O2 Default.

[David Cooley]

At 05:41 PM 10/21/1999 +1000, you wrote:
>When you disconnect an O2 sensor, does the ECM stay on the same BLM or does
>it go lean/rich in the hope to see some changes?.
>Tried it on my car, went very rich after 4 days of driving (to the point of
>being undrivable), I didn't have any tools hooked up to see what the ECM was
>thinking.


2 things can happen...  It can set a code and go to limp mode which fixes 
timing and dumps a ton of fuel in, or, if it doesn't go to limp mode, it 
will incrementally add fuel trying to see a change until it hit's the 
programmed limit for BLM/INT (Pig Rich)

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David Cooley N5XMT Internet: N5XMT at bellsouth.net
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