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You can piggy back the focus ecu just the same as any other aftermarket ecu, you just can't tune it as easy.
It's not just a case of sticking the full focus loom in as the systems "could" talk to each other.
Abs being the first to come to mind.
How many pins did the Fiesta ecu have ?
why not?
abs won't he an issue,
Fiesta sensors twisted onto focus abs wires.
drive shafts are same so even 1 rotation is the same.
EDIT: Wast ment to sound bitchy, genuinely want to talk it out for when I get round to this conversion
Hi guys.
ive been away for a while. Sorry i havent updated for a bit.
i have been a monumental numpty. Blindly chopping up my looms was a catastophic mistake.
Gonna have to source more looms now. Such a prat. Oh well, it is what it is.
To be honest i feel id be better off hiring someone who knows how to combine both looms and piggyback the ecus. Im totally lost on this. Once the wiring is out of the way and the car fires up off the key, ill be plain sailing the rest of the way. I just desperately need some help with the electrics
Hey all, I'm going to be undertaking this project soon and all this information has been so useful for me, just wondering JOBE exactly what alterations did you make to the top engine mount? And if you could let me know when you find a solution to the wiring problem that would be a massive help also!
thanks! Hywel
Hey mate. The top engine mount is a combination of fiesta and focus. The plate part of the fiesta mount and the rubber part of the focus mount go together. Before they go together, you have to drill the hole about 1mm bigger because the bolt from the focus half is a bit big. Once its drilled they just bolt together.
The studs that hold the engine to the mount in the focus are too short in the fiesta. The engine womt sit level and the lower gearbox mount wont line up. I bought some 6 inch high tensile M12 bolts off ebay and made a pair of 2 inch spacers. I dropped the engine down from its mount and used the spacers between the engine and mount. The longer bolts are too long so i used the nyloc nuts from the original focus studs and used them on the new long bolts. Works fine. Could cut off the excess but its not causing any issues. Hope this helps
Ive been having a think and i decided that i my plan of attack with regards to the wiring is to remove my entire dashboard, and fit another focus zetec engine loom and focus dash loom into the fez. Look into modifying the dashboard to accept the focus clocks. Seems to be the simplest, and ultimately, most reliable way around this, (at least in my head).
Does anyone know how to remove the entire dashboard?
Ive been having a think and i decided that i my plan of attack with regards to the wiring is to remove my entire dashboard, and fit another focus zetec engine loom and focus dash loom into the fez. Look into modifying the dashboard to accept the focus clocks. Seems to be the simplest, and ultimately, most reliable way around this, (at least in my head).
Does anyone know how to remove the entire dashboard?
take a look at the amount of wires that will need shortening or lengthening. Just one or two faults could leave you fault finding for ever.
The abs ecu is attached to the pump. Has it got the same plug as the focus ? Will it talk to the body control unit ? Will the wheel speed sensors talk to it ?
Will the fuel sender match the dash ?
This is just a few examples, there will be dozens.
I am not saying it won't work, I am not saying it can't be done. But trust me when I say this is a shit load of work and I play with these as a hobby.
There will be issues but shortening or lenghthing wires when your cutting and splitting wires is neither here or there.
abs pump and other shit like that can be left aside or even deleted from the car.
aslong as it runs everything else can be tweeted one by one afterwards.
what about if you used fiesta loom and just wired focus plugs into it? Would that work?
or would parameters be off? Under fuel and the rest
The easiest way in the my mind (not the cheapest) is to use the existing fiesta loom, change whatever engine loom plugs you need to and then put a syvecs/life racing ECU in.
I spoke to the tuning place I use several years ago and they were chopping the ECU multi-plug off Lamborghini ECUs and putting life racing on. Easiest way to get full control and more features.
If im honest though, I'm not looking to use aftermarket ECU's. At least not yet. Maybe in the future if I decide to go turbo or something. For now though, I'm looking to just stick to the original Focus setup. Speaking of which, I went down the route of using the focus clocks. Not a perfect fit, because 2 of the dash lights on each side of the cluster are hidden behind the dash itself. It's not worrying me, I'll find a solution for that when the cars running.
