Where is the plug for the O2 sensor?
Figure 3 shows the electrical plug for the O2 sensor – simply rotate the plastic retainer counter-clockwise and the plug should come right off. New O2 sensors should have the same exact plug – ready to attach to your car. On the E36 3-Series, the plug is located towards the right side of the rear of the transmission.
How does the oxygen sensor work in a car?
The oxygen sensor produces a small voltage signal that is interpreted by the electronic control unit (ECU) of the fuel injection system. The ECU makes constant adjustments in fuel delivery according to the signal generated by the oxygen sensor in order to maintain the optimum air/fuel ratio.
What happens when you remove the O2 sensor?
When you remove the O2 sensor, you will probably find it to be black with soot, as shown in Figure 5. This is normal for an old, worn out O2 sensor.
Can a low pressure fuel system cause spark plugs to wear out?
A low-pressure fuel system will destroy the spark plugs that ignite the fuel in an engine’s cylinder. If by chance you are replacing them and you find they are worn out before their time, you might be looking at a problem with your fuel system.
Figure 3 shows the electrical plug for the O2 sensor – simply rotate the plastic retainer counter-clockwise and the plug should come right off. New O2 sensors should have the same exact plug – ready to attach to your car. On the E36 3-Series, the plug is located towards the right side of the rear of the transmission.
What happens if the O2 sensor fails to function?
Finally, if your (O2) sensor fails to function properly; your engine management computer cannot determine the air to fuel ratio. Therefore, the engine is forced to guess how much fuel to use. Resulting, in a polluted engine and a poorly functioning vehicle. It’s true that many of these symptoms could be caused by various problems.
A low-pressure fuel system will destroy the spark plugs that ignite the fuel in an engine’s cylinder. If by chance you are replacing them and you find they are worn out before their time, you might be looking at a problem with your fuel system.
The oxygen sensor produces a small voltage signal that is interpreted by the electronic control unit (ECU) of the fuel injection system. The ECU makes constant adjustments in fuel delivery according to the signal generated by the oxygen sensor in order to maintain the optimum air/fuel ratio.