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O2 CEL Code Chipped P28???? Why?

Old 06-01-2008, 07:39 PM
  #1  
0.5 BAR
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Default O2 CEL Code Chipped P28???? Why?

Ok im running a chipped P28 on a high compression LsV. The only CEL I have is an O2 sensor. This is tuned with crome, with O2's turned off. I tryed a chipped P75 and a chipped P28 that I had layin around and i have the same code with all of the ECUs. Reflashed chip and tried using the ostrage, resulting in the same CEL O2 code #1.....What the hell? And suggestions?
zero5672 is offline  
Old 06-01-2008, 07:56 PM
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Default Re: O2 CEL Code Chipped P28???? Why?

sounds like you dont have closed loop turned off
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Old 06-01-2008, 08:22 PM
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Default Re: O2 CEL Code Chipped P28???? Why?

What car is this in...I have seen this a couple of times in some weird random OBD2 Civics
Chris Harris is offline  
Old 06-02-2008, 06:23 PM
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Default Re: O2 CEL Code Chipped P28???? Why?

ive seen some wired ---- to ok car is obd0 91 integra wiht a ls/vtec ecu is obd1p72 with obd0 to obd1 harness

it throws code 7 egr and 3 map.. i chipped it and no more cel! i i know the dc integras dont come with egr as far as i know.. just wired ---- but the guy is happy and his car runs wiht no cel now.,.
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