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Author: Subject: St170 fuel injection on a budget project.
big_wasa

posted on 22/9/12 at 06:34 PM Reply With Quote
St170 fuel injection on a budget project.

I thought I would start a thread on getting an St170 engine to run in a kitcar using its own ecu.

Yes I know you can stick bike carbs on it ect but you wont do it as cheap as this and get the same level of emissions imho.

Budget so far 45 BUT I DONT HAVE THE ENGINE YET

1hr's Work. Can I turn the immobilizer on and off.....Answer YES



A good start but lots and lots of work todo


[Edited on 22/9/12 by big_wasa]

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slingshot2000

posted on 22/9/12 at 07:04 PM Reply With Quote
Thats looking very good. I will be following this very closely !

Regards
Jon

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rhinopower

posted on 23/9/12 at 03:12 PM Reply With Quote
Pointless exercise, the st170 uses a return less fuel system, and also uses a special controller to run the fuel pump, plus you would have to use the standard inlet with the inlet manifold runner control. Leave that off and it will be stuck in limp mode, plus the fact it runs 2 lambda sensors.... A friend ran it on standard mondeo ecu with the inlet cam timed up for full lift @ 110 degrees and it made 155bhp no problem
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sebastiaan

posted on 23/9/12 at 03:50 PM Reply With Quote
Good work!

The returnless fuel system can very probably be used as-is (yes, with a different tank) or replaced by a simple system WITH a return at a set pressure. Running just the upstream lambda will probably throw a code but I have never seen cars go into limp home mode for such a simple fault.

Keep at it, no matter what the critics say!

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big_wasa

posted on 23/9/12 at 05:02 PM Reply With Quote
quote:
Originally posted by rhinopower
Pointless exercise, the st170 uses a return less fuel system, and also uses a special controller to run the fuel pump, plus you would have to use the standard inlet with the inlet manifold runner control. Leave that off and it will be stuck in limp mode, plus the fact it runs 2 lambda sensors.... A friend ran it on standard mondeo ecu with the inlet cam timed up for full lift @ 110 degrees and it made 155bhp no problem


Why pointless ? most would say the eec your mate used was pointless when he could have megasquirted it.

Yes its more complex and has pre and post O2 sensors and a seperate fuel pump controler but I again dont see why that is a problem ?

Out of interest was the 155 at the wheels or at the fly' ?

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rhinopower

posted on 23/9/12 at 05:11 PM Reply With Quote
The ecu was already fitted as he had a normal 2.0 fitted before. 155 was at the flywheel. Most st170's only make 160 on the dyno anyway if your lucky. Most of the stuff that's used for emission control is where it loses its power
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big_wasa

posted on 23/9/12 at 06:03 PM Reply With Quote
Yep I know they vairy on the rollers 155-170.

I shall see what bhp/ I get compared with my zetec E on standard mangment,

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big_wasa

posted on 30/9/12 at 05:21 PM Reply With Quote
The real work has started on stripping the loom to reduce it.

starts here.


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James

posted on 30/9/12 at 09:56 PM Reply With Quote
Great work!

Favourited- keep us updated!





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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights." - Muhammad Ali

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snapper

posted on 1/10/12 at 05:49 AM Reply With Quote
Loom looks like a job and a half
Keep at it, if you hit problems I'm sure you'll bounce back

Sorry ill get my coat





I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)

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Lingy

posted on 1/10/12 at 08:44 PM Reply With Quote
This is very interesting to me ,As i am fitting an ST 170 into my mk1 Cortina
I have the full engine loom key transponder etc
I want to use the ecu to control the vvt ,I would be happy with 170 bhp
Please keep us updated

P.S i joined ages ago but cannot log in on the other account

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big_wasa

posted on 1/10/12 at 08:52 PM Reply With Quote
Where in the world are you ?
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Lingy

posted on 1/10/12 at 09:32 PM Reply With Quote
Coventry
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Lingy

posted on 10/10/12 at 04:11 PM Reply With Quote
Any progress?>
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big_wasa

posted on 10/10/12 at 07:50 PM Reply With Quote
yes busy beavering away when I find time.

First job, let the dog see the rabbit.

There are four looms in the engine bay. The main car loom and three for the engine. Its these three ive started on. There is only two on the <2000 mondeo and other than a couple of extra plugs thats all you need. So Ive stripped back the three sub looms.



