Omega Owners Forum
Omega Help Area => Omega Electrical and Audio Help => Topic started by: dan-eboy on 06 February 2012, 21:56:31
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Hi having a few issues with my ignition system, and might understand more if I knew exactly how it works.
For this example lets say it's a coil pack for a 6 cylinder engine and there are 4 wires plugged in. The coil pack works in groups on cylinders 1/4, 2/5, 3/6. I know 1 wire is a constant 12V feed but what are the other 3? Are they a pulse signal to tell each group when to spark (so like a switch which turns on the 12V feed to each group)? Or am i completely wrong? Thanks, Dan
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Hi having a few issues with my ignition system, and might understand more if I knew exactly how it works. .....
What 'issues'' are you having? Coil pack generally work or they don't, if you replace it, try to dig deep & buy OE because generic often fail. :y :y
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I already have replaced it, along with leads and plugs, I have a misfire still, just really wanna know how it works so i can work out what else it could possibly be?
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...... work out what else it could possibly be?
crank sensor? :-\
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It's possible i guess but theres no spark on 3 and 6 which leads me to think it might be ecu (as coil pack is new) or a wire (if it works in the way i think it does.
How easy is it to change the crank sensor?
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It's possible i guess but theres no spark on 3 and 6 which leads me to think it might be ecu (as coil pack is new) or a wire (if it works in the way i think it does.
How easy is it to change the crank sensor?
http://www.omegaowners.com/forum/index.php?topic=90573.0 This might help :y
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http://www.omegaowners.com/forum/index.php?topic=90573.0 This might help :y
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Nice one i know where it is now, But does it have a plug to disconnect, doesn't look like it from the picture?
Also i'm still curious as to how a dis pack works - 'I like to know how something works not just how to fix it'!
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But does it have a plug to disconnect, doesn't look like it from the picture?
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http://www.omegaowners.com/forum/index.php?topic=90552.0
it ain't hard wired to the loom ;) ;) :y
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Also i'm still curious as to how a dis pack works - 'I like to know how something works not just how to fix it'!
Mark DTM will probably give a detailed description of current in one coil being cut inducing current in another, but it's far too many moons since I've done any theory in electrickery ;) ;) ;) ;)
sometimes you need to just accept that some things work because they do ;D ;D ;D :y
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Quote from MDTM
The coil works by energising a primary winding, this in turn effectively 'stores' energy within the magnetic core of the transformer.
When the current to the primary is removed, this stored energy induces a voltage in the secondary which fires the high voltage through the plugs.
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Yeah i only learnt electric stuff as i go along but can understand most things after reading a couple of times! I really just want to know if it's like i think. The 1 live wire supplies the current which builds up in 'transformer type things' inside the coil pack, and the other 3 wires send a signal in sequence to 'let out' the current into the HT leads. Would make sense as there are 4 wires? But then again I might have it all wrong! ???
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Quote from MDTM
The coil works by energising a primary winding, this in turn effectively 'stores' energy within the magnetic core of the transformer.
When the current to the primary is removed, this stored energy induces a voltage in the secondary which fires the high voltage through the plugs.
I was nearly there then Rob ......... something must've stuck somewhere ;D ;D
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Nearly but not quite Andy. Should use a decent "search" facility ;)
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Quote from MDTM
The coil works by energising a primary winding, this in turn effectively 'stores' energy within the magnetic core of the transformer.
When the current to the primary is removed, this stored energy induces a voltage in the secondary which fires the high voltage through the plugs.
So am I right? Each one of the other 3 wires is a 'switch' (for lack of better word) to 'release' the current into each set of 2 leads? I guess this is a pulse as opposed to a constant current? so not really measurable with a multimeter.
Please excuse my lack of terminology my electronics is a bit rusty!
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Yeah i only learnt electric stuff as i go along but can understand most things after reading a couple of times! I really just want to know if it's like i think. The 1 live wire supplies the current which builds up in 'transformer type things' inside the coil pack, and the other 3 wires send a signal in sequence to 'let out' the current into the HT leads. Would make sense as there are 4 wires? But then again I might have it all wrong! ???
Compared to days of olde, when cars had a single dizzy there was only one LT circuit, as you say there are 3 coils within the coil pack with 3 LT circuits so it sounds reasonable that the 3 other wires are part of the 3 LT circuits with a single shared 12volt supply. :y :y :y
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Nearly but not quite Andy. Should use a decent "search" facility ;)
I used the old fashioned memory search .................. ::) ::) ::)
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Cool thanks for the help guys, and BTW andy you have way too much time on your hands - how many thousand posts! :y
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.........., and BTW andy you have way too much time on your hands - how many thousand posts! :y
:-[ :-[ :-[ :-[
In my defence there are those with even more time on their hands ......... ::) ::) ::) And I've been here for a looong time! ;)