Hi Simon,

I assume you know that you know the Focus ST170 dash clocks are driven by a data bus network out of the Black Oak ECU?

I had big problems in the summer when I put a ST170 on throttle bodies and aftermarket management, I kept the fuel, water temp and speedo working but couldn't get the tacho. I made a splitter loom to share the crank sensor signal going into the two ECUs but not joy, I reconnected the cam sensor, no joy. In the end I had to fit a STACK to get things moving (plus he was revving higher than standard anyway!).

Hope you can get it sorted though!

 

some good info there mate . i was looking at the STACK stuff my self last night

 

Will be playing around with dashes , i have a standard one , the ST one , and the RS one so there is plenty of scope , but thanks for the heads up.
Pretty sure you need to run 2 sensors off the crank pulley (for the ECU and rev counter) mounted in a twin WRC crank sensor bracket.
Any aftermarket speed sensor will probably be required to run the Tacho.
All good fun lol

 

simon ,


could you post pics of the three diffrent dash clusters mate ?

just curious


beef

 

+2

jason

 

the focus dash will run on the databus output from ANY focus mk1 ECU as hes found.

what he is trying to do is fool the ford ecu enough with inputs to put the datastream operational. doesnt matter if the ecu is stuck in LOS and shits out loads of fault codes.

EECV ECU's determine engine rpm from the crank sensor which outputs an analogue sine wave which is converted into a digital PIP signal in the ecu and its that PIP signal thats necessary so the ecu knows the engine rpm/crank position.

in theory from what ive found out on late EECV the crank position sensor is the key. camshaft position is not essential as the engine will use last stored data and go into LOS reducing performance. There is no logical reason for ECU LOS to kill the dash data stream.....

the reason he needs 2 crank sensors is because the ford and webber sensor on cossies work differently so are not compatible.

the key with this project is what sensor inputs are necessary on engine start up for the data stream to the dash (or in theory WDS2000 equipment) to start and hence the dash to function correctly.

so far its crank position sensor that seems to be the key.

yes its a bit of experimentation to do it, but when it costs in real terms pennies to play around and just your own time then why not have a go?? especially when you consider the cost of a stack dash!!

I will be getting a st170 dash running on my car eventually.

 

oh and speed sensor wise, the standard focus speed sensor fits into the speedo cable thingy on the 4x4 sump. so thats not difficult to sort.

Will i think splitting the crank signal is where it went wrong. If you think from the ECU sensor input point of view, if everything is connected to the ECU then it knows no different. its only when certain sensors are missing that it picks up faults on its own internal checking software and spunks out fault codes and initiates LOS if its bad enough.

even worst case you could fool the ecu CCM software by fitting a voltage output to the missing circuits but even so you shouldnt need to do that as long as the key sensors for the engine (namely Crank position) are hooked up.

maybe its a anomoly with blackoak being more advanced than standard EECV despite still being based on the EECV architechture??

 

QUOTE " Will i think splitting the crank signal is where it went wrong. If you think from the ECU sensor input point of view, if everything is connected to the ECU then it knows no different. its only when certain sensors are missing that it picks up faults on its own internal checking software and spunks out fault codes and initiates LOS if its bad enough. " QUOTE


Thats the key issue , keeping everything in situ and the ecu's know no different.

That way the focus ecu and the cosworth ecu happily work parallel.

 

wot a lot of info mate i think after all that i will have to look at iver a set of escort clock,s i have or go STACK or you could allways come down to Birmingham and do the mods for me i do make a nice cup of tea

 

as requested,







Dont have the RS clocks to hand but will get more pictures up later and of the ST170 clocks fitted and working properly! ;o)

 

Ford speed sensor in cossie 4x4 speedo cable thingy:



LOL would want to get it working before promising to fix other peoples cars up.

the problem with this kind of mod is in an ideal world youd just speak to the software designer for ford and he would tell you exactly what parameters need to be met for the ECU to commence datastream communication. Unfortunately we dont have that so its best guess and experimentation based on what is available about the fault modes.

 

Found this...... was an interesting read.

http://www.emeng.gentlyhosting.co.uk...SpeedTrans.htm

 

Simon,
Good to see it coming along nicely mate. Out of interest, what is that EL gadget stuck on the back?

 

The st170 dials are electro-luminescent and the power pack for them is contained in the oil pressure/temp pod. If you aren't using this oil pod then you need to use an aftermarket power pack, to make the dash lights work

 

Got a link for them as they might cross over to the escos??

 

Kev , they light up the ST170 exactly the same as the escort cosworth dash's .

 

Youll need one of these to covert the cosworth speedo drive .


http://www.merlinmotorsport.co.uk/p1...duct_info.html

 

There is a Ford part that will do the job, EECIV Escos have them and so do DOHC Sierra 4x4x's. It screws onto the speedo drive and the cable screws onto the top of that. I will see if I have a pic.

 

Yes please Martin , a picture would be great!

Just need to convert the speedo drvie into an electrical impulse.

 

do i win

i was at your mart when you sold one to a lad

 

They make two types of body, one simply screws onto the speedo drive and provides a signal the other is exactly the same but instead of being blank on the top has a thread that accepts the speedo cable.



The one above is oviously the type that doesn't have the speedo cable fitting on top and is off a Focus as I recall, I can't find a pic of the other type. Edited to say Ian has posted the other type I'm talking about.

 

Fantastic , thats the one! Dont suppose you have a part number for the part youve pictured? Many thanks Martin

 

Youre all winners! LOL (how gay!)

 

95BB-9E731-BA It would probably be a fortune from the dealer but breakers sell them very cheaply.

 

They are infact Ł102.42 inc VAT from fords and they fit Mondeos 96-07 .

 

It will fit very nice in my pocket when im next in the tat yard

 

A tenner from a breaker though.

 

A trip to the breakers this afternnon then! lol

 

Good luck too ya Simon ive just tried to get up the road by me in birmingham and the fucking gritters aint been out
Roads like a ice skating rink

 

Dave get the sledge out for you bab Sorry we dont use them in Birmingham we use black bags much better

 

Stayed home and fitted the ST170 clocks instead!

Here they are fitted.........



All powered up...........



And lastly the all important back lighting, woking perfectly without having to use the ST170 loom or Oil gauges.

 

Very nice mate

Any functions that won't work on the digi display??


Saying that, you really wouldn't want your live mpg showing would you!!!

 

"EVERYTHING" works perfectly kev,

Fortunately the dash doesnt disply live mpg, that displayed in a seperate digital display only found on the focus ghia models.

 

But after all that , ill probably end up fitting these to match the rest of the interior .......

 

Mint!!

What are the problems fitting the RS one, there must be some ? Does it need the matching ecu too??

 

Should swap straight over apart from the boost gauge - just plug n play , only thing youll not have is a temp gauge , but i have a way of getting round that.

 

I'm surprised you were taking the time to fit ST clocks if you could get RS clocks that actually suits the RS styling and interior. Get it fitted! The boost gauge isn't very accurate on a Focus RS anyway, so maybe you can adapt a temp gauge there instead, someone else has done something similar on here....can't remember who though

 

Yeah , "IF" i go down the route of the RS clocks, a temp gauge will replace the RS boost gauge .

 

looking very nice i do hope this work as very soon im going to start cutting my loom and getting rid of wot i dont need

 

focus 4x4 as said in pm do NOT buy an aftermarket speed sensor when a free second hand ford one will do!!

if your loom hasnt been fully cut up yet then the wiring might still be there.

that working dash pic, was that in your focus mule or the cossie engined one??