Can You Use A Downstream Oxygen Sensor For Upstream?

Should I replace upstream or downstream o2 sensor?

A mechanic said we need to replace our downstream oxygen sensor and that we should also replace the upstream one too since they usually go at the same time.

The downstream o2 sensor measures catalytic converter efficiency.

The upstream sensor is used to deliver the proper amount of fuel to that bank of cylinders..

Can you drive without a downstream o2 sensor?

Your engine will run a rich fuel mixture, fuel economy will drop, but you should be ok to drive.

What are the symptoms of a bad upstream o2 sensor?

Here are some of the most common signs that your oxygen sensor is bad.A Glowing Check Engine Light. The bright orange Check Engine light in your dashboard will usually glow if you have a bad oxygen sensor. … Bad Gas Mileage. … An Engine That Sounds Rough. … An Emissions Test Failure. … An Older Vehicle.

Are upstream and downstream oxygen sensors interchangeable?

Hello there, the upstream and downstream oxygen sensors for your 2013 Chevrolet Cruze are not the same. … The downstream sensor is a heated oxygen sensor and reads the emissions after the catalytic converter. They both function the same but are different enough that they cannot be swapped.

Can you use an upstream o2 sensor downstream?

A downstream oxygen sensor in or behind the catalytic converter works exactly the same as an upstream O2 sensor in the exhaust manifold. The sensor produces a voltage that changes when the amount of unburned oxygen in the exhaust changes. … On some newer vehicles, a new type of wide ratio air fuel sensor is used.

How can you tell which o2 sensor is bad?

Oxygen Sensor TestIdentify the specific o2 sensor that you want to do the oxygen sensor test on. … You will need a 10-megaohm impedance digital voltmeter for testing the o2 sensor. … Now start the car and let it run until it reaches operating temperature. … Once you have reached operating temperature, turn off the engine.More items…

How do I know if my upstream or downstream oxygen sensor is bad?

The downstream or diagnostic sensors only monitor the exhaust leaving the catalytic converter and will not cause such an issue. Other symptoms of a bad oxygen sensor include a rough idle, a misfire, and/ or hesitation when trying to accelerate.

Can you drive with a bad oxygen sensor?

Can You Drive With A Bad Oxygen Sensor? Yes, you can drive with a bad oxygen sensor if you can still start your engine and feel little difficulty driving. But don’t leave it alone for over a couple of days, as it might cause safety problems and lead to the malfunction of other parts of your vehicle.

Which o2 sensor goes bad first upstream or downstream?

1 is usually the one in the exhaust manifold, while sensor No. 2 is usually the downstream O2 sensor behind the converter.

Can bad spark plugs cause o2 sensor code?

Bad Spark Plug, Wire, or Fuel Injector Because the oxygen in that cylinder isn’t burned up, the extra oxygen in that cylinder winds up passing over the O2 sensor. … The danger is that the extra fuel injected to compensate eventually winds up being burned in the catalytic converter.

Are both oxygen sensors the same?

O2 sensors, also called lambda sensors or oxygen sensors, measure the proportion of oxygen in vehicle exhaust. … Physically, there’s no difference between front and back O2 sensors. They function in the same way, but the vehicle’s computer uses the measurements that they take for different purposes.

Which oxygen sensor is more important?

the front oxygen sensor in the exhaust manifold is “most important” because it is used for fuel control. the rear heated oxygen sensor is only used to monitor the operation of the catalytic converter.

What are the symptoms of a bad downstream oxygen sensor?

Symptoms of a Bad or Failing Oxygen SensorCheck Engine Light comes on. The first line of defense is the Check Engine Light. … Bad gas mileage. If the oxygen sensor is going bad, the fuel-delivery and fuel-combustion systems will be thrown off. … Rough engine idle and misfires.

Are both upstream o2 sensors the same?

Regular O2 sensors, now called Narrow band, output a voltage of . 1 to . 9 volts, depending on Oxygen levels in exhaust. Upstream or downstream , left or right, doesn’t matter, Ford, GM, Dodge, doesn’t matter, they are all interchangeable if wire and connector match up.

Is bank 1 sensor 2 upstream or downstream?

It is the sensor that measures the oxygen content in the exhaust, providing an input to the computer, which determines how to adjust the air/fuel ratio. Sensor 1 is the sensor closest to the engine. Sensor 2 is the downstream oxygen sensor. It is always going to be located after the catalytic converter.