O2 HEATER CODE PO135 PLEASE HELP - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 10-24-2012
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Join Date: Oct 2012
Location: autryville, north carolin
Posts: 1

I have a 1996 ranger w/2.3l and 5 spd it is a 2wd, anyway i am getting a dtc PO135 - BANK 1 SENSOR 1 HEATER CIRCUIT. I have replaced the O2 sensor and the computer, the cat. converter is about a year old. Someone had suggested the fuel pressure regulator, I pulled the vac. line and it is dry no fuel leak. I feel like it has to be so simple that I am just over looking it...HELP PLEASE. To reliable a truck to get rid of because of a silly problem. Also have to have NO check light for NC state inspection and has to be inspected to get tags. Any help Greatly Appreciated, Thanks
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Old 10-29-2012
Join Date: Feb 2011
Location: Aurora, NC
Posts: 76
Check the connector for corrosion and make sure the wires are not damaged. You may also want to check the O2 sensor itself to make sure you didn't get a bad one out of the box! Rare but happens sometimes.
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