ramcustom
04-18-2009, 12:16 PM
I have a 1998 GMC 6.5 liter diesel. Does this engine have a MAP like a gas motor and if so do i need a MAP controller install or do i just run the HHO without it?
wickedrevs56
04-23-2009, 06:02 PM
best source to see what devices/computers etc that GM uses to control fuel flow in your rig is the factory repair manual for the engine-- check online or thru your local chev dealer--
i ha e lots of experience in computer controlled gas engines form Mpar/Jeep but not Chev/GMC diesels:cool: