Printable Version | Subscribe | Add to Favourites
<<  3    4    5    6  >>
New Topic New Poll New Reply
Author: Subject: "How to" OEM Focus ST170 ecu with Pats info.
Matteoman

posted on 24/5/17 at 05:22 PM Reply With Quote
Yeah I believe it was a UK car. In that case I imagine the guy who did my loom removed the pins by mistake. Im dead sure he had communication with the ECU when we first test fired it.
View User's Profile View All Posts By User U2U Member
big_wasa

posted on 24/5/17 at 09:22 PM Reply With Quote
More likley he used a base model obd2 plug.

You shouldn't need the Can bus to connect to the ecu via obd2. There is the other bus port.

View User's Profile View All Posts By User U2U Member
Matteoman

posted on 25/5/17 at 07:27 AM Reply With Quote
Oh right. So them 2 pins may not be needed to connect and view live data and codes?

If you don't mind me asking what diagnostic software do you use? It'd be good to see all the sensor data on a PC

View User's Profile View All Posts By User U2U Member
big_wasa

posted on 25/5/17 at 11:28 AM Reply With Quote
Yes I am sure it would use the scp bus.

Software, I usually use Torque on my android phone. I couldn't use my phone for obd2 and the video so I bought a cheap dongle from eBay and used the software on the disc. I've since given it away. I've now bought Forscan but I haven't had time to play with it much yet.

View User's Profile View All Posts By User U2U Member
Matteoman

posted on 25/5/17 at 12:01 PM Reply With Quote
Hmm I wonder why I can't connect then. Maybe the 3 readers i tried aren't compatible would of thought works snap on would do it though. I need to find out what Bluetooth dongle st users use and can confirm work
View User's Profile View All Posts By User U2U Member
big_wasa

posted on 25/5/17 at 01:43 PM Reply With Quote
Chinese nock off of an Elm427 from memory. Not all nock offs are equal.

If you have had three scanners on it with no luck then an Elm clone is not going to help.

Look at the wiring again. Double check wiring faults. Good power and earths.

View User's Profile View All Posts By User U2U Member
Matteoman

posted on 25/5/17 at 02:07 PM Reply With Quote
I've checked all the wires from plug to ECU and they are all connected I just don't have pin 14 and 6.

Maybe I'll try an elm reader. As I don't see any other reason it won't connect. Power and earths are fine I checked them too. The engines fully running and full Imrc control so I imagine it's probably happy but I want to see sensors

View User's Profile View All Posts By User U2U Member
filstu

posted on 6/6/17 at 11:22 AM Reply With Quote
Hi Big_Wasa. Great work. i have been working through your guide and the ford wiring stuff, so far so good however my fuse box loom was cut when i received it and i cannot find the IMRC control plug or wiring! whereabouts is it located on the loom do you recall?

A couple more questions, what did you do about the canister purge solenoid and associated parts to prevent throwing codes? you mention a load or mil circuit? but i cant find any more info?

The engine is going in a Haynes roadster project

View User's Profile View All Posts By User U2U Member
big_wasa

posted on 6/6/17 at 03:51 PM Reply With Quote
Hi, from memory there is two really big square plugs near the base of the fuse box, grey and the other brown. Joining into his is the imrc plug on its own, fairly long lead from memory around 30cm.

The canister purge is just a solenoid, power and switched earh. I put a resistor in there so the ecu can see a load. I am working on one at the moment so I may look into that further.

View User's Profile View All Posts By User U2U Member
filstu

posted on 7/6/17 at 10:49 AM Reply With Quote
Awesome, looks like the loom I have was cut below that connection &#9785;&#65039;Managed to get a connector from eBay. So I just need to solder a resistor between the purge solenoid pins? Do you remember the value?
Just one more question. The diagram I have seems to show eldis supply from ignition not k13. Is that as you recall or is it best to go to the 30a side of K13?
Thanks for the invaluable help&#128079;&#128077;

View User's Profile View All Posts By User U2U Member
Davelarcs

posted on 23/6/17 at 06:52 AM Reply With Quote
no signal to injectors

Hi all

I've got a problem with no signal to the injectors

I'm turning the engine over directly from the starter soleniod, got spark, fuel pump is running as it should, i.e. its runs briefly when ignition turned on, then runs while engine cranking.

