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How to wire in a single plug vts/106 gti engine loom to the ax

The 'all you need to know guide' to wiring a 16v engine loom into an ax.

This guide is specifically for single plug ECU's. For 3 plug ECU's see this page http://www.axoc.co.uk/wiki/doku.php?id=saxo_16v_3plug_pin-outs and use that information whilst following this guide.

Single Plug Looms

Here is a picture of a single plug 16v engine loom

1_sv100936.jpg

Single plug ECU's

ECU Unlocking

If you have an ecu that is locked and you dont have the keypad/transponder and key for it, then you will need to get it unlocked.

It means sending away to Bluehawk electonics or ECU doctor and paying them a small fee (Around £100) to unlock it. Ryan is now also offering this service for much less. See the for sale section sticky's

Single plug ecu wiring diagram

Below is the diagram for 16v loom.

16vpinout.jpg

I recommend that you continuity check/ diode test (this the buzz noise on multimeter) the loom though and check that there are no faults/broken cables before starting!

The above diagram is for a saxo vts loom. the 106 gti loom has some slight differences in the wires off the ignition relay. Also the collection of blue wires that need to goto live are just joined onto the starter feed on the 106 gti where as the vts has extra wires to goto the fusebox.

106 GTi 16v Engine Multiplug

Below are the two connectors found on my 106 GTi 16v engine loom

sv100941.jpg

Connector Pin Out

Please use this as a guide as the pin out for saxo vts's are probably different.

The wiring colour and numbering however are the same - according to the vts loom i wired.

Black Plug
Pin Function Wire Colour Wire No
1 Switch Live (to relay pin 14) white CC2
2 Alternator - Battery Light Red 1070
3 Water Temp Sensor (Light - Pin 2) Green 400
4 Starter motor Blue 100
5 Oil Pressure switch Yellow 410
6 Reversing Switch - Pin 1 Grey CC07
7 Reversing Switch - Pin 2 Orange 220
8 Tacho / Rev Feed Green 426
9
10 Water Temp Sensor (Gauge - Pin 1) White / Beige 401
11
12 Anti theft (ECU Pin 27) Yellow 820
13 Lambda Sensor Power Orange 123
14 Speedo Green 465
15 Anti theft (ECU Pin 48) beige 821
16 Diagnostic (ECU Pin 31) Red 140
17 Diagnostic (ECU Pin 12) Yellow 141
18 ECU light / Diagnistic (ECU Pin 9) Beige 142
19 Earth Green/Yellow MM00
20
21 Anti theft (ECU Pin 13)Red 822
22
23 Fuel Pump (From injector relay) White 120
Grey Plug

This had 3 wires going to it:

Pin Function Wire Colour Wire No
2 Oil Level (Pin 1) white 414
3 Oil Level (Pin 2) Red 416
4 Oil Temp (Pin 1) Yellow 411

AX Mk2 Engine loom connector's

The Mk2 AX pin outs are located here - rather than repeat it all!

Useful Loom Pinouts

Mating the two together

There are 2 ways of getting the 16v engine loom working in an ax

  • You can make a converter loom that fits between the 16v engine connector and the ax interior connector.

This means that you dont need to ruin the 16v engine loom in any way, and it could be used in the saxo or 106 it came from again.

  • To cut the 16v engine loom off, and solder an ax connector staight on.

This means that you will be able to use the 16v loom in other ax's but not from the saxo or 106 it came from.

Either way, you have to join the correct wires together!

The black multiplug

AX Pin Function 16V Wire colour 16V Wire No
1 Starter motor Blue 100
2 Alternator - Battery Light Red 1070
3
4 Switch Live (to relay pin 14) white CC2
5 Reversing Switch - (Pin 1) Grey CC07
6
7 Oil Level (Pin 1) white 414
8 Water Temp Sensor (Gauge - Pin 1) White / Beige 401
9 Tacho / Rev Feed Green 426
10 Reversing Switch - (Pin 2) Orange 220
11 Oil Level (Pin 2) Red 416
12 Oil Pressure switch Yellow 410
13 Water Temp Sensor (Light - Pin 2) Green 400
14

If you are going to wire the ax multiplug directly to 16v loom here is a tip!

DONOT cut the reverse and the water temp connectors that are attached to the ax engine connector. It means you DONOT have to wire there in.

Also dont cut off the starter motor wire, the alternator battery light, the oil pressure switch, oil level light. This means you will have to strip both looms back and rewrap them. but it only means soldering the ECU and the Switched live for the relay onto the multiplug

White 3 pin connector under the ecu tray

[IMG]http://i147.photobucket.com/albums/r297/rallyeax/Reference%20pics/SV105351.jpg[/IMG]

I kept the locaton if this plug under the ecu tray, therefore I had to run these cables back though the loom to the ecu connector side

AX Pin Function 16V Wire colour 16V Wire No
1 Injector Relay Power +, permanent 12v live from battery
2 ECU light / Diagnistic (ECU Pin 9) Beige 142
3 Fuel Pump (From injector relay) White 120
Lambda Sensor Power Orange 123

Unfortunately it isnt as simple as that! This is where it could get a bit complicated.

Earths

First off remember to earth all the earths!!

Injector relay permament power

In my 16v loom the injector relay was alredy connected to permanet positive battery supply via my starter motor.

This is pin 2 pin 8 pin 11 (and on vts looms pin 15) of the injector relay.

If they are not alredy connected to permanent positive battery, then either connect them to the starter motor terminal direct from the battery, or Pin 1 of the ax white connector

Lambda sensor Power

Tap this off the fuel pump wire White 120, coming from the Injector relay pin 5 or pin 6

Put an Inline fuse in the lambda power wire.

It is good practice to put an inline fuse in the fuel pump wire as the lamda can overload it and cause deterioration of the wire. You don't have to but I recomend it as I have blown this fuse a few times now so there is clearly a high load on it. This what I recommend:

i35.photobucket.com_albums_d163_mark_fern_wire-1.jpg

i35.photobucket.com_albums_d163_mark_fern_photo0152.jpg

Speedo

If you want to change to electonic speedometer, rather than the cable driven setups, then the speedo feed will have to be wired in seperatly

Function Wire Colour Wire No
Speedo Green 465
Oil Temp

If you want to wire in an oil temp gauge then use

Function Wire Colour Wire No
Oil Temp (Pin 1) Yellow 411
Reduntant wires

These are wires that you are not going to need and could be removed from the loom

Function Wire Colour Wire No
Anti theft (ECU Pin 27) Yellow 820
Anti theft (ECU Pin 48) beige 821
Diagnostic (ECU Pin 31) Red 140
Diagnostic (ECU Pin 12) Yellow 141
Anti theft (ECU Pin 13)Red 822
16v_wiring.txt · Last modified: 2016/08/18 20:27 (external edit)