O2 sensor replacement instructions and torque specs needed

Good morning,

I attached 2 pictures for you of the location of the sensors.

https://www.2carpros.com/articles/how-an-oxygen-sensor-works

They are torqued to 18-foot pounds of torque.

The front sensor is on the exhaust manifold. The rear sensor is downstream of the converter.

You need a 19 mm O2 sensor socket for the removal.

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Do not go cheap on the sensors. Aftermarket cheap sensors do not respond well. Try to keep to the original equipment sensors.

Roy

I attached the possibilities for you below for the misfires.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

In most cases, you will need to check the fuel pressure to be sure the fuel pump is providing the correct pressure. I posted the pressure required below. You can rent a tester at a parts store for the test. If it is low, the pump will have to be replaced.

Fuel Pressure
Fuel pressure at idle .................... Approximately 350 kPa (3.57 kg/sq. cm, 51 psi)

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

The fuel pump can be changed by removing the rear seat bottom cushion to gain access to the cover for the fuel pump.

Roy

I attached the intake and the throttle body specs for you below.

Roy

Correct.

Roy

I doubt it very much.

As I stated before, I would verify fuel pressure. Low fuel pressure from a weak pump is the most common failure for that code.

Roy

You are welcome.

Always glad to help.

Roy