Quote:
Originally Posted by JackandJanet
THAT'S pretty amazing! I wouldn't have thought there would be a voltage converter in the Gryphon. Still, I can see how this "feature" keeps the EPROM from being programmed accidentally.
- Jack
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The DC-DC converter is probably a single-chip that sells for a buck or two in quantity. But I'm not busting open my Gryphon to find out.
I'm fine with: Input 12 V ---> |Magic Happens| ---> Output 18V
Good, safe idea from the Blue Oval folks. You've probably noticed during programming that the gauges, fuel pump, etc all shut off. Imagine a plain 12 volts getting shorted onto the programming line from some miswired or faulty aftermarket scanner while somebody is driving. Or a very bad stereo installation. PCM sees that misdirected 12V and shuts down all inputs and outputs thinking it's getting reprogrammed. Not going to be a good ending in a moving vehicle. Requiring 6 volts above the normal 12V to put the PCM into that mode pretty much rules out the possibility of all but an intended PCM shutdown.
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2007 F150 XL, 4.6, Regular Cab, Gryphon Installed 2/2009
"voiding warranties since 1979"
