Your diagram is a little different than mine. In my case, the IH1-9 pin was powered in crank and run. I used that to power the relays in post #90 (Trans Power, Keyed Power, and Fuel Pump). The "keyed power" relay then powered the gear display, tach/cruse, tank select, coil packs, injectors...
I think if you do a search for "7 pin mod" you'll find your answer. Been a while but I'm pretty sure that'll take care of it. I did that years ago and the swap hasn't changed the way it functions.
I'll get the CC info up. Other than that, we should be about wrapped up. Let me know if you need more pictures of anything (that i don't have to take apart to photograph). :)
I'm going to post some wiring info that will be helpful. This is how I set up my fuse blocks. The one on top is the original LC block. The one below is an aftermarket block. I will get to posting how we handled Cruise Control in the next week or two. Friend of mine has the pics...
TACHOMETER
Dakota Digital unit SGI-100BT
Used Velcro to attach unit to the “Computer 4wheel drive control” module in the PS kick panel.
“Ignition” 12v keyed power
“Ground”
“Signal In” LS ECU tach signal wire. Pin 48 of J1 (has to be added)
“High Volt” output to Toyota tach. In my case, it’s a...
HEATER HOSES
There are a couple of write ups talking about a bypass of some kind for this swap. I didn't do that and haven't had any issues. Was pretty simple. I did buy another "U" shaped tube from the junkyard that came off a wrecked 80 to make it work:
CODES
I have only one code that consistently pops up: U0100. It does not trip the Check Engine Light so it doesn't really bother me. Since we took the BCM out of the equation a year ago, that's the only code that comes up when checked with a reader.
One other thing... O/D Light flashes...
TRANSMISSION TUNING
Black Bear Performance could not tune the BCM. Finally had to come to terms with the fact that we were not going to get the features we wanted from it. Did a little more reading and discovered Jim Miller at Zero Gravity Performance in AZ. I explained what had been done...
TUNING
We're closing in on the end. Let me talk a little about programming as this was an area I knew nothing about. A friend had recommended Black Bear Performance. I looked into them a little and it seemed to fit the bill. The way they work is that you purchase from them an EFI Live...
BUMP STOPS
My front bump stops have 2” extensions that came with the Slee lift kit. The driver’s side was fine when fully compressed.
I had to lengthen the bump stop 2 ½” on the passenger side. Ugh. There was simply no way around it. The first item to strike would be the oil pan on the...
A few more pictures of the exhaust. Posted pics seemed to be more helpful to me than narrative when I put it together.
Over the rear axle. Hard to tell from this picture but I should have known better than to run it right over when there control arm attaches. I eventually moved it toward the...
EXHAUST
It was just too narrow to get 3” exhaust tubing with reducers next to the engine / transmission. This problem was solved by running 2 ¼ pipe from the manifold flanges through the first bend. This ended up being about 12” on each side. Not ideal, but the output diameter of the manifold...
AIR CONDITIONING
Low Side:
The c-loop of the Toyota line that is against the firewall will not fit (interferes with PS head). The c-loop was removed at the next junction. That then bolted into the female firewall fitting. This left a short straight section coming out of the firewall.
The GM...
Lines were bent in parallel over the front pumpkin and to the front DS corner. They were anchored at the PS to the crossmember tube between the front frame rails. The first pic below is looking rearward. You can see the lines going up and over the pumpkin.
Unfortunately, I discovered...
TRANSMISSION COOLER LINES
Been a while, but I believe when I disassembled it, we discovered that Toyota had run ATF not only through their ATF cooler but also a portion of the radiator. I decided to retain the LC cooler but did not run ATF through the radiator.
I used only a short segment of...
OIL LEVEL SENSOR
Both the 1FZFE and the L92 have a float in the oil pan the turns an idiot light on when the level gets too low. I figured I'd retain this feature. Both sensors are looking for a ground to activate the idiot light. I simply cut the plug off the Toyota harness and added the GM...
Not sure. You'd still be drilling new holes in the crossmember to move it sideways. I think you have to cut some off the output shaft of a 6l90 to get it to fit Mark's adapter.
GEAR RANGE SELECTOR
There isn't provision in the 6l80e to send any signal to the dash to illuminate the shift lever position. There also isn't provision to light up the reverse lights. Guys have wrestled with this problem when doing this swap and I just wasn't totally satisfied with any of...
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