1228746 to 1227747, can it be done and how

[rytari]

My friend (sorry, finnish languge) started to build new "daily driver", i kept some pressure and got him buying a tbi donor instead of carbed, donor is 89´ 305 caprice


and all the driveline from it goes to chevy 60´ kingswood...

caprise dont have body only chassis, driveline, axles, wiring and 1228746 ECM, but but... in ecm, C16 pin from ecm is broken and wire from it has been drilled trought the ecm cover and soldered inside somewere, i have been trying to find other ecm use as replace but not so easy find from here. also my friend wants the underhood look much as possible old stock engine, so we take out airpump, ac, and all we just can, air filter will come from some correct era... he will take out the 6 rib belt and will change waterpump and fit V belts, hi said he wont like to install charcoal canister if wont be vital for the tbi to work... also we dont have dash so we dont have speed sensor...

my question, can i just use 1227747 ecm with that caprice wiring, those ecm:s i have 3-4 spare, 7747 wont have mat but if i just cut those wires, do i have to change something else in wiring, i looked diagrams but not sure.

i read that it would be better have vss sensor... but that is also something i dont know how to handle...

[dave w]

My friend (sorry, finnish languge) started to build new "daily driver", i kept some pressure and got him buying a tbi donor instead of carbed, donor is 89´ 305 caprice


my question, can i just use 1227747 ecm with that caprice wiring, those ecm:s i have 3-4 spare, 7747 wont have mat but if i just cut those wires, do i have to change something else in wiring, i looked diagrams but not sure.

i read that it would be better have vss sensor... but that is also something i dont know how to handle...

The 1228746 computer connectors can be repined so you can use the 1227747 computer. Here is a link that describes how to remove and re-install the computer connector pins. http://www.dynamicefi.com/RePinHowTo.php

Wiring diagrams for 1228746: http://www.gearhead-efi.com/Fuel-Inj...Information-61

Wiring diagrams for 1227747: http://www.gearhead-efi.com/Fuel-Inj...Information-42

I would use VSS #1 in this link for the 1227747 computer. http://www.jagsthatrun.com/Pages/Spe...eedometer.html

dave w

[EagleMark]

You can just plug in the 7747 to 8746 wiring. Only thing that needs to be removed is IAT wiring, 7747 has no IAT.

I use the dakota digital sensor from summit racing, SEN-01-4160, its a 8000 pulse/mile , or 8 pulse/rev. This sensor is cheapest I have found anywhere at $39.00 from summit.

[ony]

I HAD ONE OF THEM WAGGONS WHEN I WAS 17-18 WISH I HAD IT NOW, 409 WITH A AUTO TRANS MINE WAS RED AN WHITE.

[rytari]

what to do for that connector, i think the pin from the ecm is inside it still, atleast it looks like it, is it possible to take out that one wire form the connector and does anybody sell new picns for that. or whole connector...

[Woods]

what to do for that connector, i think the pin from the ecm is inside it still, atleast it looks like it, is it possible to take out that one wire form the connector and does anybody sell new picns for that. or whole connector...

Removing pins http://www.dynamicefi.com/RePinHowTo.php

new connectors http://www.dynamicefi.com/ConnTerminal.php

[rytari]

Removing pins http://www.dynamicefi.com/RePinHowTo.php

new connectors http://www.dynamicefi.com/ConnTerminal.php

thanks... shipping to here a bit expensive side but maybe ill ask for that swedish retailer linked on their page...