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?

Comments for OBD1 Systems and O2 Sensors and Volo Fs2 Chips

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OBDC I NO WAY!
by: granmar

Hi Rick,

I refer you to this link (copy and paste into your browser)
http://www.hydrogen-generators-usa.com/hho-chip.html
It describes what WILL work and what WILL NOT work!

FYI, you should be setting your HHO production to approximately 1/8LPM for each engine liter you have. Yours is a 5.7L so you need 5.7 times 1/8 or about 3/4 LPM HHO gas.

You have an OBDC I which does NOT work with an FS2 Chip!

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