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Where is the best place to mount a wide band sensor? I have my rear O2 sensors turned off, I'm thinking for convenience sake, driver's side rear O2 is best. What would be better for diagnostic and monitoring procedures?
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Whipple HO, Kooks Long Tubes, Kooks Catted H Pipe, Magnaflow Magnapacs
502 HP where the rubber meets the screet
497 ft/lbs where the rubber meets the screet
The sensor must go before any cats, and preferably as close to the stock front sensor as possible. If you put the sensor after the cat, it will not properly read the air-fuel ratio.
Some wb setups support using the single stock bung and in place of the stock sensor, splicing into wiring as needed and provided by the wideband sensor circuitry to simulate the stock narrow band sensor function. I think most people prefer to use the separate dedicated wideband setup instead, to keep your stock front O2 sensors as-is.
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Mike - 2005 V6 Automatic, 300+ RWHP; 12.79 1/4
Vortech supercharger (SOLD); 180*T-stat; PLX Wideband O2, VEI digital gauges, SOS pillar pod; JBA 9MM wires; Mac LT headers, high flow cats; 8.8 w/3.73s, LPW girdle, alum driveshaft, 3000rpm TC; Steeda UCA, panhard bar, brace; CHE lca's & reloc brackets; Steeda Sport springs, Tokico DSpecs. .. "Sally" is getting "balls" ...forged V8 swap in progress
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Where to mount a wide band sensor?
.. "Sally" is getting "balls" ...forged V8 swap in progress 
