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Topic: runs when cold.. (Read 2288 times) |
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ALAN
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runs when cold..
« on: Sep 29th, 2010, 8:55pm » |
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Car runs for a while but when it gets warm it stops dead, if i leave the car a few hours it starts again if i switch it off it doesn,t restart until left a few hours again. Had diagnostic out and he said it looked like the edis module. I bought one of here and put it on only to call him out again as the fault was still there, he checked again and said the only other thing was the ecu unit which costs £250 for it to be checked. He did say if i get hold of another one he will test it here for me but i dont know if all the ecu systems are the same or differ from car to car etc, thanks for any info.
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Matt
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Manual'd and a 4.0 in the making
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Re: runs when cold..
« Reply #1 on: Sep 29th, 2010, 8:59pm » |
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alan if you can get to Birmingham ill put your car on my fds, that will tell you exactly whats up, where abouts are you located, if your not to far i can arrange to bring it up to you
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FDS2000 Scans - Birmingham
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ALAN
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I'm a YaBB newbie!
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Re: runs when cold..
« Reply #2 on: Sep 29th, 2010, 9:35pm » |
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I,m in stoke on trent about half an hour to an hours drive away, sorry i cant get the car to you but the way it runs it would take me over a week to get there, would gladly pay you for your time and trouble, thanks
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Highlander
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Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: runs when cold..
« Reply #3 on: Sep 30th, 2010, 10:23am » |
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Which engine is it?
on Sep 29th, 2010, 8:55pm, ALAN wrote:| he checked again and said the only other thing was the ecu unit |
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or the wiring between the EDIS and ECU.
Especially the signal from the ECU to the Fuel Pump Relay.
This signal provides a 12 volt supply to the pump safety switch and then to the pump.
This signal is provided from the EDIS unit to the ECU (black and white wire) and can be checked as follows: -
Pin 1 EDIS to Pin 48 PCM (ECU) - black and white
A four channel scope
Channel 1 EDIS positive - Ignition feed
Channel 2 EDIS ground
Channel 3 PIP signal
Channel 4 Crankshaft Sensor
Bypass the black and white wire between EDIS 1 and ECU 48 to eliminate this as a cause.
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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ALAN
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Re: runs when cold..
« Reply #4 on: Sep 30th, 2010, 12:40pm » |
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Hi, its a 2.9 24v cosworth. thanks
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: runs when cold..
« Reply #5 on: Sep 30th, 2010, 1:18pm » |
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Slightly different then, the above data was for the DOHC
Fuel Pump
The fuel pump relay (K4) receives voltage from the ignition switch (N27 and is controlled by pin 80 (pin 54 with passive anti-theft system (PATS)) of the PCM (A147). Pin 40 of the PCM (A147) is used as a fuel pump monitor input. Current flows to the inertia switch (N61) which shuts off the fuel pump in the fuel tank unit (A31) in case of an accident. The fuel pump runs constantly during normal operation, and the system pressure is preserved when the engine is shut off.
http://www.fordscorpio.co.uk/24vlooms.htm
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Cosray
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8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: runs when cold..
« Reply #6 on: Sep 30th, 2010, 6:16pm » |
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on Sep 30th, 2010, 12:40pm, ALAN wrote:| Hi, its a 2.9 24v cosworth. thanks |
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Hi Alan, not much hope here but to roll up your sleeves and get your soldering gun out + heatshrink sleeve.
Had all the 24v gremlins; read my earlier posts.
Do PM me for advice if needed.
Be sure to check and repair/replace wiring, wire by wire:
3-wire shielded EEC-V to/fro EDIS - replace, bypass incl. shield. The EDIS itself is almost indestructible; have two here if you need one for test.
Wiring from CPS into EDIS - just bypass old wiring, make sure to cut
Wiring to/fro coilpack 1-2-3 to EDIS
The engine compartment loom (which I had replaced in the end completely) is a female dog. It will break apart when you open to inspect it...
Do inspect the engine loom aka fuel cut-off loom.
They are all over minimally 12 years old (199 by now... and brittle and corroded by heat, moist and oil.
