2002 Suzuki Aerio Q&A

2002 Suzuki Aerio Question: check engine light is on

Had the car hooked up to 2 different handheld computers,1 read 02 sensor and the other cat. converter. Then took the car to a machanic and hooked up to the big machine.He told me that after changing the Downstream sensor,the problem should be resolved??? Where is the Downstream sensor located?And what kind should I purchase? the universal,alternate,etc.? -
Answer 1
The downstream sensor is the last one located on the exhaust pipe, check the exhaust manifold in front of the engine there should be an oxygen sensor that would be 1/1 or upstream the sensor after that would be 1/2 downstream. best to buy from dealer, jobbers seem to not last as long. -
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