P0420 Code with Speed Circuit Test Pipe??
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P0420 Code with Speed Circuit Test Pipe??
I just installed my test pipe from speed circuit about 2 weeks ago and it threw a SES light I checked it with pcmscan and the code was P0420 which has something to do with the cat not performing to standards.
Has anyone else had this problem, or know what i'm doing wrong, or how to fix it?
I've been emailing Kooldino back and forth and i installed it right and everything but i don't know what to do?
Has anyone else had this problem, or know what i'm doing wrong, or how to fix it?
I've been emailing Kooldino back and forth and i installed it right and everything but i don't know what to do?
#2
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Get a defouler (aka o2 sim). It gets the flow away from the o2 sensor and keeps it from throwing a code. I don't know a ton of companies for the evo that make them, but I know general ones. Strup, Strutking, AMS, and you could make you're own. I happen to like the angled one's however.
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Check out this thread. You just need the non-foulers.
https://www.evolutionm.net/forums/ev...n-foulers.html
https://www.evolutionm.net/forums/ev...n-foulers.html
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The speedciruit testpipe has a built in angled O2 anti-fouler connection for the O2 sensor. I just purchased it, but waiting on the exhaust to ship w/ the testpipe. So it still throws the SES light consistently even with that anti-fouler connection?
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