Installing Mp3.1

[pug_ham 245 3 Cars]

aah, I did wonder, I couldn't remember exactly where the hole was on the BE1.

 

can I use that or is the hole in totally the wrong position?

Its totally in the wrong position imo, the CAS is sited more at the top of the flywheel on the timing ring & that one is to far towards the back of the engine. (See pic below for correct CAS hole, behind the plastic cover)

 

Eduard, My loom came from a UK spec non-CAT 1.9 SRi, I bought the complete car as a donor so I got all the sensors etc I needed but I also got an ecu & inlet manifold from a Citroen ZX 1.9i Volcane as they had almost the identical 1905cc engine fitted to them as the 1.9 (D6E instead of D6B) engine in the UK & the inlet manifold has the pipe for the map sensor fitted. If your car is the same spec as the DKZ cars in the UK had then it could already have a plastic inlet but the MAP sensor pipe is blocked off just above the throttle body on the inlet.

 

I don't know what cars in the Netherlands would have this system originally fitted for you to source the loom from but I don't think either the 1.8 or 2.0l will be the right ones. Looking at the UK 405's with 1.8 & 2.0l engines they had Magnet Marelli MM8P system fitted which has a CAT (the MP3.1 doesn't).

 

If you find a suitable MP3.1 donor 405 you will need the loom, Air Temp Sensor, CAS (I assume your car has Motronic M1.3 fitted now so you could use the CAS from that), coilpack, thermostat housing (these can be found on the 2.0l also in the UK), ignition amp & TPS.

 

The ZX 1.9i Volcane is a better source of ecu, throttle body & TPS as the hole bolt spacings for the TPS are different to the normal 205 one unless you make an adaptor plate. (Whole inlet if yours isn't a plastic one with blanked off MAP pipe).

 

Graham.

[welshpug 1,671]

I have a spare gearbox that looks exactly like the one pictured Graham, it has a bellhousing with the CAS and the hole on the side for the BE1 type clutch arm, I havent measured where my 205's sensor hole is yet though.

 

I think I may have sourced what I need...

[Pug_101 0]

Graham,

What is the best source car for the revcounter? I have finally decided to fit one and now need to source it (ad in wanted section). I also remember a guide you did on modifing and installing a rev counter for 3.1 management, do you have a link for it as I am strugging to find it.

Cheers

[pug_ham 245 3 Cars]

Graham,

What is the best source car for the revcounter?

All the rev counters I've modded to fit have come from other PSA family cars, first one was from a phase 1 106 Rallye iirc & the others have all been from phase2 (1993 on) 405's but the ZX uses the same rev counter as I have modded a couple of these to fit for other people.

I also remember a guide you did on modifing and installing a rev counter for 3.1 management, do you have a link for it as I am strugging to find it.

This topic?

 

Graham.

[Miles 331 1 Cars]

I;ve just done this conversion and I must say it's the easiest conversion I;ve done, Just figuring out where everthing fit's took the longest.

Well worth it and for the money more people should do this

[Pug_101 0]

All the rev counters I've modded to fit have come from other PSA family cars, first one was from a phase 1 106 Rallye iirc & the others have all been from phase2 (1993 on) 405's but the ZX uses the same rev counter as I have modded a couple of these to fit for other people. This topic?

 

Graham.

 

Great on both counts. I take it you mod the revcounter along the same lines as the linked thread.

Cheers

[pug_ham 245 3 Cars]

Great on both counts. I take it you mod the revcounter along the same lines as the linked thread.

Cheers

Exactly like in the linked thread, now I've managed to make it neater at the back of the clocks.

 

Graham.

[Pug_101 0]

Exactly like in the linked thread, now I've managed to make it neater at the back of the clocks.

 

Graham.

 

Great! Just need to find a revcounter know

Cheers

[welshpug 1,671]

plenty of PSA cars down in first choice dismantlers off ocean way

[welshpug 1,671]

Just a quick one and the answer will most probably be no, but...

 

 

will any other ECU loom fit the 3.1 ecu?

 

I know that my 2.0 16v ZX's ECU would plug into the Gti6 loom, as it uses the same Bosch plug, but for a Magneti marelli ECU.

 

sooo, if I can get hold of say an Mi16 loom could I use that with the appropriate ecu? (as in the ZX 1.9 volcane, as its the only one that suits the 8v engine without any messing)

 

its just that I'm struggling to find a Loom!!

[pug_ham 245 3 Cars]

I know the MP3.2 loom should be a possiblility as the 605 2.0 8v ecu fits the ZX MP3.1 loom but this has an ICV which the ZX ecu doesn't have.

 

Graham.

[welshpug 1,671]

righto, so it may be the same Bosch connector like the 306 uses...

 

I'll get hold of an MP3.1 ECU and try it in the old 16v plug, I'm sure someone on here has one!!!

[welshpug 1,671]

got one I think

 

so is it a case of doing as is done with Mi16 fitting?

[pug_ham 245 3 Cars]

got one I think

A loom?

 

If not, I've just looked through Autodata & the 406 2.0 8v ecu from the first run of the 605 is MP3.1 but has an ICV.

 

There is a list of the cars that use MP3.1 on this topic to widen your search for a loom.

so is it a case of doing as is done with Mi16 fitting?

Fitting MP3.1 is almost the same as fitting an Mi loom, just find the wires you need to connect to the 205 loom & splice them in. (four wires in all, two to get it running. Coilpack & fuel pump)

 

Graham.

[boombang 2]

Is there an idiots guide to this yet?

 

I sat last night with a ZX loom and the wiring diagram and all I managed to do was gash open my finger with a knife!

