engine light on...got code

celltechtitan · May 5, 2010

Looking for some help here.. Just got my exhaust done. Took out the 2 rear cats. Light came on around 1500km later.

Not sure what these codes mean or how serious they are

P2003 Particulate Trap Efficiency Below Threshold (Bank 2
P2000 NOx Trap Efficiency Below Threshold (Bank 1)

I cleared the codes but they come back. I'm thinking has to do soemthing with the exhaust. Is this something to worry about?

Thanks!

beason · May 5, 2010

my limited googleing points toward an intake change or problem. have you changed the intake?

celltechtitan · May 5, 2010

thanks...haven't changed the intake. Gonna check the filter might be clogged

baseballfanz · May 5, 2010

What did you have in place of the two rear cats? Sensors still there?

You sure that's the right code?
Maybe
P2A00 and P2A03?

celltechtitan · May 5, 2010

I checked with a obdII reader, and thats the code I got several times.

Cats is just piping now and the sensors that were beofre the secondary cats are in the pipe after the first set of cats like before

allbtitan · May 5, 2010

That's odd almost same setup as me but no codes.

baseballfanz · May 5, 2010

I would double check the harness on the 02 sensors make sure it's not cut or nicked or loose

engine light on...got code

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