Your catalytic converter's O2 senor won't know how much pollution it's putting out just causing a check engine light usually. Get it repaired it sometimes can cost a hefty fee to get it repaired. You need to change it if you have to get emissions testing.
When the oxygen sensor goes bad, the check engine light goes on.
Code 44 in any GM automobile including the 1987 Buick, means that the oxygen sensor is faulty. The oxygen sensor regulates how much air goes into the motor for combustion to occur.
When an oxygen sensor goes bad a car will burn gas at a higher than normal rate because it will not be producing as much power as before. The oxygen sensor checks the amount of exhaust.
The check engine light will illuminate. The code(s) will direct you to the faulty sensor.
Newer oxygen sensors are heated for accuracy. If the heater element goes bad the oxygen sensor doesn't work and needs to be replaced. If you have an oxygen sensor heater malfunction, it just means that the oxygen sensor has failed.
Gas sensor? Not sure what you mean, could it be a Fuel gauge sensor? Oxygen sensor? Fuel pressure regulator?
The oxygen sensor is connected by a wiring harness. The wiring harness contains the signal wire. The signal wire goes to the system computer.
There should be a connector under the car that it plugs into. It then goes to the computor.
should be a M18 x 1.4
in the exaust manifold by the donut rong before it goes into cad conv pipe
On a 2002 Infiniti G20, the oxygen sensor is typically powered through the engine control module (ECM) and does not have a dedicated fuse solely for the sensor. However, if you're experiencing issues with the oxygen sensor, it's advisable to check the fuses related to the ECM and the fuel injection system, which could impact the oxygen sensor's operation. Refer to the vehicle's owner manual or fuse box diagram for specific fuse locations and ratings.
There many sensors in that vehicle, crank sensor, cam sensor, engine temp sensor, oil pressure sensor, oxygen sensors, fuel level sensor, fuel tank evap pressure sensor, mass air flow sensor, manifold absolute pressure senser and the list goes on. Need to know which sensor you are looking for.