Multiplex Wiring Anyone Know The In's And Out's?

[layton1985 5]

Multiplex wiring has (to me) been a reason for not trying to put a lot of engines into a 205, I hear that it is very complicated and that you need virtually all of the donor car in the 205 you are putting the engine in? but what if the engine you have is completely ruined and you can have a hdi engine for peanuts complete, surely it must be worth having a look at.

 

Does anyone or has anyone ever put angine into and older car that required multiplex wiring alterations? I would like to know what's involved and how much of the abs and airbags etc you can get rid of if you can? and how.

 

Reason I am enquiring is my diesel 205 is goosed and to sort the engine out I could buy a hdi engine which is far newer, better on fuel probably smoother drive, more powerful and will be more reliable hopefully so all in it's favour upto now.

 

Thanks Lee

[welshpug 1,683]

if you get the donor from a D8 (phase1) 406, or any 306, they will not be multiplex

[layton1985 5]

Thanks for the reply mate I have just been doing some more digging and found that I could use the hdi 90 engine, also I looked into the 206 gti 180 engine for my other car 309 gti as 4 weeks after completing 2.0 8v turbo I sent rod through the block I am extremely gutted to say the least, a block I sourced needs a rebore and pistons at £500,

 

omex ecu would sort the 180 engine nicely I think

[omega 82]

if you get the donor from a D8 (phase1) 406, or any 306, they will not be multiplex

 

i thought the d8s only had the 1.9 or2.1 and the hdi was only fitted to the d9

[Redtop 14 2 Cars]

i thought the d8s only had the 1.9 or2.1 and the hdi was only fitted to the d9

 

Ah no, they had the 2.0hdi in the very last of the mk1 406's, but I don't think there was a lot of them. Only reason I know that, is that we has a silver demo saloon model back in 97/98 that my dad was nabbed speeding in.

[layton1985 5]

I am impressed as to the level of knowledge people have on here regards technical data I am not so clued up so sometimes it can make understanding some conversations a little difficult for me and maybe a few other people that haven't asked the question could someone clarify the following terms and engine codes,

 

what does IIRC mean?

 

HTW?

 

I know that 205 gti 1.9 is xuj9

1.6 is xuj5

 

mi16 1.9 alloy?

mi16 2.0 cast?

gti6 2.0 ?

206 gti 136 bhp?

206 gti 180 bhp?

 

what does d8, d9 etc refer to?

 

On here people give the engine code as for example xu10j2te but on ebay they say engine code is d9b?? etc which one is the real engine code or which is the code and what is the other number or reference for?

 

sorry for all the questions just want to catch up with you guys the fast way I could spend weeks looking through n catching one or two but I'm using my brains ha

 

Thanks guys

[welshpug 1,683]

what does IIRC mean? If I Remember Correctly.

 

HTW? not a clue

 

I know that 205 gti 1.9 is xuj9

1.6 is xuj5

 

mi16 1.9 alloy? XU9J4, alloy block cast iron/steel wet liners.

mi16 2.0 cast? Cast iron/steel block XU10J4

gti6 2.0 ? same block and crank as above. XU10J4RS

 

206 gti 136 bhp? Alloy block dry cast in steel liners, EW10J4

206 gti 180 bhp? Alloy block dry cast in steel liners, higher performance version of the above, lots of small modifications, EW10J4S

 

what does d8, d9 etc refer to? D8 is phase 1 406, D9 is phase 2.

 

On here people give the engine code as for example xu10j2te but on ebay they say engine code is d9b?? etc which one is the real engine code or which is the code and what is the other number or reference for?

 

 

All engines have a specific version code, B6D is the most common 1.6 gti, D6B the 1.9, D6C the 1.9 mi16 non cat, DFW the cat engine, RFY the 2.0 MI16, RFS the gti6, not too hot on the later engines.

[layton1985 5]

Thanks for the reply mate I am just searching every nuck and cranny of the net for a 206 gti 180 engine, I have found an omex ecu and loom and was just too late missing out on an engine for £200, whilst others are asking £500 +, just bare block and head it would cost another £300 + to get the manifolds and starter etc, I did a completed listing search and none of them are selling, just being relisted week after week, I will pay the money if everything is there.