HTH
Ray
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Matt
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Manual'd and a 4.0 in the making
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Re: runs when cold..
« Reply #7 on: Sep 30th, 2010, 8:42pm » |
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Alan, pm me your address mate, i'll try and get up to you this weekend
Matt
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FDS2000 Scans - Birmingham
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: runs when cold..
« Reply #8 on: Oct 2nd, 2010, 7:03pm » |
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Hi all
just got back from Alan's, strange problem this one, had the car running all day on the FDS then when i decided to try and check the rest of the car, turned it off and then it wouldnt restart
first off when i started it there was an air leak, stripped the intake off and found the vacuum pipes form the manifold to the little T's detached, reconnected all and the engine ran beautifully
check the fuel pressures and what not with the FDS and passed
all electrical modules seem to be working ok apart from the fans on low speed however no fault codes for that and high speed works??
decided to check all fault codes and got fuel pump circuit faults, cleared all re tested and no faults so im assuming that was an old code that hadn't been cleared
while trying to get it started again i decided to interrogate the immobiliser system, the FDS threw up code D147 which is code 16 on the pats LED
seems to be a problem with either the immobiliser or the PATS module, Doesnt the Pats reset it self after a few hours, clearing any fault thus allowing the car to start again?
tried another ecu but pats stopped it working but by this time the batter was near enough dead and with only the master key working i didnt want to risk clearing the PATS and issuing new codes
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FDS2000 Scans - Birmingham
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scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
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Re: runs when cold..
« Reply #9 on: Oct 2nd, 2010, 8:19pm » |
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hi matt
sent you a pm.
regards
andrew
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Cosray
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8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: runs when cold..
« Reply #10 on: Oct 2nd, 2010, 9:38pm » |
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Hi guys, what year 24v we're talking??
Ray
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: runs when cold..
« Reply #11 on: Oct 2nd, 2010, 9:59pm » |
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P reg so a 96/7
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FDS2000 Scans - Birmingham
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Mike H
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Renault Clio
Posts: 2594
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Re: runs when cold..
« Reply #12 on: Oct 3rd, 2010, 5:50pm » |
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Was it the diagnostic guy took the T connectors off?
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Mike H
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: runs when cold..
« Reply #13 on: Oct 3rd, 2010, 6:20pm » |
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I dont think so, they looked as if they had been off for some time
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FDS2000 Scans - Birmingham
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: runs when cold..
« Reply #14 on: Oct 3rd, 2010, 6:32pm » |
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Curiouser and curiouser said Alice. 
Flexi pipes OK?
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Mike H
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: runs when cold..
« Reply #15 on: Oct 3rd, 2010, 6:35pm » |
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yep
only other odd engine thing i found was the breather on the air box was routed the wrong way and was crushed, but ive sorted that and again it looks as if its been that way for a while
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FDS2000 Scans - Birmingham
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Cosray
Full Member
8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: runs when cold..
« Reply #16 on: Oct 3rd, 2010, 6:38pm » |
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Those two T-bits - they come off as they sort of hang over the hottest part of the engine connected by plastic tubing that become brittle and shake.
Listen to any old BOB engine and you will hear this typical hissing... when you open the throttle... and they start sucking false air...
Ray
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Mike H
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Renault Clio
Posts: 2594
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Re: runs when cold..
« Reply #17 on: Oct 3rd, 2010, 6:44pm » |
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Can they be relocated?
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Mike H
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Cosray
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8th Scorpio, 2nd Cosworth: currently '95
Posts: 569
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Re: runs when cold..
« Reply #18 on: Oct 3rd, 2010, 6:46pm » |
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Certainly - I will put some pics up soon.
Here: http://bit.ly/dtdhB9
Ray
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: runs when cold..
« Reply #19 on: Oct 3rd, 2010, 6:48pm » |
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ive seen one with longer pipe work and the t's relocated above the intake, they are normally ok untill they are disturbed in some way, ive stripped enough bobs to know lol, most of the time they are broken when the breather hose is tugged in some way as the tubing runs under and over the t connectors
the problem isnt with the engine, i believe its an issue with the pats system not talking to the EECV
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FDS2000 Scans - Birmingham
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