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Old 12-04-2003, 01:23 PM   #1
oric20
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Location: Natick, MA
Default CEL after Turbo-back and Mil Eliminator -Code 0136

I need some big help/advice

I installed a turbo-back exhaust. Shortly after the install, I pulled a 0420 code. I bought the Mil eliminator from gruppe-s and the CEL went away.

A couple days pass, and I get another CEL I was assuming it was the 0420 again because I must have done something wrong (although I took exra care to do it correctly) I had autozone pull it for fun and its now a 0136 code which reads 2nd O2 sensor failure. (the one with the resistor on it).


is there anything I can do? do i have to buy a new O2 sensor? How much do they cost? Please Help!!!!

I have a 2002 WRX with the only performance mod being the Stromung Turbo-back exhaust with 3rd cat eliminator,


-Ciro
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Last edited by oric20; 12-04-2003 at 02:34 PM.
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Old 12-04-2003, 02:32 PM   #2
TopKatz
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maybe the resistor died? thats what it sounds like.
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Old 12-04-2003, 02:35 PM   #3
oric20
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do you think that is the reason the different code came up? When you say that all i can think of, if you are correct, is that the O2 sensor detects a malfunction, because the wires are separated, and the resistor is not doing its job (because its not working) to fool the computer in thinking that the emissions are ok.


BTW I edited the original post to make everything clearer.




-Ciro
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Old 12-04-2003, 02:39 PM   #4
TopKatz
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I would rule out the 02 sensore it self as the resistor intercepts the signal going back to teh ECU... so asuming you put the MIL in the correct place, you should safley be able to rule out the sensore .

That leaves the resistor . I have herd of simaler isues when people used a 1/4 resistor on the uppipe instead of a 1/2....

its easy enuff to swap a new one in there.....

maybe grab one from the PEP guys or see if group-s will send out another for free?
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Old 12-04-2003, 07:06 PM   #5
doogdog
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I've had the same thing happen to me, it turned out I would get the P0136 code after heavy rain. Turns out that I had a connection with heavy oxidation, some rain water got in (even though i shrink wrapped and taped the crap out of it). Pony Express replaced the MIL eliminator for free. Any more questions please feel free to PM me.
DD
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Old 12-05-2003, 12:15 PM   #6
TheMadScientist
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Take a look at this thread.
http://forums.nasioc.com/forums/show...x&pagenumber=2

First remove the O2 sensor from the car and "solder" the wires back to stock. If you use crimp conectors you will most likely get the 0136 code when the crimps corode. After the O2 sensor harness is fixed then do the mod above.
The O2 sensor wires are very hard to solder together you need to use a lot of heat to make the solder stick to the wires.

TMS
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