code po430
Thread Starter
Cruising
Joined: Nov 2002
Posts: 14
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From: newburgh in
code po430
I have dynomax long tubes and high flow cats, keep getting this code. do I need to turn off the rear o2 sensers, or get a dyno tune. Just looking for the best way to solve this. Lets hear your ideas. Thanks, Tom
Race Director
Joined: Jun 2004
Posts: 19,459
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From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Yes, this code is the rear O2's not liking your hi-flow cats(not getting hot enough because of "hi-flow), I had this code too very common. You need to turn off the Rear O2's, if you are not planning any more performance mods, I would go ahead and get a dyno tune to get the most out of the headers, and then your tuner can delete the rear O2's. You can buy O2 sims also, but sometimes they are not reliable. A lot depends also on the emissions in your state and how strict they are.
