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B6304 OBD codes and questions

posted by  jaydee on  Sun Aug 7 12:27 CST 2005
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last visit: Thu Oct 23 23:45 CST 2014
[RELATED]

I just buttoned up the last of the head replacement on our 92 960, and started it up. 'Check engine' light came on. Checked code in the #2 position and got 4-1-1. What the heck is that? There is no reference to that in my Chiltons or in the FAQ. I double checked and triple checked and the code is definitely 4-1-1.
I did notice that I had neglected to connect the throttle switch, and rememdied that right away.
Also, I notice the IAC buzzes quite noticably with the ignition on; is that normal? I had never noticed that before.
TIA
JD
65 1800S
84 240GLE
86 740 turbo
89 760GLE
92 960GLE with a new life!!






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