Question about 2003 Chevrolet Impala
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Posted on Jan 02, 2017
There are two sets of 02 sensors on most cars today. On set is set directly behind the header, one on each side, if it is a V engine. This set is used for the engine's ECU to control timing as well as other variables. The other set is placed on a bung in your Catalytic converter. This 02 sensor is used for emissions purposes only.
Posted on Jun 01, 2010
the speed sensor is located on the trans axle on the right side housing before the half shaft.there should be a sensor with a wire plug connected to the sensor.
Posted on Mar 30, 2011
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