gpr leads
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Both of those little wires are not hot, one is hot and the other is grounded through the PCM but only when glow plugs are called for. First thing, is it cold enough that the glow plugs are even called for? Second, is the truck itself cold enough, if the oil is warm glow plugs aren't necessarily called for by the PCM.
pirschwagon, would it harm anything if we ground that PCM lead to the block with a jumper wire to verify GPR operation?
pirschwagon, would it harm anything if we ground that PCM lead to the block with a jumper wire to verify GPR operation?
#5
Ok... Both them leads, orange and red are in fact hot with KOEO. I installed them exactly the way they came off the other relay, which that worked up until the other day. It was definitely cold enough last night for plugs to come on, considering the truck hasn't moved for 6+ hrs.
Thee only thing different is that, I reinstalled the AIH relay, thinking, I could now get my CCT test to work with Car Gauge Pro. Them writes(blue, hot lead, red n orange) had been wrapped up off to the side for years.... Can't think I got the little wires crossed up considering the way they exit the loom along with the length of them.
Thee only thing different is that, I reinstalled the AIH relay, thinking, I could now get my CCT test to work with Car Gauge Pro. Them writes(blue, hot lead, red n orange) had been wrapped up off to the side for years.... Can't think I got the little wires crossed up considering the way they exit the loom along with the length of them.
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Ok... Both them leads, orange and red are in fact hot with KOEO. I installed them exactly the way they came off the other relay, which that worked up until the other day. It was definitely cold enough last night for plugs to come on, considering the truck hasn't moved for 6+ hrs.
I suspect you PCM isn't providing the path to ground to close the relay. Like Pirschwagon suggested the relay can be tested by applying 12+ to one small lug and grounding the other
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Glow Plug ON time is dependent on oil temperature and altitude. The Glow Plug relay comes on between 1 and 120 sec. and does not come on at all if oil temp is above 140F.
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Messed with it tonight. Returned for only to find they don't have another in stock. So, installed my aih relay which fits knarly but the writes reach. With 12v installed, gpr wires installed, led wire installed, and both sets of little wires installed(2red, 1orange, 1purple) and a blue wire with big eye installed on gpr wire lug... The LED does not turn off! So, switched purple with red wire, and same thing. Does not turn off..removed all aih wires, even the blue on, and now the led does not come on....
#14
When messing with wire configurations, I found that my led bulb would light up with minimal voltage supplied to it, say 3v. Now, the one configure along with a certain(blue in pic) is the suspected one. Somehow, it stays with that much volts. It's the BLUE wire on the output lug, for the AIH relay.... What does that write feed?
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