Questions tagged [p0133]

Code P0133 - Oxygen Sensor Circuit Slow Response. This code indicates the engine fuel/air ratio is not being adjusted by the oxygen sensor as expected. Part of the P01xx - Fuel and Air Metering family of codes.

On-board Diagnostics Wikipage

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'Check Engine' code P0171 System Too Lean - Is it safe to drive?

My 2003 Toyota Corolla's Check Engine Light came on. I read the codes using an OBD code reader and got P0171 - System Too Lean (Bank 1) and P0133 - 02 Circuit Slow Response (Bank 1, Sensor 1). The light is on solid, not blinking. From what I can…
culix
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Is obd code P0133 anything to worry about?

The day before I got this obd code I changed clutch and gear box oil. 15 minutes before I got this code one of my brakes pads completely wore out. I read a bit about the code and I guess they are not related but I am still learning so please let me…
James Wilson
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What can cause prolonged 0v reading on upstream O2 sensor after I raise foot from the gas?

What can cause upstream O2 sensor to drop voltage to 0v for 4-5 seconds after the throttle is left go, after which it switches back to normal fluctuation (0.1-0.85v)? There is a noticeable 'hiccup' after gas pedal is left go (every time). What can…