Air/Fuel Gauge Install Tip

[Orin Eman]

<<Yes, I've done that when troubleshooting CIS...but you still have potential 
for reading a false 0.5V from the computer if it thinks the oxygen  sensor 
reading is whacked. >>

That 0.5V is _always_ there.  It's provided by a _high impedance_ voltage
divider on the MAC11 ECU.  The O2 sensor has a much lower impedance
when it is warmed up and overwhelms the 0.5V from the ECU.

Orin.