Ordered a focus mk1 1.8 zetec dash loom of ebay so when that gets here, i'll have a look at what the next step is.
I personally think the clocks suit the dash quite nicely
Ive already cut away pretty much everything that wa behind the original clocks. I cant see what else to cut away without compromising the appearance of the dash itself. One solution i could do would be to install additional lights into the dash somewhere and loop wires off the clocks.
Hey guys. A sad day has dawned. My landlord is selling my home so i have 3 months to leave. As a result of this I am forced to abandon my project Fiesta. Is anyone interested in buying it for cheap to carry on? Itll break my heart more to have to scrap it.
I dont know if i can take it with me. We dont know where we're going to live yet. Id rather someone else carried on and finished it because if i cant take it with me i may well be forced to scrap it. Im near Stroud in Gloucestershire
Mate that’s bad news. I used to live in nailsworth. There’s loads of land around there for vehicle storage. Stash it for a month or 2 over winter then crack on when you’re sorted
So gutted to hear your news man! I really hope you're able to carry on with the build after your move, would be extremely gutting to have to bail after coming this far
Hey all. Been away for a while. House issue all sorted. Managed to stay local and am able to keep my little fez. Happy days.
In light of what was going on before christmas I haven't done anything else to the fiesta. Also the weather being as crappy as it has been lately hasn't really been encouraging. I'm waiting for it to warm up before I crack on.
Speaking of cracking on, is anyone on here any good with wiring? I'm completely stuck on the wiring side of things and could really use some help, preferably in person. I'm happy to provide tea, coffee, beers, and lunch
I'm not giving up. Not after coming this far. Do you know of a member on here that I can talk to about the wiring issue I'm facing?
I would love to get this car finished and take it to a ford meet.
Now we have some clear skies I'm going to get out there today and see if I can tackle any of the wiring.
I bought a complete focus dash loom so I reckon swap out the fiesta dash loom for the focus one for now.
Its all educated guess work at the moment.
Stumbled across this thread as I've started my 1.8 conversion. How have you been getting on with the wiring? I'm also running the newer siemens ecu in my fez and not far off starting to wire everything to work off the older focus ecu. Luckily I've been able to get hold of some pin outs of both ecus and looks pretty straight forward. If you need any diagrams give me a shout and I'll be happy to pass on what I have.
Stumbled across this thread as I've started my 1.8 conversion. How have you been getting on with the wiring? I'm also running the newer siemens ecu in my fez and not far off starting to wire everything to work off the older focus ecu. Luckily I've been able to get hold of some pin outs of both ecus and looks pretty straight forward. If you need any diagrams give me a shout and I'll be happy to pass on what I have.
Hey pal. Not really having any joy whatsoever with the wiring Its totally beyond my capabilities to be fair. Yes please buddy, any help would be greatly appreciated ☺ Thanks
I have an interesting project that ill soon be undertaking.
I have a near mint 2003 mk6 fiesta finesse and have been given a mechanially sound and cosmetically battered 2001 mk1 1800 focus zetec.
I am really keen to put the zetec in my fiesta. I know im likely to hear "why not just put an st150 engine in it". Answer is, id rather do something a bit different.
Theres virtually no info online about this conversion even though some people seem to have done it, so im trying to put together a thread to help myself and others who fancy the same conversion
What engine mount can be used?
Is the standard IB5 gearbox ok to use and does it bolt straight onto a zetec?
Any other info you guys could add to the thread would be greatly appreciated.
Thanks in advance
Hi im currently fitting a st170 engine and gearbox to a mk 6 fiesta diesel. I’ve found that the drive shafts are exactly the same length and the shafts fit the hub too, the engine and gearbox mounts do need some editing, I’m going to try to combine the focus and fiesta engine mount first (by the cambelt) however if this isn’t successful I’ll cut out the mounting plate from the focus and weld it on to the fiesta o/s chassis leg, the top gearbox mount looks simple enough, the rear gearbox mount on the focus is mounted horizontally to the subframe where as the fiestas is vertical so I’ll either try to fit the fiestas mount to the st gearbox or alter the subframe to accept the focus mount. Bit complicated but looks doable.
27-09-2017, 06:00 PM
update
I'm back
