quote:Originally posted by Lingy
Would i not need the dash loom then?
I dont think it will be needed. You could add sensors for your dash or you can get gauges that run the can-bus system, scan dash is one that springs
to mind.
quote:Originally posted by Lingy
What sort of money would it cost to get a loom sorted
For my mk1 ?
Not got a scooby doo as I havnt got this one done yet. I just dont know how happy the ecu will be with out talking to the other systems on the
Can-bus.
Ive just bought 20 meters of heat shrink tubing so I can start hacking into the loom this weekend depending on work.
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Building: Cyclone with FRP engine -now registered!
posted on 12/10/12 at 10:11 AM
Hi big wasa, got my TIS off ebay like you many years ago. Not the easiest thing to navigate but there is a lot in there if you can find it. I found
the 'connector view' particularly useful for tracing all the plugs and selecting what to eliminate.
Brilliant ,I have the engine ready to go in ,Just been modding the sump and
Mounts ,Long way off yet,Just wanted to ask incase you had got any further with it ,
Good luck with this Warrenl, Ill be watching with intrest ive just brought a St170 to fit into my roadster but im planning on Jenveys and Omex for my
install next winter.
Carl
Logic will get you from a A to B
Imagination will take you everywhere.
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.
How will you byepass the dash /Petrol pump and all the other sensors etc ?
Surely It will only ever run in limp mode while the ecu is looking for the sensors ?
Most of the dash gets its info by canbus by the same conection from the ecu as the obd2 port. For a bench engine I can conect a bluetooth dongle and
have a vertial dash on a tablet pc and use the Torque software. Or being cheaper I can wire it up to the garage pc like I did with the dta.
In car you could run one of the obd2 style dials or add extra sensors for any dials you like.
Fuel pump, Ive been looking a lot at this and have butchered a perfectly good st170 pump to see what makes it special. The answer is not a lot.
You have a pump and a one way check valve. There is a tube down to a bit of plastic with a tiny tiny hole that looks like it bleeds the presure in the
pump when its not running.
The St170 Is returnless for emissions reasons. It has a driver and a fuel presure sensor in the rail.
My plans for the fuel system are an external setup, so out of the tank / swirl pot into a filter, to a pump to a check valve to a filter and to the
fuel rail with the st170 driver running the pump and the ecu controling the driver.
Drivers are cheap and fuel presure sensor comes on the fuel rail so hapy days.
Its still early days as untill I can get an engine and bench run it I cant tell if the ecu will need any info from other items along the can bus.
Unlike older fords there is very little in the way of emisions extras to mess about with. No egr ect. So I am using nearly all the sensors found on
the engine. I will bin the canister purge and give the ecu a dummy load.
Its just what reading up lead me to believe ,I know nothing about car electrics
What you have done already is way beyond me ,Good work ,Its a pity theres no one local to you who has an ST
To test it out on .
I am going to try ,I have been talking to a guy who is using his ,Although hes stripped a few things off it to get it to fit upside down
I just need some longer 50mm silicone ,Im not sure i can use it if i have to connect everything up
^ this has to come off and the holes will need sealing ,Any idea what it is
Also the air tract lever needs to be locked fully open ?
Using the oe loom hopefully these parts are s not needed ? Or its got to be aftermarket ecu
Yeh there needed. The first item is the idle control valve and if the dsi doesnt work it will go into limp home mode and if you make the ecu think its
working the map will give you no bottom end torque.
