03 dodge ram with hemi

Asked by Dodgeguy03 Jul 31, 2018 at 11:47 AM about the 2003 Dodge RAM 1500 SLT Quad Cab RWD

Question type: Maintenance & Repair

I keep having a brake light flash off an on the truck
tries to die on me. I put a dyno on it and it says o2
bank 2. It didnt start this till I put my superchip in it.
Where is bank 2 sensor and could it be my
problem?

1 Answer
4,640

jetjurnigan answered 5 years ago

Beware the superchip as a performance cureall. My experience with them has been checkered at best...but to be fair, that's me! O2 bank 2 is the downstream sensor of 1 of your cats n I'm not sure which one. Usually the passenger side cat if you have 2. If you have only 1 cat, then I'd say the superchip is the problem. The problem with "superchips" is who programs and/or installs them. Your modern marvel of technology is a result of engineers designing your vehicle to exacting specifications of the time. These superchips are designed around the designers best guess info of your pickup, not manufacturer design specs.

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