Code P0131
Thread Starter
TECH Apprentice
iTrader: (4)
Joined: Oct 2004
Posts: 394
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From: Sugar Land, TX
Code P0131 I did a search, but I didn't find a good answer.
So I was just driving normally when my SES light came on. I didn't think much of it since I needed to get home, so kept driving for another 20 minutes. The car felt fine and the power is still there.
Before going home, I dropped by Autozone and had them scan it for me. They gave the code P0131 and told me about a possible bad O2. Wouldn't a bad O2 make the car run like ****? It runs perfectly fine. What else could it be? I checked for apparent vacuum leaks, but found none.
So I was just driving normally when my SES light came on. I didn't think much of it since I needed to get home, so kept driving for another 20 minutes. The car felt fine and the power is still there.
Before going home, I dropped by Autozone and had them scan it for me. They gave the code P0131 and told me about a possible bad O2. Wouldn't a bad O2 make the car run like ****? It runs perfectly fine. What else could it be? I checked for apparent vacuum leaks, but found none.
Thread Starter
TECH Apprentice
iTrader: (4)
Joined: Oct 2004
Posts: 394
Likes: 0
From: Sugar Land, TX
I would like to add, I drive around everywhere with my cutout open, and when I let off the gas, my exhaust burbles and pops. Could this throw off my A/F ratio and throw this code?
Teching In
Joined: Apr 2008
Posts: 45
Likes: 1
From: Franklin, Wis
Umm I believe p0131 is o2 sensor 1/1 voltage low? im going off the top of my head so someone may want to double check. Depending on your mileage, it prob is just a tired o2 sensor, or rubbed thru wires. clear the code, with a scanner or by battery disconnect. if the SES light pops on with the same code , then you should investigate the problem.
Right now I'm throwing
P0131 - Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1
P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
P0171 - Fuel Trim System Lean Bank 1
I'm guessing the last code is a result of the first two.
Bank 1 is driver's side correct?
I just replaced the bitch about 3,000 miles ago, I'm guessing this just means there could be a problem with the wiring or something.
I'm gonna look under the car tomorrow to see how the wiring is and I guess replace the 02 again if I can't find anything.
If anyone has insight on this it would be much appreciated
P0131 - Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1
P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
P0171 - Fuel Trim System Lean Bank 1
I'm guessing the last code is a result of the first two.
Bank 1 is driver's side correct?
I just replaced the bitch about 3,000 miles ago, I'm guessing this just means there could be a problem with the wiring or something.
I'm gonna look under the car tomorrow to see how the wiring is and I guess replace the 02 again if I can't find anything.
If anyone has insight on this it would be much appreciated
