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Emissions Efficiency Code

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Old May 19, 2012 | 06:04 PM
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Default Emissions Efficiency Code

Does anyone know what the code is for the emissions efficiency? I will see my tuner on Tuesday and need this code turned off because I'm about to have a bunch of catalytic work done (hi-flow, etc.) I just wanted to tell them what code it is so I don't commit the ultimate taboo of mentioning the cat. word in a shop lol!
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Old May 19, 2012 | 08:02 PM
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If he is a good tuner he should know what the codes will be! If for some reason he doesn't, just tell him that you will be back after a few key cycles because the codes will set for sure! I just did LT headers and high flow cats and I barely made it out of the drive way before my c.e.l. freaked out!!! lol
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Old May 19, 2012 | 08:04 PM
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P0420 and P0421 I believe are the codes...
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Old May 20, 2012 | 03:27 AM
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Thanks!!!!
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Old May 28, 2012 | 05:40 AM
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Originally Posted by vetteboy07
P0420 and P0421 I believe are the codes...
maybe P0420 and P0430?
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Old May 28, 2012 | 03:54 PM
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So far I'm lucky and not throwing codes. I've gone about 400-500 miles now and no codes.
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