 

I found the following data on engines and have noticed myself the 1.6 gti engine is missing and the 206 engines are not there, this is from a previous post on here

 

Model Engine Code year ECU System

 

106 1.3i 8v Rallye TU2J2L/Z (MFZ) 1994 - 1997 Magnetti Marelli 8P

106 1.6i Rallye 8v TU5J2/L3 (NFW) 1997 - 2000 Motronic MP5.2

106 1.6i Rallye 16v TU5J4/L3 (NFX) 1998 - 2000 Magnetti Marelli 1AP

106 1.6i 16v GTi TU5J4/L3 (NFX) 1997 - 2001 Magnetti Marelli 1AP

 

205 1.6i XU5M (BDY) 1990 - 1991 Magnetti Marelli BAG5

205 1.6i cat XU5M2Z (BDY) 1991 - 1992 Magnetti Marelli BAG5

205 1.6i & AT cat XU5M3Z (BDY) 1992 - 1996 Magnetti Marelli FDG6

205 1.9 GTi XU9JA (D6B) 1987 - 1992 Bosch LE Jetronic

205 1.9 GTi 8V cat XU9JAZ (DKZ) 1990 - 1994 Motronic 1.3

205 1.9 CTi & Gentry XU9J1 (DFZ) 1987 - 1994 Bosch LU2 Jetronic

 

 

306 1.8i cabrio XU7JP/Z (LFZ) 1993 - 1997 Magnetti Marelli 8P

306 1.8i cabrio XU7JPL/Z (LFZ) 1993 - 1997 Motronic MP5.1

306 1.8i XU7JP/L3 1997 - 2001 Magnetti Marelli 8P1A

306 1.8i 16v XU7JP4/L3 1997 - 2001 Sagem SL96

306 2.0i cabrio XU10J2CL/Z (RFX) 1993 - 1997 Magnetti Marelli 8P

306 2.0i 16v XU10J4L/Z (RFY) 1994 - 1997 Motronic MP3.2

306 2.0i S16 XU10J4L/Z (RFY) 1994 - 1996 Motronic MP3.2

306 2.0i 16v XU10J4R/L3 1997 - 2001 Motronic MP5.2

306 Rallye XU10J4RS/L3 1997 - 2001 Magnetti Marelli 1AP

306 2.0i GTi-6 XU10J4RS/L3 1997 - 2001 Magnetti Marelli 1AP

 

309 1.6i cat XU5M2Z (BDY) 1991 - 1992 Magnetti Marelli BAG5

309 1.6i cat XU5M3Z (BDY) 1992 - 1993 Magnetti Marelli BAG6

309 1.9 8v XU9M (DDZ) 1988 - 1993 Bendix 1B

309 1.9 8v XU9JAZ (DKZ) 1988 - 1993 Motronic M1.3

309 1.9 16V DOHC XU9J4K (D6C) 1990 - 1991 Motronic 4.1

309 1.9 16V DOHC XU9J4K (D6C) 1991 - 1992 Motronic 1.3

309 1.9 16V cat XU9J4L/Z (DFW) 1990 - 1992 Motronic 1.3

 

 

405 1.9i XU9J1 (DFZ) 1988 - 1993 Mono - Jetronic

405 1.9i XU9M (DDZ) 1989 - 1993 Bendix 1B

405 1.9 Mi16 & 4x4 16v XU9J4K (D6C) 1988 - 1991 Motronic ML4.1

405 1.9 Mi16 & 4x4 16v XU9J4K (D6C) 1991 - 1993 Motronic M1.3

405 1.9 Mi16 cat XU9J4/Z (DFW) 1990 - 1992 Motronic M1.3

405 1.9i W/ distributor XU9J2K (D6D) 1990 - 1991 Motronic MP3.1

405 1.9i DIS XU9J2K (D6D) 1991 - 1992 Motronic MP3.1

405 1.9i XU9JAZ (DKZ) 1989 - 1993 Motronic M1.3

405 2.0i & 4x4 8v cat XU10J2C (RFX) 1992 - 1997 Magnetti Marelli 8P MPi

405 2.0i 16v cat XU10J4/Z (RFY) 1992 - 1995 Motronic MP3.2

405 2.0i 16v turbo cat XU10J4TEL/Z (RGZ) 1993 - 1995 Magnetti Marelli 8P MPi

 

406 1.8i 16v XU7JP4 (LFY) 1995 - 2001 Motronic MP5.1.1

406 1.8i 16v XU7JP4 (LFY) 1995 - 2001 Sagem SL96

406 1.8i XU7JB (LFX) 1997 - 2001 Magnetti Marelli 1AP20

406 2.0i 16v XU10J4R (RFV) 1995 - 2001 Motronic MP5.1.1

406 2.0i Turbo XU10J2CTE (RGX) 1997 - 2000 Motronic MP3.2

406 3.0i V6 ES9J4 (XFZ) 1997 - 2001 Motronic MP7.0

[Uberderv 6]

You can fit the DW10 HDI engine with minimal wiring if you have the immo codes removed from the ECU. Bosch management and injection system is what your after. I am using a 90hp Citroën Xsara engine.

