P420 Code
Thread Starter
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Joined: Dec 2004
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From: Seattle
P420 Code
should i be worried. my evo has been throwing the p420 code. was going off about once a week now just about everyday. i do have a vishnu hf cat but ive had that on for over a year and this is my first time seeing this code. started happening about 2 weeks ago.
Originally Posted by BOOSTIN24
should i be worried. my evo has been throwing the p420 code. was going off about once a week now just about everyday. i do have a vishnu hf cat but ive had that on for over a year and this is my first time seeing this code. started happening about 2 weeks ago.
Is this the Cat defish code??? Cause if it is you dont need 50 bucks to fix it more like 5 bucks.
Thread Starter
Newbie
Joined: Dec 2004
Posts: 55
Likes: 0
From: Seattle
yea its the cat def. code. but anyways that anti fouler plug will fix it for sure. im getting tuned in 2 weeks by shiv and i want everything to be running perfect for him when we put it on the dyno.