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FWIW: My P0420 code has been on and off for over a year. The shop that tunes LS1's by me hooped it up to their laptop. Driver side, front o2 is bad. Ordered a new one from Rock Auto, will see what happens when I install it. Just got it in the mail today.
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-Rick (Photographer)
- 2001 Trans AM WS6 - M6, ORY, Borla catback, etc.
- 1998 Trans Am - M6, functional Ram Air hood, Flowmaster, 3" QTP E-cutout, ORY, K&N FIPK, 3.42's, LSD, Hella 60mm Projectors, 4300K HID's & more.
- 2003 VW Golf TDI - Turbo diesel @ 50 MPG highway
- 1998 Jeep Grand Cherokee 5.9L(ZJ) - 4.75" lift, 32" MTZ's, armor, etc.
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