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Potential Tuner
Make P0420 go away 2002 Dodge Ram 360
Trying to get rid of a P0420 code coming up from a truck having duals with high flow cats. This DTC is not listed in HPT, also no way to turn off the readiness monitor/test for the catalyst. I already disabled the DS O2 sensor, what else am I missing or is this just not supported yet? Ill attach a stock tune file.
The truck is a 2002 Dodge Ram 1500 automatic trans, 4x4 with the Magnum 360.
STOCK.hpt
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Tuner in Training
go to engine, fuel, then oxygen sensors. and disable 02 s2b1. Thats how i did it on my truck for the cat delete make sure it reinstall the down stream sensors or else you will get a code for sensor voltage to high for too long like i have.