missing ECU plug, smallport

[rollaholic]

alright, so the smallport loom i have for my smallport conversion is missing one of the plugs - the 12 pin plug, which is supposed to have the following connections.

1 EFI Main
2 BATT
3 Exhaust Temp Sensor
4 Curcuit Opening relay(fuel)
5 Stop Lamp Switch
6 A/C Amplifier
7 EFI Main
8 Check Engine Lamp
9 Exhaust Temp Warn. Lamp
10 Air Conditioner clutch
11 Speed Sensor (instrument panel)
12 Idle Up Diode

seems like some of these are going to be fairly important to the running of the engine does this plug connect to parts of the car other than the engine? because i got a complete smallport engine, it doesnt look like anythings been hacked off the loom on the internal side so i figure the missing plug stayed with the vehicle. can anyone suggest a solution?

[jondee86]

Yeah.... dashboard/body loom, which is completely separate from the
engine loom. I had to buy a complete body loom to get that missing
plug.... still, I have heaps of spare coloured wires now

Cheers...

[KinLoud]

Yeah - often people forget the body loom plug that connects to the computer.....
My guess - try a 4afe loom of the same year. They will both be map sensor so there is a good chance that they will have the same connections. Good luck.

Ken
Ham
021 408 863

[QikStarlie]

common plug, pretty sure starlets and cynos's and the like around the same year use the same plugs, so other toyota are sure to as well. pick a part one

[rollaholic]

thanks for the replies guys. jondee what did you do about the other internal plugs from the engine loom? splice them into your existing bluetop loom?

[jondee86]

When I put the smallport in my AE86, I modded the smallport loom...
and what a farkin mission that was Had to unravel it, identify
every single wire, extend all the wires that went to the main ECU plugs
and splice in a few extras to match up to the AE86 dashboard loom.

Scored a spare body loom plug and spliced that into the engine loom in
the same place at it sat on the AE86 loom... to make it all look factory
From memory, the only thing I took from the AE86 loom were the plugs
and wires for the wiper motor and screen washer.

Pic shows what it looked like during the trial fit... I've tidied it up since
then. http://homepages.ihug.co.nz/~wjd/loom01.jpg

Took a lot of hours, spread over a lot of months to get it done... lucky I
didn't need the car as a daily driver. Everything works just as it should,
except when you bridge a couple of pins in the diagnostic plug the starter
kicks over I explain that as the remote starter connection

Cheers... jondee86

[matt dunn]

The one I did i had to lengthen the smallport loom to get the ecu to sit in the correct place.

[Santa'sBoostinSleigh]

i may have the plug youre looking for attached to part of my loom if need be?

[rollaholic]

hey santa,

im keen as a bean. also on the internal side of the loom theres three other plugs - ones massive, and two are smaller... i'd be pretty keen to get whatever these are plugged into as well. maybe the whole dash loom? whatever works for you i guess, let me know price etc!

[Santa'sBoostinSleigh]

well my smallport AE92 loom is merged with my blacktop AE111 loom
so not sure what plugs are there and what are being used on my racecar
will try get some time to get photos of the spare plugs during the weekend

[rollaholic]

where do the wires on that third plug actually attach to the car anyway?

[Grotty]

if you send us the ecu we can wire in your power wires into the ecu,

Import Enhancements Ltd
Wellington.

[fx gt]

if you send us the ecu we can wire in your power wires into the ecu,

Import Enhancements Ltd
Wellington.

what do you mean by power wires?
yer im feeling noobish.

[rollaholic]

i did consider sending my loom etc to you guys, but i want to learn about this kind of thing - if i cant work out the loom and ECU on a 25 y/o car im not going to have much luck with newer stuff am i