PCM code 420
Safety Car
Joined: Aug 2000
Posts: 4,154
Likes: 1
From: Murphy TX
Cruise-In II Veteran
Re: PCM code 420 (Barely Legal)
Not the most informative descriptions, but sometimes better than nothing:
http://xs-fx.com/list/codes.php
Dead cat? The code is saying that the signal on the post cat sensor looks too much like the signal from the pre-cat sensor under the test conditions and interprets this as the cat being not adequately functional.
http://xs-fx.com/list/codes.php
Dead cat? The code is saying that the signal on the post cat sensor looks too much like the signal from the pre-cat sensor under the test conditions and interprets this as the cat being not adequately functional.
