Overboost Annihilator installed....
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
If it is set correctly at 21-22psi, it shouldn't. The only code you should get is the low HPOP pressure, which goes away on its on in ~2 minutes. Also, it shouldn't defuel at 22. It does that at 25.
Joe
Joe
Post Fiend
Joined: Feb 2006
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From: Middle Tennessee
Originally Posted by HKusp
But the truck still throws a code at 22psi and defuels. What gives?
Damnit!!!
Damnit!!!
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
I guess it would do that if it's reading high. The PCM decides when to defuel, so if the MAP sensor is telling the PCM that it's seeing 25psi at only 18, then yeah I guess that's a bad "new" one.
Joe
Joe
Post Fiend
Joined: Sep 2006
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From: Millbrook Alabama
Not sure about the ITP OBA but the DIY Map fooler, has an arrow on the bottom of the regulator to indicate flow direction, If its pointin the wrong way then its not doin anything.
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Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
The ITP is the same way -- you have to have it in the right "polarity"... Long hose goes to the spider, short goes to the MAP sensor.
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Post Fiend
Joined: Sep 2006
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From: Millbrook Alabama
I didn't ralize the ITP came with the hose attached, thats pretty straight forward. When I made mine I formed new hoses, and the first time I did not pay attention to that little direction of flow arrow and had to flip it around.
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
Yep... And the little bracket you stick under the sensor. Took about 5 minutes to install. Then I promptly left the sensor plug loose, so I drove around for a couple days with an SES light until it dawned on me (with the help of a buddy with a code reader!!) that I left it off... 
Post Fiend
Joined: Sep 2006
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From: Millbrook Alabama
Originally Posted by Izzy351
Yep... And the little bracket you stick under the sensor. Took about 5 minutes to install. Then I promptly left the sensor plug loose, so I drove around for a couple days with an SES light until it dawned on me (with the help of a buddy with a code reader!!) that I left it off...
Senior User
Joined: Dec 2006
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From: Louisville, KY
Just replaced my DIY with a higher quality regulator works good now.
Originally spent $14.96 and got a Lowe's/Kobalt "NPS air adjusting valve", and it didn't have the low end adjustability that I needed. So now I spent $19.94 and got their "mini Air Regulator" and it works great even has a lock feature like my air compressor. Amasing when $5 makes a difference.
Originally spent $14.96 and got a Lowe's/Kobalt "NPS air adjusting valve", and it didn't have the low end adjustability that I needed. So now I spent $19.94 and got their "mini Air Regulator" and it works great even has a lock feature like my air compressor. Amasing when $5 makes a difference.
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Mar 29, 2006 02:40 AM