 

As it's going into the rallycar, I can simplify the conversion slightly

- fuel relay isn't required as fuel pump would be controlled by electric master switch

- happy to have ECU in engine bay

 

Lots of questions though, as without the other pages can only work out limited bits and pieces - next stop Haynes manual I think!

Edited July 14, 2007 by boombang

[welshpug 1,671]

A loom?

 

 

Fitting MP3.1 is almost the same as fitting an Mi loom, just find the wires you need to connect to the 205 loom & splice them in. (four wires in all, two to get it running. Coilpack & fuel pump)

 

Graham.

 

yep Alan_m is having a look in the shed this weekend I hope, thanks Graham

 

so I'll need that ECU.

 

you said 4 wires needed to be connected, so far I've figured out from the posts that they are;

 

1. Fuel Pump wire from inner wing plug (Pin 2 on inj Relay) {I remember finding this from fitting the 6 in my ZX}

 

2. Ignition Switched for pin 14 on the Inj Relay

 

what are the other 2? I think its rev counter signal, but what else?

 

They are the minimum to get it running I guess, so the rest of the loom needs wiring to the brown plugs to get the rest of the dash to work as intended.

 

this thread should help a lot - http://forum.205gtidrivers.com/index.php?s...90&hl=brown

[pug_ham 245 3 Cars]

what are the other 2? I think its rev counter signal, but what else?

Rev counter (you need a suitable rev counter in your clocks for it to work & the K light.

 

Alex, I have uploaded the scans of the ZX Haynes manual pages earlier in this topic.(first reply)

 

I've just had a look at the ZX digrams & the wires you need are;

• Pin 14 on the double injection relay.
  
• Pin 4 on the coil pack (these two are joined anyway)
  
• wire from pin 17 & 21 on the ecu plug (rev counter & K light).
  
• the wire from pin 1 on the relay.
  

Graham.

[welshpug 1,671]

I'm getting there in my head

 

4 wires to run it and the rest are sender wiring

 

minimum parts req: ecu, throttle pot, mixture pot, tdc sender, 4 output 2 part coil.

 

blanking plate or thermostat housing off coilpack equipped XU.

[welshpug 1,671]

oh yeah, and the rev counter, can this be converted like the gti6 conversion? i remember those threads

[pug_ham 245 3 Cars]

4 wires to run it and the rest are sender wiring

 

minimum parts req: ecu, throttle pot, mixture pot, tdc sender, 4 output 2 part coil.

 

blanking plate or thermostat housing off coilpack equipped XU.

Only two wires to run it really on a ZX loom, coilpack feed & fuel pump wire.

oh yeah, and the rev counter, can this be converted like the gti6 conversion? i remember those threads

Yes, thats what started the whole rev counter mod topics.

 

Graham.

[welshpug 1,671]

HMMM, looking at this loom I think it'd be easier to locate the ECU in the original position, which would mean extenting a few plugs, but not by much.

 

 

oh yeah, look what arrived this morning -

 

 

 

Going to clean everything then see if I can source a pair of plugs to use instead of chopping the loom thats on the car.

 

really want to sor tit all right now, but I need to swap the flywheel and its raining

[pug_ham 245 3 Cars]

Its not that bad but you need to extend around 90% of the wires iirc including the CAS.

 

Only wire's I didn't extend iirc were the ignition module & the ones for the rev counter & K light as they were long enough after they'd been removed from the inner wing plug of the ZX loom to join inside the car.

 

Graham.

[welshpug 1,671]

been busy today, went through the loom checking all the wires to make sure they were all present and correct, and marked them all up.

 

got my brother to put them in a nice HTML file

 

http://www.emyrderfel.co.uk/loom.html

 

just need to check what I have on the car in the two brown plugs, and work out where to mount and how to wire it up.

[welshpug 1,671]

had a look at the 2 brown plugs under the dash on my april 89 built gti.

 

 

right to left,

 

1 52 reverse light switch

2 53 reverse light switch

3 47 Coolant Temp Light Switch

4 47 Coolant Temp gauge

5 7A Alternator (dash warning light?)

6 30 Oil Temp (gauge or light?)

7 30A Oil Pressure (gauge or light?)

8 Grey wire, havent found yet

9 2 wires, 32A Tachy relay and big red wire 2A

 

 

right to left again,

 

1 no wire

2 76 Fuel pump

3 Earth

4 112 Tacho feed

5 no wire

6 Starter Solenoid

 

 

 

now so far I've worked out the following, please correct me if I'm wrong!

 

so far i've figured

 

9 pin plug 14 pin ZX plug

 

1 reverse 6

2 reverse 7

3 Coolant temp light 5

4 Coolant temp gauge 8

5 alternator warnign light 3

6 oil pressure gauge not worked out yet!

7 oil temp 11

8 no idea yet, no number visible!

9 dont know what to do with these 2, tachy relay feed and big red wire

 

6 pin plug

 

1 no wire

2 fuel pump yellow wire in 2 pin brown plug

3 earth ????

4 tacho brown wire in 2 pin brown plug

5 no wire

6 starter solenoid pin 1 of 14 pin plug

 

I'm not sure which wires to connect to the ECU and double relay as yet as I'm not sure of the funcions (i.e switcher positive ETC)

[pug_ham 245 3 Cars]

The only wire that runs to the ecu is from the shunt box & the wires to the double relay are pretty easy.

 

The big red wire in the 205 plug with #32A is 2A which runs to the coil, I used this for feed to the coilpack & double injection relay iirc.

 

I'll go over the haynes when I've got more time & post any further but its pretty clear from looking at the Haynes anyway.

 

Graham.