O2 Default.

[CSH-HQ]

Call it what you will, limp-home mode, or full fuel enrichment.  But, rather 
than risk lean, it goes full rich.

If you want to run O2less. Disable codes 13-44-45, and set C/L enable to 255.

As I understand it, with the CE light on (with a P-4 ecm), your using the 
netres in the memcal along with the RFD in the ecm for fueling the motor.

Also, as far as timing goes, your using the initial timing, and the 
electrical/mechanical characteristics of the reluctor/pickup, cam/crank 
sensor, crank sensor for the timing.  Meanin that with a Hall effect set of 
sensors there is no inherent timing advance with the rise of rpm, vs a 
reluctor/pickup sensor that can pick up a couple degrees per 1000 rpm.

Corrections welcome.
Grumpy


>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.
>
>Ross Myers
>