Do you need 2 O2 sensors?
O2 sensors are mandatory on all cars manufactured since 1981. Cars made in 1996 and after are required to have a second oxygen sensor that is located below the catalytic converter. This O2 sensor monitors the operating efficiency of the catalytic converter.
What happens when both O2 sensor goes bad?
If your vehicle has a bad oxygen sensor, it could run irregularly or sound rough when it idles. A faulty oxygen sensor can impact your engine’s timing, combustion intervals, and other essential functions. You could also notice stalling or slow acceleration.
Is the O2 sensor faulty on Toyota Avensis club?
My 2.0 vvti is on 89k and I had to replace an O2 sensor a few months ago, cost £140 from Toyota and I fitted it myself. It does seem to be a very common problem with these engines. Although the 2.0 doesn’t suffer the same type/degree of Oil consumption as the 1.8 can (up to 1 litre every 1k miles after 40k miles), mine does consume a bit.
How does the O2 sensor on a Toyota work?
Your Toyota’s oxygen sensor works as a monitor — the tip is placed inside the exhaust pipe and detects the amount of oxygen in the exhaust. If there is too much oxygen, it’s too lean, and too little would be too rich, it sends a signal to the ECM to adjust the mixture.
How often does a Toyota Avensis 2.0 burn oil?
Although the 2.0 doesn’t suffer the same type/degree of Oil consumption as the 1.8 can (up to 1 litre every 1k miles after 40k miles), mine does consume a bit. Mine’s currently burning about a litre every 4k miles. Thanks for your replies. Luckily, I’ve had both mine changed under the warrenty.
Can a bad O2 sensor cause an engine to misfire?
When your Toyota has a bad O2 sensor, it will often idle irregularly or roughly. Engine misfires. A bad oxygen sensor can disrupt the engine combustion, causing it to misfire. These misfires are usually more pronounced at lower idle speeds. Engine trouble codes.