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2002 gmc envoy_slt_xl
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Discussion Starter · #1 ·
Does anyone know the thread size of the O2 sensor behind the CAT. Im thinking of Hollowing out my plugged CAT ( replacement QUITE $ ($450) and rigging up a spark plug anti-fouler and opening up 1 of the spark plug anti-fouler to allow the sensor to placed inside the drilled spark plug anti-fouler on top of the original (non-modified) plug. and hoping this will "cheat" the ECU into thinking the nothing has changed to the O2 sensor. And if the threading on the O2 sensor is in fact 18mm than it should work. And i would like to know the Diameter of the O2 sensor itself and if the opening were to be drilled with a 1/2 drill bit would be sufficiant. And don't wanna go with a O2 simulator.
THIS IS ONLY BECAUSE OF THE LACK OF $$ THAT I WANT OR ATTEMPT TO DO THIS.

i did a hijack on my own thread! :suicide:
 
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