Hi were are 02 sensors locate at I have Chevy impala 2006 3.5 LS i know it have 3 of them I can't find the front one can u let me k ow it is please thank u
SOURCE: Have a 2003 Chevy Impala. Check engine light
Bank 1 is the rear O2 sensor, but experience says to change both. The front one is right behind the engine in the middle of the engine compartment. The rear O2 sensor is on the top of the exhaust pipe, just behind the catalytic converter. But the same code that shows it is the O2 sensor (which is P0420), is the same code for the catalytic converter, or a vacuum leak. Make sure if you do change the catalytic converter, ensure that the new one is OBD-2 compliant. And the vacuum leak could possibly come from the manifold gasket. Let me know what the problem was!
SOURCE: Reset my engine oil low in 2007 chevy impala
it will say in your owners manual but i believe you turn your ignition key to the run position not the start. and pump the gas pedal 3 times with in 5 seconds
SOURCE: looking to findthe mass air flow sensor on a 89 chevy corsica
location is under the hood where the aircleaner is there is an electrical connection that plugs into the mass air flow sensor
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