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
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.
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' ?
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
"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
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
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
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
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.
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.
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 ?
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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posted on 11/10/12 at 06:42 PM
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.
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.
