OK, Who knows much about EECIV edis then?
13-07-2005, 09:59 PM
#1
20K+ Super Poster.
Thread Starter
OK, Who knows much about EECIV edis then?
just had a call from lennie (who has got my car for a few days whilst i'm im in dublin) and aparently after he picked the car up its started to miss quite badly. will die when idling etc. sounds to me like ts either running on 5 or 4 (remember, v6 )
now if it turns out its only running on 4 and the 2 not firing ll happen to be on the same coil (coilpack x3 wasted spark) wht "bits" will need to be looked at? wht bit of wiring, connectors etc.?
obviously the edis unit itself nd the coilpack itself, but my car is notorious for bad wiring, so that would be 1st place to look...
anyone know how the edis "talks" to the coil and could use that info to work out how to trce a wiring fault if its not firing 1 of the coils?
OR is it case of it will NEVER fre only 2/3 of the coils even if it get a bad signal, therefore the coilpack must be knackered? (or a plug/lead is fooked)
OR my engine just lost a piston
doubtfull tho
now if it turns out its only running on 4 and the 2 not firing ll happen to be on the same coil (coilpack x3 wasted spark) wht "bits" will need to be looked at? wht bit of wiring, connectors etc.?
obviously the edis unit itself nd the coilpack itself, but my car is notorious for bad wiring, so that would be 1st place to look...
anyone know how the edis "talks" to the coil and could use that info to work out how to trce a wiring fault if its not firing 1 of the coils?
OR is it case of it will NEVER fre only 2/3 of the coils even if it get a bad signal, therefore the coilpack must be knackered? (or a plug/lead is fooked)
OR my engine just lost a piston
doubtfull tho
13-07-2005, 10:02 PM
#3
BANNED
BANNED
iTrader: (1)
Join Date: Jul 2003
Location: Wiltshire
Posts: 12,483
Likes: 0
Received 0 Likes
on
0 Posts
try this web site jimbo ...
http://www.bgsoflex.com/mjl/mjl_edis_summary.html
or this one...
http://www.dainst.com/info/edis/edis.html
Saves me explaining stuff
http://www.bgsoflex.com/mjl/mjl_edis_summary.html
or this one...
http://www.dainst.com/info/edis/edis.html
Saves me explaining stuff
13-07-2005, 10:06 PM
#4
20K+ Super Poster.
Thread Starter
si, THANKS 
could you just answer the last Q for me tho... is it possible for a nonfaulty coilpack to just fire 4/6 cyls? saves me working it out for myself
could you just answer the last Q for me tho... is it possible for a nonfaulty coilpack to just fire 4/6 cyls? saves me working it out for myself
13-07-2005, 10:11 PM
#5
BANNED
BANNED
iTrader: (1)
Join Date: Jul 2003
Location: Wiltshire
Posts: 12,483
Likes: 0
Received 0 Likes
on
0 Posts
Could be leads, either of the paired plugs, a single coil within the pack, wiring, or edis.
Nothing else !!
UNLESS the crank sensor alignment or sensor itself is wrong !!
Sorry, impossible to say for sure I am affraid without being there
Nothing else !!
UNLESS the crank sensor alignment or sensor itself is wrong !!
Sorry, impossible to say for sure I am affraid without being there
13-07-2005, 10:14 PM
#6
20K+ Super Poster.
Thread Starter
so the coilpack itself doesnt have some sort of fault tolernce thing that means tll fire a coil even if its not told to?
Trending Topics
13-07-2005, 10:20 PM
#8
BANNED
BANNED
iTrader: (1)
Join Date: Jul 2003
Location: Wiltshire
Posts: 12,483
Likes: 0
Received 0 Likes
on
0 Posts
Jim, the coil pack is JUST 3 coils on your car nothing else.
I would swap leads and plugs around to see if the fault moves around.
Otherwise change the plugs and/or leads.
Without proper diagnostics, the only way is to change things till its fixed !
EDIS will always fire a coil irespective what the ecu is doing.
For example, If you disconnect the ecu and crank the engine, you will still get sparks !!
I would swap leads and plugs around to see if the fault moves around.
Otherwise change the plugs and/or leads.
Without proper diagnostics, the only way is to change things till its fixed !
EDIS will always fire a coil irespective what the ecu is doing.
For example, If you disconnect the ecu and crank the engine, you will still get sparks !!
13-07-2005, 10:25 PM
#9
20K+ Super Poster.
Thread Starter
si, the point i was getting at is will the coilpack do out withut the edis connection 
i now realise... of course it wont... lol
lennie check this
ie if the coil doesnt fire, the rev counter doesn get the pulse...
so if it shows <6250 rpm on the limiter (feel free to rev the tits off it ) then its not tryin to spark
i now realise... of course it wont... lollennie check this
]The IDM signal present on all EDIS modules is used as the factory tach output to the ECU. This signal is used to determine the welfare of the ignition system. If a coil primary opens or does not fire, the IDM signal is not emitted, and thus the coil is faulty. The IDM signal is triggered by the flyback voltage of the coil being fired. The EDIS module processes this into a 512us pulse on the IDM line during operation. When the engine is stopped, but the Key is turned on (KOEOff), the EDIS module emits a 64us pulse every 262.144ms to indicate proper operation. Because of this, any tachometer operation from this line must filter out the 64us pulses.
so if it shows <6250 rpm on the limiter (feel free to rev the tits off it
) then its not tryin to spark
Thread
Thread Starter
Forum
Replies
Last Post
mk3ste
Restorations, Rebuilds & Projects.
19
17-10-2021 10:09 AM
danielT28
Ford Escort RS Cosworth
5
22-03-2005 08:57 PM
Jim Galbally
General Car Related Discussion.
6
17-03-2005 03:47 PM
danielT28
Technical help Q & A
1
23-02-2005 12:49 AM