IMRC does'nt seem do do anything, but if I'm correct, it does'nt come in till after 5000 revs?

I've got a good 12v to the injectors, but the ecu is not grounding them, I've double checked all wires from injectors are back to ecu as they should be.

I've checked the grounds from the ecu as per the pinout are sound.

I must be missing something simple here, I know the ecu was a runner, as I broke the st170 it came out of, and it ran.

Still unsure about a couple of wires: Start inhibit relay pin 27 & engine run relay 46 (I guessed that these are bypassed) thried earthing both but no difference.

I've even hot wired injector 1 to spay some fuel in, and then the engine is trying to fire, so ignition side seems fine.

Can't get the obd reader to connect either, which would help a lot.

Any help will be much appreciated, ta.

View User's Profile View All Posts By User U2U Member
big_wasa

posted on 26/6/17 at 03:46 PM Reply With Quote
I am told the ignition circuit is not immobilised, never tried it. Injectors are and your bypassing the starter. Sounds to me like its immobilised. What's the pats indication light doing ?
View User's Profile View All Posts By User U2U Member
big_wasa

posted on 26/6/17 at 03:49 PM Reply With Quote
quote:
Originally posted by filstu
Awesome, looks like the loom I have was cut below that connection &#9785;&#65039;Managed to get a connector from eBay. So I just need to solder a resistor between the purge solenoid pins? Do you remember the value?
Just one more question. The diagram I have seems to show eldis supply from ignition not k13. Is that as you recall or is it best to go to the 30a side of K13?
Thanks for the invaluable help&#128079;&#128077;


Sorry I missed this. I don't use the donor fuse box.

View User's Profile View All Posts By User U2U Member
Davelarcs

posted on 26/6/17 at 04:04 PM Reply With Quote
Hi Big Wassa, thanks for the reply, the imboliser light is flashing when ingition off, when flick switch for ignition, it goes solid for a few seconds, then goes off.
View User's Profile View All Posts By User U2U Member
big_wasa

posted on 26/6/17 at 07:48 PM Reply With Quote
Yep that's what it should do.
View User's Profile View All Posts By User U2U Member
big_wasa

posted on 27/6/17 at 09:27 AM Reply With Quote
My next guess would be crank sensor. If the ecu doesn't see the engine turning over it won't put fuel in.

Check the wiring on this.

View User's Profile View All Posts By User U2U Member
Davelarcs

posted on 27/6/17 at 01:46 PM Reply With Quote
I'll double check that later, but it I am getting a regular spark, so presumed crank sensor ok?
With the engine run relay & inhibit relay, I've presumed that I can bypass these, and have Ignition live going straight to the ecu, and I'm hot wiring the starter for now just to see if it'll run, how do these normally link up? are they controlled by the ecu?

I've seen elsewhere that the start relay is spliced (ecu pin 32) to the knock sensor, I've not got anything other than the ecu from pin 32 connected to this? I can't immagine why this would be, but starting to grasp straws now.

[Edited on 27/6/17 by Davelarcs]

View User's Profile View All Posts By User U2U Member
Davelarcs

posted on 28/6/17 at 06:18 PM Reply With Quote
SORTED!! WOO HOO!!

After a fair bit of checking wire for wire, I discovered that ford in their wisdom made the plug for the fuel pressure sensor the same as the one for the T.P.S. mix them up and it wont work strangley enough .

Starts and revs up ok, no cooling set up yet, so only a quick fire up. Much happiness.

Thanks again for your input.

View User's Profile View All Posts By User U2U Member
<<  3    4    5    6  >>
New Topic New Poll New Reply


go to top






Website design and SEO by Studio Montage

All content 2001-16 LocostBuilders. Reproduction prohibited
Opinions expressed in public posts are those of the author and do not necessarily represent
the views of other users or any member of the LocostBuilders team.
Running XMB 1.8 Partagium [ 2002 XMB Group] on Apache under CentOS Linux
Founded, built and operated by ChrisW.