O2 sensor voltage after replacement - Club4G Forum : Mitsubishi Eclipse 4G Forums - 2006-2012 Eclipse Authority
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Old April 23rd, 2020, 08:59 PM   #1 (permalink)
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O2 sensor voltage after replacement

So I had a code on my 2006 mitsubishi eclipse gs 2.4 L 4 cylinder. Where it said Catalytic converter warm up efficiency was bad. I was told it could be one of a few things. The MAF sensor (I replaced it, and made no change) the catalytic converter was bad, or that it was the downstream oxygen sensors. So I ordered so down stream sensors from rocket auto, and installed them, and I no longer have the warm up catalyst code anymore, but now I have codes for oxygen sensors have low voltage and high voltage (P057). Is it because I installed an aftermarket o2 sensor instead of an oem denso? Or is it that the cars ECU doesn't like the new sensors, or something? I'd appreciate any advice I can get, as Ive already tried clearing the codes, unplugging the battery for 30 minutes, and letting it sit with the key in the run position as Ive been told that it needs an ECU reset to adjust to new sensors.
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Old April 23rd, 2020, 09:15 PM   #2 (permalink)
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Which bank and which sensor
What are the exact codes
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Old April 23rd, 2020, 09:27 PM   #3 (permalink)
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If you put in a really shitty quality one, I wouldn't be surprised to throw a code right away
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Old April 23rd, 2020, 09:34 PM   #4 (permalink)
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Its a P057, P0158. Its mostly the bank 2 sensor 2 that keeps giving me codes. Would it be recommended to just go ahead and get some new denso o2 sensors?
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Old April 24th, 2020, 01:02 AM   #5 (permalink)
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Swap your left and right sensors. If the code moves, it's a bad sensor.

You should be able to make it reach, you may have to open the harness a bit.
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Old April 24th, 2020, 05:53 AM   #6 (permalink)
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Quote:
Originally Posted by Collin View Post
Its a P057, P0158. Its mostly the bank 2 sensor 2 that keeps giving me codes. Would it be recommended to just go ahead and get some new denso o2 sensors?
Low and high voltage?

Get a Denso sensor
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2.4, 2006, aftermarket, auto, bad, battery, cars, catalytic, change, code, codes, converter, eclipse, eclipse gs, ecu, key, maf, maf sensor, mitsubishi, o2 sensor, obd2, oem, oxygen, oxygen sensors, p057, replacement, sensor, sensors

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