General Motors' GMT400 platform.

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Bank 2 oxygen sensor location

Does anyone know of a website that shows a diagram of the catalytic system. I got a OBD code PO430. I found out what that means , but I don't know where the " bank 2" oxygen sensor is located. Please help

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Janet Fayette Bank 2 is the right (passenger side) of your vehicle.

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doesnlt help me at all. my system has single exhaust and only 2 sensors and i still hae no idea how to test and repair the wiring or even where to begin to try to find out !

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Bill Huff what make and model is your vehicle and what error code do you get?

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not a good question because my 98 ck 1500 GMC only has 2 sensors. 1 upstream and one down stream. they are both new but the wirinf on the up stream has stopped working . code 134 and 155. no activity showing.

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billhuffsr

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not a good question because my 98 ck 1500 GMC only has 2 sensors. 1 upstream and one down stream. they are both new but the wiring on the up stream has stopped working . code 134 and 155. no activity showing.

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Janet Fayette will be eternally grateful.
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