Haven't tripped that code, however my chart says 21 specifically is "Oxygen
sensor signal doesn't change (stays at 4.3-4.5V). Probably bad oxygen
sensor." Hopefully the "(stays at 4.3-4.5V)" helps.
Jared
94 Dakota Sport V6, 3.9L, Auto, K&N, Mobil 1.
Date: Mon, 2 Apr 2001 17:23:59 -0700
From: "hopsdak" <hopsdak@hotmail.com>
Subject: DML: uho....
my dak just threw a mil... stored was 12 and 21...
I understand 12... bat dis.
But, 21 could be a number of things all having to do w/ the o2 sensors..
Anyone have a suggestion? I havent reset the comp. to see if it goes out
yet.... i wanted to check w/ ya'll and see if anyone else triped the same
code and what you did to fix it..
Thanks Hop.
97 cc 318 4x4 98,8848
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