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Location of Chevy astro ho2s-13 Bank 1 sensor 3 heater circuit?
Wiki User
∙ 14y ago
I don't really know - but it should be simple to find knowing shape of the standard 4 wire sensors that are connected before and after catalyst. Catalyst is the part of the exhaust system that is connected right after engine and way before muffler. Sensors are on both sides of the catalyst. It maybe helpful to look at whole system info drawings that I found on this pagehttp://v8sho.com/SHO/TSB0197HO2SServiceTips.htm
It is VSHO.COM page that is titled: TSB 01-9-7 HO2S Service Tips and is best to search for this document on internet through Google (as I rather avoid clicking on hyperlinks from unknown source - like the one I copy above to follow).
Good luck
Wiki User
∙ 14y ago
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