pressure. ONLY adjust if you are postivie that you have a reoccuring overboost code (verified by clearing all codes and checking for new codes after triggering SES again).
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
I would call Jody or email him and tell him what you are experiencing. He may tell you he needs to re-burn the chip. I am pretty sure you can drive it like that, it's just a soft code telling you that things are not within the parameters set by that query. I don't think the truck alters anything or goes into a safe mode after throwing that code. The light should go off after a few minutes. I know it probably drives you crazy, it did me, but it won't hurt anything to drive it like that until you get the chip back to Jody.
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
I am thinking about adjusting my OBA because with the AE hooked up, the pcm only sees 20# of boost. I wonder if it was seeing 22/23# of boost, something would change? Does anyone know if that would make a difference? 
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Joined: Feb 2006
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From: Phoenix, AZ
Doubtful there will be a noticeable difference, but it can't hurt to adjust it. At least with AE you can go backwards if you go too far.
Post Fiend
Joined: Feb 2008
Posts: 10,977
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From: Lancaster, Pa.
My light comes on the dash also when I get on it. I had a ICP pressure code but can't remember which one, got it marked down in my code book out in my truck. I used my SC code reader. Come on up and we'll read your codes if you have any.. Chris, on a side note, did you get those plugs from the dealer yet?? I need mine back before the trip to RRE????
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
ICP codes are very very common with aftermarket programming. It just means that there is a difference between the ICP the program is asking for and what the pump is delivering. That difference exceeds a pre-set amount for a pre-set time and triggers the light. If the problem is mild, you won't notice anything but the light. If it's severe, you will notice the power drop off because the ICP is low enough that the atomization and fuel quantity are hurting as a result. It's not an "intentional" defuel like the overboost code triggers, simply the result of the lower ICP.
Doubtful there will be a noticeable difference, but it can't hurt to adjust it. At least with AE you can go backwards if you go too far.
Doubtful there will be a noticeable difference, but it can't hurt to adjust it. At least with AE you can go backwards if you go too far.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
My light comes on the dash also when I get on it. I had a ICP pressure code but can't remember which one, got it marked down in my code book out in my truck. I used my SC code reader. Come on up and we'll read your codes if you have any.. Chris, on a side note, did you get those plugs from the dealer yet?? I need mine back before the trip to RRE????
Post Fiend
Joined: Feb 2008
Posts: 10,977
Likes: 5
From: Lancaster, Pa.
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