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PO171 & PO134

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Old Jul 15, 2006, 01:07 PM
  #16  
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I have an 03 evo so does anyone know if the one at automedicsupply for $99 fits an 03?
Old Jul 18, 2006, 07:29 AM
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I just had the same problem.. but I replaced that o2 and I threw the code anyway..
Old Jul 18, 2006, 04:05 PM
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that's good to know. I ordered one from automedicsupply 3 days ago. Have order confirmation but it has not been shipped yet. Hope they can get if for me before the dynoflash next weekend.
Old Jul 18, 2006, 07:56 PM
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Originally Posted by GBEvo
that's good to know. I ordered one from automedicsupply 3 days ago. Have order confirmation but it has not been shipped yet. Hope they can get if for me before the dynoflash next weekend.
ya I replaced both from them.. perfect fit.. Plug and play!
Old Oct 30, 2006, 01:28 PM
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Originally Posted by VenomEVO8
ya I replaced both from them.. perfect fit.. Plug and play!
Any updates as to how these worked out? I'm thinking of replacing both of mine, and I'm wondering if an "off brand" O2 is a good idea...
Old Nov 1, 2006, 03:35 AM
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The 02 isnt the problem for a P0171. Its the MAF.

1. Dirty MAF from air filter oil. Spray it out with CRC MAF Cleaner
2. Non-OEM injectors. Reflash for proper injectors
3. Non-OEM Intake, mostly occurs with K&N for some reason. Reflash MAF scaling.
Old Dec 1, 2006, 08:31 AM
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Originally Posted by SmokinJoe
The 02 isnt the problem for a P0171. Its the MAF.

1. Dirty MAF from air filter oil. Spray it out with CRC MAF Cleaner
2. Non-OEM injectors. Reflash for proper injectors
3. Non-OEM Intake, mostly occurs with K&N for some reason. Reflash MAF scaling.
Where did you get this info from?
Old Dec 1, 2006, 09:15 AM
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This forum
Old Jul 24, 2007, 11:35 AM
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Okay,

First I got P2195, then cleared the CEL. Drove around then CEL appears again, this time its P0171 and P2195. Rechecked the stock air box and Cleared again the CEL.
Drove around until CEL came on, now its P0134 and P2195.
I didn't get the P0171 this time.

I'm hoping that an 02 sensor replacement will resolve this.

Anyone know if the O2 sensor (front) from an 03-05 Evo is compatible with an 06 Evo IX?
Old Jul 26, 2007, 07:35 AM
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Looking at the harness, it's a 4 wire and looks identical to the one on our 2006 Evo's
Old Aug 12, 2007, 03:59 AM
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UPDATE:

Previously, I was getting the following codes:
P0134
P0171
P2195

After installing a new OEM o2 front sensor (***** Uninstall/Install ),
drove for about 26 miles and no error codes. So far so good.

Car feels the way it should, not the bogged down feeling due to running super rich.

BTW. I verified that 05 Evo front O2 sensor is different from an 06 Evo front O2 sensor. Different part numbers.
Old Aug 27, 2007, 02:09 PM
  #27  
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Originally Posted by mvm42699
UPDATE:

Previously, I was getting the following codes:
P0134
P0171
P2195

After installing a new OEM o2 front sensor (***** Uninstall/Install ),
drove for about 26 miles and no error codes. So far so good.

Car feels the way it should, not the bogged down feeling due to running super rich.

BTW. I verified that 05 Evo front O2 sensor is different from an 06 Evo front O2 sensor. Different part numbers.
THANK YOU! ordering mine asap
Old Sep 6, 2007, 07:16 PM
  #28  
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Originally Posted by SmokinJoe
The 02 isnt the problem for a P0171. Its the MAF.

1. Dirty MAF from air filter oil. Spray it out with CRC MAF Cleaner
2. Non-OEM injectors. Reflash for proper injectors
3. Non-OEM Intake, mostly occurs with K&N for some reason. Reflash MAF scaling.
Yea right.
Proof: SN4-126 for $48.67....just installed. P0171----GONE

http://www.oxygengeek.com/item.wws?s...tid=oxygengeek
Old Sep 7, 2007, 04:47 AM
  #29  
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Originally Posted by turboDan
THe p0134 comes on first, o2 sensor bank 1 sensor 1 No Activity detected,then if you continue to drive it you will throw the p0171= system too lean,just a byproduct of the 1st code as how would your ecu detect a lean condition if your o2 sensor has no activity?
The ecu see's a 0.00 voltage for an extended period of driving it will automaticly set the p0171 as it "thinks" your system is running very lean with a 0.00 volt feedback.
Get yourself a new front o2 sensor,clear Code and you will be all set.........
Or you could/should have listened to me back on post #6 ^^^^^^^^^^^^
All that I can say is YOU'RE WELCOME
Old Sep 24, 2008, 06:49 PM
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Originally Posted by 4DR
Yea right.
Proof: SN4-126 for $48.67....just installed. P0171----GONE

http://www.oxygengeek.com/item.wws?s...tid=oxygengeek
Thousands of miles later. STILL GONE.
How's that for an update


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