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#1
05-09-2009, 05:58 PM
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Service Engine Soon - P0138
Hey Guys,
Yesterday on my way home from work, I got a SES light, P0138 (O2 sensor circuit high voltage bank 1 sensor 2). Cleared it, Today again, P0138. Yesterday was the first time this code has popped up. Last week I put lower intake gaskets in it, and this week it got some new spark plugs, a new air filter, and a new fuel injector. What is odd is I am running a ZZP O2 emulator because I had a ZZP downpipe and high flow cat installed last summer, and ever since then I was randomly getting a P0420. The O2 sim was installed in March and has been running fine ever since then. Now this P0138 code.... I dont understand. Any one have any ideas? I'm pretty much at my wits end, one thing right after the other.
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-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<----- 
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#2
05-09-2009, 06:17 PM
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Re: Service Engine Soon - P0138
Tim are you sure the 02 simulator isn't bad? I used one too in the past but I got it from PFYC.com way back when. My Intense PCM module is custom programmed to preclude any and all post CAT 02 sensor DTCs so I don't have to run the simulator anymore.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#3
05-09-2009, 06:37 PM
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Re: Service Engine Soon - P0138
No I'm not sure its not bad Bob. It sort of irritates me. The thing was 50 bucks, it shouldnt be bad!
Is there anyone with a powertuner that I could ship my PCM to who will wipe out all the post cat O2 sensor codes? (I'll throw in a round of beers) Any Takers?
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-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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