The first step was to install Oxygen sensors, lots of
people on the megasquirt forums are obsessed with wide band and I am
sure it is better than the normal oxygen sensor but I just want my car
to run well and economically so i installed normal narrowband sensors.
the other thing about O2 sensors is that they all work the same way so
figure out if you need heated or not and then buy the cheapest one you
can find on ebay.
I needed heated as I installed them away from the
manifolds and wanted them to heat fast. I got 2 GM O2 sensors for $10
for both plus shipping. I got a piece of exhaust slightly bigger than
my exhaust and cut it in half and then welded in the sensor bungs as I
am chicken and didn't want to weld on my exhaust pines upside down.
I actually installed 2 Oxygen sensors, one on each
pipe as I am going to run an air/fuel ration gauge off the second O2
sensor, that way I can see that both banks are behaving the same and
those air / fuel ratio gauges just fascinate me! below are pictures of
the air fuel mix on and off, its reading rich as i had just started
the car to get the picture and the cold start enrichment is on
(Seattle in November)
move to the next page for the next steps
