afr

Re-installed the exhaust system after having an O2 bung welded onto the driver side collector and having the entire system freshly ceramic coated. Installed an AEM AFR gauge on the lower left face of the instrument panel just above the left hand sill. Fired up the motor to test the gauge...

I looked for wideband AFR gauges, which seemed a little overpriced for what I thought was essentially a 0-5V gauge. (I already have a Bosch WB sensor and controller feeding 0-5v to an Emerald K6 ecu). So, I tried my multimeter, but impedance is too low and drags down the signal to the ecu. Any...