Engine Mgmt., Fuel, Spark, EGTs, & Air/Fuel Ratios
Okay I threw a code 21 on my 85 GLHT so I started looking into my options after getting some advice from Naj. I read the thread on converting over to a 3 or 4 wire o2 sensor, seems pretty basic and Naj even provided me with the correct pin outputs to connect to on the PM.
I have a wideband A/F...