Bank 1 is the exhaust pipe on the drivers side of the engine, and the other side is bank 2
When it was built, It had one.
There are multiple O2 sensors on a 2002 Chevy truck. They are all located on the exhaust system. There will be pre catalytic converter and post catalytic converter sensors.
Yes it had 1 from the factory.
Catalytic Converter is clogged.
Brown and Brown in Mesa Arizona is charging me $1300.00 to replace the catalytic converter and fuel filter.
Upstream would be before the catalytic converter. Downstream would be after the catalytic converter.
On the exhaust system before the catalytic converter. It looks similar to a spark plug with a wire out the top.
The catalytic converter is found in the exhaust system between the engine and the muffler.
Depending on where you live, you MAY be in violation of emissions law.
The catalytic converter(s) would be found in the exhaust system between the engine and the muffler.
Yes, and it is also illegal to remove the catalytic converter. Your engine will not run properly with the converter removed and will have less power and will use more fuel.
Yes, That year MUST have 1 are it will not run right. No way around it.