4/20/2021 0 Comments Code P1133 Chevy Truck
I bought a 2004 Silverado 1500 4x4 5.3 from a friend who hydrolocked it while mudding and.
![]() ![]() I had more codes than I could shake a stick at so I started poking around and found the 15A fuse for the secondary O2 sensor was blown. I looked around and found where they crushed and ripped the wires on the transmission cross member when they installed the new engine. I just put a new BOSCH GM Direct Fit O2 sensor in to replace it, and replaced the 15 amp fuse and cleared the codes, and it ran good for a few miles then started running like crap again. Before installing the new O2 sensor and clearing the codes I had: P0138 HO2S Circuit High Voltage Bank 1 Sensor 2 P0141 HO2S Heater Circuit Bank 1 Sensor 2 P0161 HO2S Heater Circuit Bank 2 Sensor 2 P0300 Engine Misfire Detected P0522 Engine Oil Pressure (EOP) Sensor Circuit Low Voltage oil pressure gauge was working intermittently but works fine now P1133 HO2S Insufficient Switching Bank 1 Sensor 1 P1153 HO2S Insufficient Switching Bank 2 Sensor 1 C0265 EBCM Motor Relay Circuit (ABS pump is bad) C0268 Pump Motor Circuit Shorted U1000 Class 2 Data Link Malfunction This is all thats come back in just 10 miles or so of driving: P0171 Fuel Trim System Lean Bank 1 P0174 Fuel Trim System Lean Bank 2 P0300 Engine Misfire Detected P1133 HO2S Insufficient Switching Bank 1 Sensor 1 P1153 HO2S Insufficient Switching Bank 2 Sensor 1 Im getting stumped on where to go from here, I was really hoping that the crushed wires would be the real root of the problem. Im wondering if water got into the computer when he was driving it off road All the harness connections I have checked (coils, fuel injector rails, O2 sensors etc) are clean and dry. SilveradoSierra.com - Chevy Truck Forum Silverado Sierra GMC Truck Forums The only site focused on SilveradoSierra trucks exclusively. Powered by phpBB version 3.0.x Advertise with Us Contact Us Copyright 2009-2020 SilveradoSierra.com - a Whoa.Co venture. All rights reserved.
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