[Hilgie 16 2 Cars]

I would also choose the 306 or Xsara 90bhp HDI engine. It is non-multiplex, sits at the right angle and has all the right enginemounts. Whereas the 406 one sits on a different angle and uses a different gearbox and enginemount.

[unariciflocos 49 1 Cars]

I wouldn't be so scared about multiplexed wiring, yes it runs on a bus with digital communication but there's not much to it. I'd imagine you need the engine with all sensors, ECU, immobilizer, key and the dials cluster. Sure it will light up as christmas tree with all the things it's missing but I doubt the engine would go into limp mode just because it's missing its ABS or airbags.

 

If my Mi16 blows again my next engine will SURELY be a modern 1.6 HDi.

[welshpug 1,683]

Sure it will light up as christmas tree with all the things it's missing but I doubt the engine would go into limp mode just because it's missing its ABS or airbags.

 

I wouldnt be so sure about that

 

given the recent changes in out MOT legistlation, any illuminated warning light, or inoperative warning light, can result in a failure of the test.

[Rob Turbo 3]

You could just remove the bulbs though, the car doesn't have the features that the bulbs are for so they don't need to be there.

[jackherer 543]

given the recent changes in out MOT legistlation, any illuminated warning light, or inoperative warning light, can result in a failure of the test.

 

I can't see unariciflocos being very concerned with UK legislation

[welshpug 1,683]

possibly not, but I think I remember him mentioning he was in wales recently and it'd be wise to highlight such potential issues to others in the uk

[unariciflocos 49 1 Cars]

Removing the bulbs or blanking them should not be an issue, it's not like those features are actually on the car. I have alot of friends that have transferred multiplexed engines to older or other cars. All you need is the dash, immobilizer and keys(or maybe just the chip in the key).

 

And you guys don't know how easy you have it with your legislation. I can't register my car with the Mi16 in it and I can't MOT it legally. I'm using a loophole in the legislation to only barely use it legally claiming that I've only changed the head and that the block is the same as the one that came with the car from the factory.

 

I've also gotten a bit more familiar than I'd like to with UK legislation as last time I was over in Wales, November IIRC, I crashed the company car trying to avoid some moron on the motorway.

Edited February 13, 2012 by unariciflocos

[gsidave 3]

The engine sensors to the engine ecu are hard wired. The multiplexing is only between the ecus. Under the bonnet is the can hs to the bsi and the body ecu are can ls. At first it's a mine field, trust me I've been on enough Peugeot training courses to last a life time. But once you under stand French wiring diagrams it's easy.

 

And as for replacing and mi16 for a dv6 that's never a good idea.

[welshpug 1,683]

why not?

 

lots about and they dont seem particularly unreliable, probably has the same parts wearing out as any other modern commonrail diesel engine

[layton1985 5]

well to be honest I want the inside of the car and the outside to be standard I don't want another dash in there or even the clocks for that matter, and as far as I was aware any missing sensors and the car would not run properly as it all needs to talk to each other? could be wrong but seems like an awefull lot of messing for tiny bit more economy?????

[davev 1]

maybe im overlooking something simple here. but i didnt think any of the engine sensors used multiplex.

 

so couldnt you just use the engine and aftermarket ecu/wiring.

[welshpug 1,683]

well to be honest I want the inside of the car and the outside to be standard I don't want another dash in there or even the clocks for that matter, and as far as I was aware any missing sensors and the car would not run properly as it all needs to talk to each other? could be wrong but seems like an awefull lot of messing for tiny bit more economy?????

 

if you want to use the 90 hdi from a 306 they are not multiplex and pretty easy to wire up.

 

even if you get the intercooled 110, you can use the 90 ecu mapped to suit, I have seen a 136 hdi 16valve DW10 in a 306 but havent seen what ecu they are running it on.

 

aftermarket diesel ecu's aren't as cheap as the spark ignition ones as yet, you're talking a few grand not few hundred still.

[gsidave 3]

why not?

 

lots about and they dont seem particularly unreliable, probably has the same parts wearing out as any other modern commonrail diesel engine

Sorry Im just not a huge fan of dv6. After dealing with a few of them that have sludge build up and killing turbos off. And being unable to remove the injector put me off a bit.