Re: Interesting GPR Problem
is actually the GPR controller. Power goes from fuse #22 to one post of the GPR's solenoid coil (that wire is always energized). The other post of the coil is wired directly to the PCM
. When it's cold, the PCM
grounds the coil wire, which makes the GPR come on.
'94 F250 supercab 4x4, original owner, 4.10LS, DIY elec fuel, Tymar air, Beans tunes on VA 4 position chip, Adrenaline HPOP, VDO boost/pyro/outside temp gauges, Ford digital AIC, DPPI downpipe, gutted EBPV, modded turbo ped, Con OFE, add-a-leafs front/rear, Monroe Reflex shocks, Milemarker 449SS hubs...coming soon: 6.0 IC...wish list: Stage 2's