Q: p0141 error code

asked by on

last month my check engine lite came on, took car to autozone they read the error, showed p0141. i came home and disconnected the battery for 30 min. the light went off and stayed off. but now we had very cold weather it was 5 degrees when i started the car, the check engine lite came on again it was error p0141 again, so i disconnected the battery again but the check engine lite came on without starting the engine, and stayed on when i started the car...my question is does the ecm check the heaters as soon as you turn the key to the on position?

My car has 140000 miles.
My car has an automatic transmission.

The heater in an oxygen sensor is used to get the oxygen sensor up to operating temperature quickly to allow the system to go into closed loop operation. The heater will only operate once per key operation, and only from a cold start. There are several parameters that must be met in order to keep the trouble code from appearing. This is actually a very common code that comes up when an oxygen sensor is beginning to fail. If you would like more help diagnosing and/or repairing your vehicle, contact a certified mechanic, like those available at YourMechanic.com.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. p0141 error code

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Could a leaking master cylinder cause the brakes to go to the floor very suddenly? 2004 Pontiac Grand Prix

Hi - yes, a master cylinder problem, or a leak in the brake system anywhere, could cause "sudden loss of pedal". Check your brake fluid level first for low fluid. If fluid gets low enough that air gets in the...

Q: What is the main reason for a random misfire on Audi A6 2002 3.0

Hello, thank you for writing in. Without the codes that are present it is hard to narrow down the possibilities for you. Coil packs and fuel supply are going to be towards the top of the list. You should start...

Q: Brake pedal feels mushy & goes almost to floor.

Liquid (oil, water, grease) contaminants on brake pads do not affect pedal travel, although they might increase stopping distances. Most brakes systems are designed and/or located such that leaks from nearby systems can't contaminate the pads. At any rate, a...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...