Thanks, didn't even notice you modified the quoted text on my phone lol

Yeah I get that,I can't tell if the hot in run by ecm b is for that or the hot fuel module. If it's not then that would be 10a memory power

yeah I've got a couple of them with plugs I snatched from other cars and will go that route if I cant stick with the oem pre-wired relay.

on another note. I have this diagram I found as well:...

ok, its definitely the EAC solenoid. per the wiring diagram, I probed the B terminal of the ESC (pink/black) to the pink/black at this connector and they have continuity. I then chased from the egr...

couple more questions.

harness is from a 1988 4.3 manual truck. I'm down to the last couple of things.

The blue wire coming off the ESC at terminal E:...

I came across a deal I could not refuse and did a thing.

no clue what to do with the usb harness but I'm sure I will find out on the cd lol. I assume this is the usb data port and that it plugs...

finally had a chance to get back out to the upull and they had a 88 and 89 truck with intact harnesses. yup, the connector was a fuse connector. went ahead and grabbed one plug with the cover and...

lol, you know what I mean. it wasnt a recreational vehicle is what I meant. it makes sense as one of the wires in the harness is a different color from the chart as well. when I get a chance, I'll...

K series. Came from a blue 88 truck

found it! yup, B5. cool deal.

https://www.binderplanet.com/forums/index.php?threads/tbi-swap-fuel-only-tach-signal.103732/

found this thread while searching. which pin on the 7747 do you hook the tach output of the MSD unit to? I think its pin B5 (reference pin which is ppl/wht) but I havent seen it confirmed anywhere...

cool, I will look into more tomorrow. I just finally figured out how to get the pins out of the ecu connector. I'm going to pull them one at a time and unravel this birds nest once and for all so I...

I have that wiring diagram sitting next to me at my desk actually and have the notes from binder planet snipped in under it.

it seems weird to me as well but if it works I'm cool with it. I tried...

ok, I'm pretty sure its the fuel pump test connector. not sure if it just stays unplugged like this when not in use or not. The tan/white wire traces all the way back to pin B2 on the ecu...

interesting. I wonder if its the 20a in the pic then. most likely I think. gonna probe some stuff later this morning and check it out.

ok I think it may have been to some sort of fuel module that I dont need? I cant really tell what else it could have gone to. though I will say there is no black/white on the plug. but where my...

ok, but what does it connect to? people on another group think it may be for the alternator but I'm not so sure? I have a 10si alternator on the engine this harness will go on and this plug does look...

Ok so my thinking was in the right direction but backwards
I thought it was maybe that if it lost oil pressure it would shut off fuel pump to kill engine and save it maybe

I have my 88 truck harness almost sorted. kinda confused on two connectors over by the fuel pump relay.

I believe the one is the fuel pump test connection?
19791
two prong and has tan/white and...

I'm ready to start putting this thing together. got my test stand engine running on all of the original equipment (runs good too).

what you dont see in the pic is the radiator setup I have for...

ok, so I got an original run quarterhorse the other day and the battery was obviously dead.

found out from ted jenkins that one of the battery traces is super close to one of the battery posts and...

I will read that one again. but its hard to explain. I just remember it was a tutorial with screen grabs from tunerpro so as you read along, you could do the same thing yourself (as a test) and go...

yeah I wish the 250 stuff was compatible with this engine honestly but alas, nothing interchanges. I am going to see about the toyota 1F and 2F head though. I already have the HEI distributor for...

yeah, step one has been parts collection and research.

step two will be getting it on the truck and get it tuned n/a

step three will then be to toss the turbo on it and try not to scatter the...

it shouldnt be much honestly. I think the 454 injectors will be able to handle it.

everything is going on a 59 chevy 235 inline six. will probably only run 5 or so pounds so I dont shatter the...