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Topic: v24 Engine 2x died; no DTC's; no cause? (Read 816 times) |
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Cosray
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8th Scorpio, 2nd Cosworth: currently '95
 
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v24 Engine 2x died; no DTC's; no cause?
« on: Sep 1st, 2006, 8:47pm » |
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14 days ago while driving just after warming-up my engine cut out; local ANWB/AA couldn't find a thing; towed to my dealers.
Found a faulty R17 relay, the green/violet Rly Eng Contr responsible for the fuel injection system.
Everything fine again.
7 days ago engine cut-out again but with coughs and hiccoughs sounding like the old-days blocked carburetor. Just about made it off the motorway to a nearby petrolstation.
Starting yes, dying, no, sometimes; running on 3 cylinders, running 3 mins perfectly in a row and then dying: completely crazy and unpredictable.
Called in the ANWB/AA people there again; no clue. Towed to the dealers again. Been there since Monday now; running perfectly; no problem appararent.
WDS: no DTC's at all.
Checked/exchanged/tested: fuel pump, filter, constant pressure monitoring, everything fine. Exchanged CKP Crankshaft Position Sensor, nothing. Reset EEC.
Checked looms (new) isolated some wires to be sure, connectors, fuses/boxes, everything is dry, drains open, no water/oil spills.
They went for 2 days testriding, engine works fine, starting, running as usual.
WDS: no DTC's.
Until today, when key was inadvertently left in the ignition to ON for about 20 mins (engine not running): engine would not start again and stayed dead. Ha, a clue?
Of course it's weekend now. Any clues for the Monday?
Is it the EDIS/Ignition module heating up? The EDIS will be exchanged from another Cosworth on Monday.
Is it the EGR going mad?
What else could point to this erratic behaviour?
The dealers are at a loss, so am I.
Looking forward to any suggestion,
Ray
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howiedintheplace
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Based near Evesham
Posts: 1194
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #1 on: Sep 1st, 2006, 9:09pm » |
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So the fuel problem is now O.K you think & now you have a new problem as in the car will not start.
The engine turns over on the starter yes?
If you think it's related to the previous look at the crash fuel shut off switch & the WOT relay system.
If not is there any PATs codes flashing & have you checked all the fuses?
Have you checked to see if it sparks?
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Dave
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #2 on: Sep 1st, 2006, 9:17pm » |
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Thnaks Howdie, Yes unfortunately, most answers a yes.
Crash switch OK, what is WOT by the way?
Fuses all OK, checked 5 times over now.
No PATS problem, no DTC's, no engine dying again for 2 days -- but for today when key was left in the inginition to ON: engine would not start.
Since this happened just before Friday workshop closing I cannot answer the spark yes/No question yet.
Monday a replacement EDIS will be installed to eliminate that cause.
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howiedintheplace
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Based near Evesham
Posts: 1194
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #3 on: Sep 1st, 2006, 9:46pm » |
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WOT = wide open throttle.
If activated will cut fuel to the engine.
Yeah you need to see if it sparks so we can see what we are dealing with.
Otherwise there is about 101 answers 
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Dave
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #4 on: Sep 6th, 2006, 8:09am » |
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Still no DTC's available; engine still cutting out or not starting erratically like once a day, sitting in the workshop, being tested continuously by the chief engineer.
Following replacement of CKP, EDIS, Ignition Module the techs seem to have narrowed the problem down to Injectors sporadically not working, or at least erratically, unpredictably.
The circuitry between Battery, INJ and PCM/EEC-V is simple and straightforward, just wiring, and therefore the EEC is now suspect too.
Before ordering a new one, supposedly around € 900/no returns possible, do you have any suggestions how to exactly diagnose a faulty EEC?
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howiedintheplace
Senior Member
Based near Evesham
Posts: 1194
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #5 on: Sep 6th, 2006, 8:23am » |
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You say the engine loom is new yes 
Well that would be my next guess.
Could be ECU, get one from off here, alot cheaper.
This sounds like some silly fault, earthing to the engine, loose conection etc or something like that.
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Dave
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Spannerdemon
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #6 on: Sep 6th, 2006, 10:16am » |
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Have a look at your ECU.
This was mine after some torrential rain got down the loom, and into the connector.
http://i52.photobucket.com/albums/g25/xtr42gpnd/ECU2.jpg
Matches your symptoms almost exactly.
"engine cut-out again but with coughs and hiccoughs sounding like the old-days blocked carburetor. Just about made it off the motorway to a nearby petrolstation.
Starting yes, dying, no, sometimes; running on 3 cylinders, running 3 mins perfectly in a row and then dying: completely crazy and unpredictable. "
Hope you find the problem. 
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Simmo
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Posts: 5508
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #7 on: Sep 6th, 2006, 11:46am » |
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S/D your photo link won't come up. Says image deleted.
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Spannerdemon
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #8 on: Sep 6th, 2006, 12:52pm » |
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Hi Simmo.
Just checked on the link and it is working. Photo has NOT been deleted.
I've re-posted the link and hope it works for you now. Thanks .
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #9 on: Sep 6th, 2006, 2:30pm » |
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on Sep 6th, 2006, 10:16am, Spannerdemon wrote:Have a look at your ECU.
This was mine after some torrential rain got down the loom, and into the connector.
http://i52.photobucket.com/albums/g25/xtr42gpnd/ECU2.jpg
Matches your symptoms almost exactly.
"engine cut-out again but with coughs and hiccoughs sounding like the old-days blocked carburetor. Just about made it off the motorway to a nearby petrolstation.
Starting yes, dying, no, sometimes; running on 3 cylinders, running 3 mins perfectly in a row and then dying: completely crazy and unpredictable. "
Hope you find the problem.
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Thanks, will take your message + Pic to the engineers.
Ray
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Spannerdemon
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #10 on: Sep 6th, 2006, 2:35pm » |
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I was lucky as a member on this site had one for sale for £30.00
There are places that can repair them if that's your problem, and you can't get a replacement.
http://www.the-ecu-doctor.co.uk/
Hope you get it sorted out.
Veel geluk
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Simmo
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #11 on: Sep 6th, 2006, 2:51pm » |
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S/D . no problem now. Thanks, Mike.
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Spannerdemon
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Re: v24 Engine 2x died; no DTC's; no cause?
« Reply #12 on: Sep 6th, 2006, 6:46pm » |
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Yes. all Ok. Mystery that.
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