Having problems with your 1997 Chevrolet C1500 ?

I have a '97 Chevy Silverado 2wd, auto trans, 5.7, There are 3 codes that are showing up on diagnostic report, P0134 P0135 and P1133. Could you please help me with these codes

Posted / edited by AnonymousUser on : 21-09-2020

Answers :

THE CODES AND THE DEFINITIONS:
\015\012P0134 - Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor
\015\012P0135 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 1
\015\012P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
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\015\012These codes mean that the oxygen sensor in the bank one # one cylinder side of the engine is not working properly, I suggest u replace the Bank one sensor one O2 sensor.
\015\012The bank one sensor is located in the exhaust pipe before the catalytic converter on the right bank of the engine (this is once again the bank that contains cylinder #1) as u stand in front of the truck, it takes a 7/8" wrench to remove. replace the sensor with a GM sensor, aftermarket sensors can trigger more codes and are no cheaper than the OEM sensor from GM parts. Below u can find a diagram of the cylinder layout, as u can see bank one is on the right.
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P0134, p0135 & p1133 all pertain to oxygen sensor detecting a rich lean problem on bank one sensor. Check to see if you have a miss fire or a bad fuel pressure regulator before replacing your oxygen sensor,.
Repair Help & Product Troubleshooting for 1997 Chevrolet C1500

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