I am now tracing back from the ecu the 104 pins



Where I am now at.

The wires I havnt traced yet seem to go to a telemetrics modual. Ie can bus. More reading to do

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Lingy

posted on 10/10/12 at 10:17 PM Reply With Quote
I have the full loom key transponder ,even the steering column ,(I also have a spare injector loom off the engine ) I would not know where to start lol

I hope you sort it though ,Would save people a load of cash

[Edited on 11/10/12 by Lingy]

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Rob Allison

posted on 11/10/12 at 10:06 AM Reply With Quote
Just as a pionter. Dont remove any sensors that you think it doesnt need. Ford have this nasty LOS system and it put the ecu in limp mode with sensor failure.
Your also going to have to fit the gearbox speed sensor and the full inlet system as it needs to see the VIS valve working.

If you get it done and worked out then its a good one for anyone wanting an engine to pass the IVA, emmissions are good on the st and the cat can be placed much further from the engine and still work.

I have a full spare loom, ecu and key from mine






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big_wasa

posted on 11/10/12 at 04:38 PM Reply With Quote
Yep that is the challenge. Its not if it will run, its if I can keep the ecu happy to make it run at full power.

I want to keep the vvt and the dsi. There is no egr as the vvt is used to cut the overlap on the bottom end of the revs. I will run the vss from the mt75 gearbox sensor. It works great on my eecv.

The second o2 sensor should be fine with a decat if I make up a mil eliminator ( 1 resistor + 1 capacitor ).

About the only sensor I will ditch is the evap purge valve, if that thoroughs a mil I will make the ecu think its there.

It then comes down to lack of com's with the other systems along the can-bus.

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big_wasa

posted on 11/10/12 at 04:41 PM Reply With Quote
quote:
Originally posted by Lingy
I have the full loom key transponder ,even the steering column ,(I also have a spare injector loom off the engine ) I would not know where to start lol

I hope you sort it though ,Would save people a load of cash

[Edited on 11/10/12 by Lingy]


Have you got the loom between the ecu and the dash ?

[Edited on 11/10/12 by big_wasa]

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AndyW

posted on 11/10/12 at 04:55 PM Reply With Quote
Good to see you have another system to work on. I remember people saying it could not be done with the standard ecu on the blacktop!!! Will be good to see the start up vid....
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Lingy

posted on 11/10/12 at 06:08 PM Reply With Quote
No i have no dash loom ? I have been told its needed for the sensors in the dash
Is that right?

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johnH20

posted on 11/10/12 at 06:42 PM Reply With Quote
Just been going through this elimination process on my Puma loom. I found it easier with the help of Ford TIS wiring diagrams to start with all the plugs rather than at the ECU end and eliminate the obviously unwanted. A top tip from a member on here is to watch out for switches like PAS pressure and possibley A/C where the switch must be in the normal not loaded condition to avoid over fuelling and other effects.
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big_wasa

posted on 11/10/12 at 07:37 PM Reply With Quote
quote:
Originally posted by Lingy
No i have no dash loom ? I have been told its needed for the sensors in the dash
Is that right?


The dash on the st is nearly all can-bus so very few sensor of its own. It gets rpm coolant temp ect along the bus.

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Lingy

posted on 11/10/12 at 07:42 PM Reply With Quote
Would i not need the dash loom then?
What sort of money would it cost to get a loom sorted
For my mk1 ?

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big_wasa

posted on 11/10/12 at 07:44 PM Reply With Quote
quote:
Originally posted by johnH20
Just been going through this elimination process on my Puma loom. I found it easier with the help of Ford TIS wiring diagrams to start with all the plugs rather than at the ECU end and eliminate the obviously unwanted. A top tip from a member on here is to watch out for switches like PAS pressure and possibley A/C where the switch must be in the normal not loaded condition to avoid over fuelling and other effects.


I did buy an eblag copy of the Tis years ago and it was naf. Ive been using a copy of autodata on the mondeo looms, that has been a life saver but there isnt a huge amount on the St.

Any chance you could point me in the direction of where you got yours ?

Yes the load switches can do funny things, ive got a couple that are differant on the st to what I have done before so I may go back and check them out.

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