Q: Check engine light is on - 2011 Nissan Altima

asked by on September 12, 2016

Check engine light is on. I paid $100 for a diagnosis. They said it needs new oxygen sensor. They want $340 for labor and $50 for the part. The car runs fine. $340 labor sounds high to me, to replace an oxygen sensor. So what happens if I don't replace it? And if I do replace it, can I get it done for less than $340 labor? If I don't replace it, will I have a problem passing my next smog test?

My car has 75000 miles.
My car has an automatic transmission.

Oxygen Sensor Replacement $123.80 - $932.74 Get a Quote

Hello there, thank you for asking about your 2011 Nissan Altima. It’s hard to say exactly what the shop you spoke with quoted you for, or where they were getting their parts and labor estimates from. Usually the parts are the more expensive part, with a low amount of labor to replace the sensor.

I would suggest getting a second opinion and estimate from a trusted independent technician, such as one from YourMechanic, who can replace your oxygen sensor at your home or office.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

What is a rocker switch and what uses do they have in cars?
A rocker switch is a type of on / off electrical switch that rocks back and forth on a pivot point between positions when pressed. When the switch is pressed, one side of the switch is raised, while the other...
Location of bank 1, sensor 2 on 2012 Scion xb
Yes. Sensor 2 is after the converter. Sensor 1 is the one that is closest to the engine in the manifold. If you need help replacing an oxygen sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement), a qualified technician from YourMechanic can come to your car's...
Idles between 500rpm and 1300 rpm. Main concern is low rpm. Belt or pulley chirping mainly at low rpm Drives perfect but Idles bad
Chances are these two symptoms are related. If the drive belt is not performing as designed the engine will run poorly, or not run at all. There are several components that could be the problem, and further inspection is needed....
Car runs rough in drive but run smooth in neutral
Hi There, It sounds like you may have a faulty MAP sensor as the car responds to putting it in gear or otherwise putting the motor under load. The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a...
My car alarm goes off randomly in 98 crown victoria
If the alarm is sounding even when the security system is not activated, that points to a controller issue and such will have to be diagnosed. I would recommend requesting an electrical components diagnostic (https://www.yourmechanic.com/services/electrical-components-are-not-working-inspection) and the responding certified mechanic...
Hi, my name is Jorge from North Houston, TX, and I'd like to know the location of the Expansion Valve (Orifice Tube) for 2011 GMC
Your vehicle has an expansion valve mounted at the firewall behind the two a/c lines where they connect to the evaporator assembly. You will need to evacuate the a/c refrigerant and remove line connection and then unbolt the expansion valve....
My 2007 Buick Rendezvous' Transmission Shift Lever is stuck in R for reverse.
Hi Gerry. Quite often, the main reason why the gear shifter will become stuck in reverse is due to one of three things. First, the brake switch might be stuck or damaged. Second, the ignition key cylinder itself might be...
Bad fuel injecter
That doesn't really sound like the symptoms of a bad fuel injector. It sound more like you have an air leak or a bad idle valve. But don't run out and buy a new part just yet. You really should...

Related articles

P0066 OBD-II Trouble Code: Air Assisted Injector Control Circuit or Circuit Low
P0066 P0066 trouble code definition Air Assisted Injector Control Circuit or Circuit Low What the P0066 code means This code indicates that the powertrain control module (PCM) is detecting a voltage from the air assisted injector control circuit that is...
P2648 OBD-II Trouble Code: A Rocker Arm Actuator Control Circuit Low Bank 1
P2648 means there is a problem with a short or open electrical circuit in rocker arm actuator control circuit A due to low oil or a faulty oil valve.
P0319 OBD-II Trouble Code: Rough Road Sensor B Signal Circuit
P0319 means the vehicle's crankshaft position changed due to defective, disconnected, or missing rough road sensors.