When you start totting things up...

4 injectors
ISCV
TPS
ECT
AC Clutch
Knock (maybee 2)
Cat 1
Cat 2
IMRC
MAF
EDIS
COILPACK
CPS
Phase Sensor
VSS
Variable Steering control
fuel rail preasure
Barrometric Preasure

TT

AC Clutch, Just a load switch to up revs at tick over and cut under WOT
Knock (maybee 2), just the one.Its a high compression motor.
EDIS, Not seen an external edis on anything 1990> thats not an auto trans'
Variable Steering control, seperate ecu but it is connected by can-bus.

So yep we have,

4 injectors, 2 wires each.
ISCV, 2 wires.
TPS, 3 wires.
ECT, 2 wires.
Knock, 2 wires.
Cat 1, 4 wires.
Cat 2, 4 wires
IMRC, 4~5 wires I cant remember of the top of my head.
MAF, 6 wires but has Iat built in
CPS, 2 wires.
Phase Sensor, 2 wires.
COILPACK, three wires.
VSS, 3 wires.
fuel rail preasure, 3 wires.
Barrometric Preasure, 3 wires.

Also you have the
fuel pump driver modual.
pats

There will come a point where you cant run a high emissions engine with out penalties. Some eu countrys already tax kitcars bassed on there emmisions.

Its not that hard if you brake it down into blocks. ie

start with putting the ecu where you want it.
Run the wires for the injectors. Thats one switched live and four earths to the ecu.

keep going with any one of the above and finish each one before starting the next. One weekends work will give you a full loom to wrap and thats it no messing, no tunning just plug it all in and play.

Good on you wasa , when you have sorted through all this I reckon you should knock them out to the kit car industry. Thats a huge saving over the aftermarket alternatives.

Bob

So your basically keeping the pats but just stripping back from the body loom to only have the engine loom.

But you have to do something once the ignition is on to signal PATS to go off because of this?

TT

There ae two security sytems. the Passive Anti Theft system and the Active Anti Theft system.

The PAT's is built into the ecu and is an immobilizer the AAT's is a seperate alarm unit. But the AAT's does take a signal from the PAT's.

The immobilizer will run independant of the alarm.

So yes its a case of seperating the engine loom from the car. With more advanced comunication between all the cars systems its case of seing if I can keep the ecu happy to run full power.

The Pats is really no big deal to use, its just four wires and an antenna around the ignition barrel. You dont have to do anything with it, it is completly Passive.

The big question was always "how much of the body wiring do you have to use"

are you saying that you only have the engine loom, and the connections from that to the inductive pickup at the key? and no other parts of the body loom.

TT

On the mondeo then You only need the engine loom and a couple of plugs from the car loom such as the pats plug, the obd2 plug. Thats why Ive allways gone with the mondeo. You just unplug the 42 pin plug and tease the loom out and grab the two plugs from around the steering.

The st loom has a seperate gear box loom but it is looking like I will only need a few plugs from the car loom.

Pats
DLC (Obd2)
IMRC

I dont know about the evap yet.

Ive done a marathon session on the wiring loom this week end.

I "think" I have traced back and worked out the colour and function of every pin on the st170 ecu loom.

Now starts the work of choping the loom up and removing the bits I dont want and rebuilding the loom to fit my kitcar.
I am finding twice as many functions means twice as much work

If any one is thinking of having ago ? then the only plug you need of the car loom with the fuse box is the plug for the Imrc.

On the gearbox loom you want the pre o2 sensor plug and the cps plug.

On the dash board loom there is the tranceiver plug and the obd2 port. I just robbed these two from a mk3 mondeo.

And we have progress. It was cold out side, the wife was at work and the kids where glued to some silly xbox game so I had the afternoon finishing my wiring loom.

A quick check over and I had to see if I could make it fire. I dont have an st engine yet so I slapped it on the silvertop.

Its running in very much a limp home mode as the sensors that are conected are only sat on top of the engine bar the crank / cam / coil.

The reasons for this again is getting the st engine to run in a 7 on a budget with the vvt and dsi that will go well and meet iva emisions.
And when I say budget, ive been paying <£30 for ecu's.

Still lots to do..... But looks promissing.


http://youtu.be/lLuJS5KiboE

Still very interesting.

I have a blacktop with loom, ecu , key and pickup. Will have to have a closer look at it if I can find it. I Bought a DEEP ecu to go with it to avoid PATS but it sounds like I did not need to.

TT