shorten wiring diagramm for carby to turbo conversion?

Kralle · Post by **Kralle** » Fri Sep 03, 2010 2:39 am

hello,
i'm searching for a short wiring diagramm for a carby to turbo conversion, i want to change the engines, but i don't know what things i need.
the loom is very complex i think, i want to know which wiries i need for only engine running with air flow meter, lamda sond, and injektion, so that i don't need to chop my carby loom.
it's a EA82 to a EA82T engine

hope for some help

sorry for my bad english.

steptoe · Post by **steptoe** » Fri Sep 03, 2010 6:32 am

Good to hear from you, you have been quiet during your northern summer

I thought you may have taken offence at someone complaining about a German made car here some time ago

I can start to help by asking which EA82T ECU you plan to use - either the 4 plug or 3 plug ECU, or an aftermarket ECU? They use a different distributor from each other.

Some items that come to mind:
ECU
Distributor
AFM
Injectors
O2 sensor may be optional in Germany?
Fuel pump
Injector rail fuel pressure return line to tank
Exhaust system
Engine cross member or modify yours to clear turbo up pipe RHS

Think it was Bennie El Freddo that did just what you want

YouTube · Post by **El_Freddo** » Fri Sep 03, 2010 2:21 pm

steptoe wrote:Think it was Bennie El Freddo that did just what you want

Yep pretty much. The only difference is that I did it with an MPFI.

All I can say is that the easiest way to go about it is to get the donor vehicle and strip all the wiring out of it and replace with what you have in your subi now. Swap the engine crossmembers and drop the EA turbo in.

Sounds easy but the wiring swap is pretty full on. Best if you're going from sedan to sedan or wagon to wagon as all the plugs will be the same.

After doing all of this work the EJ20G or the like would be a little more effort but well worth it with the bang for buck factor of the EJ20G. And its pretty easy to wire in the EJ turbo loom to your existing EA loom with out butchering your carbie wiring. Not that you'll be going back to carbie after the conversion!

Cheers

Bennie

Kralle · Post by **Kralle** » Sat Sep 04, 2010 9:59 pm

okay thanks for your help,
I had a L-series wagen with turbo, the one i put another turbo in, and want to put this engine in a L-series Carby Sedan,
yesterday i began to strip out the engine loom. great fortune that subaru served engine loom with the rest of the loom

@steptoe
what is AFM?

and i have a 4 plug ecu, where can i get a aftermarket ecu with other caracteristic map?

i hope you guys tell me if it's wrong only to change the engine loom

Kralle · Post by **Kralle** » Sun Sep 05, 2010 1:42 am

Hi sorry for double post

I have fund a plug and i dont know what it is

It must be connect to start the engine

i mean the blue plug

steptoe · Post by **steptoe** » Sun Sep 05, 2010 3:59 am

I have not seen or recall that blue plug on my RHD L Series. Does one plug mate with the other blue plug in the picture?

AFM is air flow meter.
Many in here have experience with non genuine ECU , not me though

Kralle · Post by **Kralle** » Sun Sep 05, 2010 5:51 pm

yes they belong together,
i think this plug will be for the automatic transmission control unit?

Kralle · Post by **Kralle** » Mon Sep 06, 2010 12:54 am

Hi sorry for doublepost,

@ steptoe:
have you a airride?

Gannon · Post by **Gannon** » Mon Sep 06, 2010 6:23 am

From memory, those blue plugs are what join the engine loom to the dash loom. There should also be a brown, back and white plugs too

AFM is the Air Flow Meter.

steptoe · Post by **steptoe** » Tue Sep 07, 2010 1:03 am

They look to have round pins like the plugs that plug into the white plastic housing that holds several connectors yeah from dash to body. I do not have the 4EAT that uses a TCU maybe that is what it is from . My 86 GLTA did have their air bag ride suspension but all that was left when I bought it was the corroded pump and solenoids , still not sen those plugs you so easily display under any L Series I have played with.

Gannon · Post by **Gannon** » Tue Sep 07, 2010 6:14 am

Nah the 4EAT uses plugs that are similar to the ECU plugs. That big blue one is definitely a body loom plug

Kralle · Post by **Kralle** » Tue Sep 07, 2010 8:40 am

yeeeeeah guys, thanks for your help

now the engine loom is only connected with 3 wires to the rest of the car (except wires too the fuse box), and the engine still runs

one wire goes to the rev meter (down't know why, rev limiter??)
and the other two looks like there going to the fule pump

http://www.youtube.com/watch?v=VgdgvvuCjyo

steptoe · Post by **steptoe** » Tue Sep 07, 2010 9:07 pm

Is this footage of the carby auto wiring or the donor mpfi auto. I think I am confused

Kralle · Post by **Kralle** » Wed Sep 08, 2010 1:26 am

its from the mpfi car...
i got a new problem, when i put off the auto tranny control unit the engine dont run, but i don't know how the engine loom and the auto tranny control unit are connected, i only got one cable, it goes to the rev meter... thats all

steptoe · Post by **steptoe** » Wed Sep 08, 2010 1:37 pm

when you say it won't run..... is it still automatic transmission?

If it is not connected and you try to start I would think it won't even turn starter motor. Can you turn engine over with starter motor with this disconnected?

If you connect, start engine and disconnect while running, does this stop the engine? WARNING is that I hear electrical thngs do not like being disconnected while operating and may cause damage

Kralle · Post by **Kralle** » Tue Sep 21, 2010 2:01 am

thanks for your help guys, conversion is completet

http://www.youtube.com/watch?v=TU66065a_ow

the one who made the conversion, me on the left side

steptoe · Post by **steptoe** » Tue Sep 21, 2010 4:15 am

Good one Kralle. It is interesting to see that you have used the plastic NA mpfi inlet on the throttle body. The factory ones are alloy and get very hot in use in summer - the alloy is almost a mild cheap form of intercooler be careful yours does not melt! In fact your flexible tube from the turbo to TB looks plastic too ?? That lifter rattle you have - I have had that on reassembly with new and near near lifters and sometimes takes a good gentle drive of 15 km or so to bleed the HVLA lifters with 15W40 or 10W30 engine oil in use.

I like your grey interior , looks good with the red paint job. Looks like you got the top of the line interior with power windows and sunroof. I have brown interior with no sunroof and manual windows, red paint sedan.

Your exhaust sounds throaty

Heated garage too !!