OBD1 Systems and O2 Sensors and Volo Fs2 Chips

by Rick
(San Diego, Ca)

I have a 1988 GMC C2500 5.7L extended cab truck. I have an HHO system on the truck and it is running good. I understand that with more O2 the trucks computer will dump more fuel. So here are my questions. First will a VOLO FS2 device work on an OBD1 system? Second - Do you keep the O2 sensor in the exhaust pipe at its normal position or do you back it out with extenders to read less O2? Finally - What amps do you reccomend running an HHO unit at with a VOLO Chip?