Need your help! Dreaded p0420

5267 Views 3 Replies 2 Participants Last post by Adam-RallysportLTZ, Oct 21, 2016

Adam-RallysportLTZ

Discussion Starter · Oct 19, 2016

Hello, For the past 4 months I have had the ZZP downpipe, midpipe with spun metal cat and rear section of exhaust with Magnaflow muffler. Also
I have the Trifecta Elite tune. Now I havent had any issues until recently and I keep getting the p0420 code. I thought this was something that
wouldnt happen after being tuned. What should I do?

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Juanton

· #2 · Oct 20, 2016

http://www.cruzetalk.com/forum/64-g...sion/45425-check-engine-light-p0420-code.html

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Adam-RallysportLTZ

Discussion Starter · #3 · Oct 20, 2016

I read every post on that thread and none were any help towards my condition. I have 1.4L with modifications. My main concern
is to why I had no problems for 4 months and now the CEL is illuminating.

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Adam-RallysportLTZ

Discussion Starter · #4 · Oct 21, 2016

I spoke with ZZP aswell as Trifecta and they both agreed that deleting the code with tune software was the route to take.

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