P0240 Code
Joined: Sep 2008
Posts: 158
Likes: 0
From: Costa Mesa,Ca SoCal
P0420 Code
I have test pipes and for the last few days my check engine light is on. P0420: Catalyst System Efficiency Below Threshold (Bank 1) Has anybody had this problem before?
Last edited by evargas; Jan 6, 2010 at 11:36 AM.
Thread
Thread Starter
Forum
Replies
Last Post
RemmyZero
V36 DIY
10
Apr 23, 2018 11:13 AM
joel extreme
SOCAL Meetings & Events
0
Sep 29, 2015 04:44 AM
