Is a/f leaning 1 what I want to be looking at?
If so it was at 0 when I first started the car, but as soon as the thermostat got to about 1/4 of the way up it started jumping up to 10.8, 7.8, 5.6, just randomly jumping and then once it fully heated up it staid at a constant 10.8. Guessing that...