Mi16 Wiring Loom

[kaich 6 1 Cars]

I have a mi16 loom comes from a '89 405 1.9 mi16 with a motronic 355 ecu
according to this:

http://www.taylor-eng.com/ecu/motronic_intro.html

it should be a 3 row loom with a knock sensor (no lambda)

with topics like this
http://forum.205gtidrivers.com/index.php?showtopic=82724
I've searched in the forum and I think I have solved many questions, except a couple.

starting from the ecu side:

near the ecu multiplug, 2 wires; they are useless, right?

 

 

after we find the relais box: a black one (pump?) and a white one (injection?) with a fuse

and a green plug: what for?

 

 

To be continued

[welshpug 1,627]

Green plug is obd.

[kaich 6 1 Cars]

Green plug is obd.

thanks

[kaich 6 1 Cars]

go on:

2 wires:
a brown wire

a blu (or grey) wire with a yellow plug

 

30 and 7A so I assume oil pressure and starter motor. correct?

after we found the four plugs (injectors) and the icv plug

 

 

after

 

 

 

a short cable; it should be starter motor?
another 2 wires cable with no plug: red and green with no numbers: it should be for a 2wire knock sensor? Am I wrong?

[welshpug 1,627]

I think you are on the right lines, check to see which pins on the ecu plug those two wires without a connect to.

[Miles 331 1 Cars]

Oil low and Alt are Brown and Blue 'ish', 405's never had pressure senders

[kaich 6 1 Cars]

 

after

 

 

 

a short cable; it should be starter motor?

another 2 wires cable with no plug: red and green with no numbers: it should be for a 2wire knock sensor? Am I wrong?

thank you very much

what about the pic above?

it's really hard to see where the 2 wire cable goes to the ecu plug, it's all tapered very well.

any advice would very appreciate!

[welshpug 1,627]

Use a multimeter, its very easy.

[kaich 6 1 Cars]

Use a multimeter, its very easy.

thanks, great idea!

so I found only 2 row pinout, where can I find a motronic 1.3 (3 row) loom?

There are several links about motronics 1,3 pinout comes from bmw and Porsche, but everyone is slighty different

something like this

http://www.scribd.com/doc/68042741/Motronic-pinouts

IMHO is different form the 355 ecu pinout.

thanks for the advice

 

EDIT

maybe this?

http://makovice.205gti.org/ecu

Edited September 27, 2013 by kaich

[petert 555]

I have 3 row wiring diagram & pinouts but you'll have to wait a few days.

[welshpug 1,627]

http://www.buzzboxx.co.uk/Haynes_405.pdf

[petert 555]

Factory diagram in this thread:

http://forum.205gtidrivers.com/index.php?showtopic=107950&page=6&do=findComment&comment=977569

[kaich 6 1 Cars]

thank you very much for the usefull links! They are awesome!

[kaich 6 1 Cars]

little update

 

the 205 loom is slightly different from what I read here (it's a '88 1.9)

both brown connectors are different from the link above (there is also a red connector with other signals). Perhaps some wire goes to engine bay without ecu loom.

So i connected 30 e 30a (oil) alternator e starter motor , reverse light directly.

from the 405 loom I connected pin to pin to the dash:

stwiched + (2)

engine rpm (112)

fuel pump (76)

oil temp (30c)

ground (M)

and the big loom plug to the battery + (fuse box near AFM)

 

I don't connected knock sensor (actually I dont'h have one)

 

Connected:

earth 405 loom

earth ignition module

earth battery

earth brown connector ( M in A7)

to the gearbox

 

starter motor spin, but the engin wont'start

checked:

FP (is ok and there is 3 bar in the rail)

both loom relais (both inj e FP works fine)

 

dizzy is brand new

Tried with another ignition module (both blue bosch)

 

engine still don't start. there is no + 12 V in the coil plug

Any suggestion? Some check to try?

 

thanks in advance

[kaich 6 1 Cars]

auto update

 

brand new coil

checked again AFM, ignition module, relais, ground. with multimeter. checked continuity between AFM, coil and ignition module, 12 V and earth

connected everything of 2 loom multiplugs (water temp, etc)

coil 12,5 v ok

inj relè 11,6 V (?) but working

ecu chassis 6 ohm to ground ---> connected to the ground

 

still no sparks

[kaich 6 1 Cars]

let me Know you that I'finally solved

a fu###ng brand new distributor is the cause

the old one works fine

regards

 

kaich