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rashawn, ASE Certified Technician
Category: Ford
Satisfied Customers: 393
Experience:  master tech 20 years experience
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Hi im getting two codes P1131 & P0135 with my 2000 ford explorer

Customer Question

Hi im getting two codes P1131 & P0135 with my 2000 ford explorer 4.0l sohc
Submitted: 7 years ago.
Category: Ford
Expert:  rashawn replied 7 years ago.
Taco it appears you have a malfunctioned Oxygen sensor, The oxygen sensor is a sensor located screwed into the exhaust pipe. it usually takes a O2 sensor socket to remove or a 22mm wrench. there are multiple o2 sensors on a post 96 . your codes indicate bank 1 sensor 1.
bank 1 sensor 1 is the oxygen sensor closest to the motor in the passenger side. screwed into the exhaust. not a expensive repair just somtimes they are difficult to screw out.
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Customer: replied 7 years ago.
Thank You