Wideband setup through apu1

[dave w]

Hi Dustin,
With definitions, $E6, $OD, $OE, & $31 the APU1 IS NOT needed for WBO2 data logging. The 0v - 5v output from the WBO2 is wired directly to the PCM. Wiring instructions included in the link I posted.

dave w

[steveo]

it's not totally necessary, but i'd attempt to use the apu1 input, it's higher resolution than the 8 bit adc inputs of your ecm, also a lot of GM ecm analog inputs have pretty crappy linearity considering the impedance level of your average wideband output. make sure you set it to 16 b it and scale appropriately for its 0-1024=0.5v range and keep it in autoprom mode. i only did this with an apu1 once but i didn't have much trouble

[woody80z28]

I'm not familiar with $E6, but on my $A1 I had issues and found out the "body size" was wrong. I emailed Moates to get it figured out and they were helpful.