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Im installing 1 7/8" ARH on my 2012 Grand Sport. One of the lower OXY Sensor's was cross threaded when it was originally installed as NEW. I managed to back it out with the use of KROIL Fluid.
What sort of Die Tool or File can I use to clean out the threads, chase the threads so as to screw it into X-Pipe Bung ????
My shop owner friend (A Street Automotive- Auburn,WA)
1) Removed the Oxy Sensors from Stock LS3 manifolds use a Heavy Duty 6 point Crows Foot Looking Socket (Snap On or MAC??)
2) My CROSSTHREADED Downstream (Downpipe) Oxy Sensor I had already removed ..and I've borrowed a 4 sided (square) thread file which Ive yet to try........
He suggested I remove the gasket on the oxy sensor so I can better file the threads but not sure how to grasp the gasket and UNSCREW IT ???
I'll take pics and post when I have done so
Last edited by CamarosRus; Apr 9, 2019 at 04:17 PM.
First I Did order/receive a new $50 DENSO Oxy Sensor
Now my "TUNER" convinced me that the Rear Oxy Sensors were not needed with his ECM tune , so I plugged the Bung Holes and returned the DENSO Oxy Sensor to EBAY...........
Rear O2's are not needed if you have a tune that turns them off. However, you may need them physically installed if you need to pass a visual emission test.
Oxy Sensor Cross Threaded from Bowling Green ???
