2003 Honda Accord oxygen sensor

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GMILLAZ2003
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Engine Performance problem
2003 Honda Accord 4 cyl Front Wheel Drive Automatic

I failed emmissons.
it said it was the: PO135 02 Sensor Heater Circut (Bank 1 (1) Sensor 1 Bank 1 ) I was told it was the first oxygen before the cat. I replaced it and the code came up the same. PO 135. Can some body help me here please. I was also told it was the sensor in the cat
Jun 3, 2010 at 8:38 AM
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2CARPRO JACK
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Did you use a plug in sensor or a universal that has to be spliced in? if it is a universal, remove it and install tehcorrect sensor for thecar.Also check fuses 4,23 in theunder dash fuse block.There is also a A/F (air/fuel) sensor relay in that fuse block that may be bad.
Jun 3, 2010 at 9:02 AM
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