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| TwistedEL |
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daggy082 wrote: This is gonna sound really dumb but how do u change ova the packs?
It's a real pain in the a** You need a small ratchet (a 1/4" would be handy, but I did it with a 3/4"), a very short extension bar, and a 7mm socket. |
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| daggy082 |
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do i have to take anything else off? And where are the nuts located... See my last car was a XF falcon so i know nothing (well even less then normally) about coil packs...
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| falconea |
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Do yourself a favour and get a workshop manual. They save you money just in saving you breaking things trying to remove them. $50 well spent and you can always sell it on Ebay if you sell the car
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| daggy082 |
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falconea wrote: Do yourself a favour and get a workshop manual. They save you money just in saving you breaking things trying to remove them. $50 well spent and you can always sell it on Ebay if you sell the car
Took ya advice and bought a manual... $32 and it tells u its easier to get it from the bottom so yeh ill give it a go that way. Tells me how to test it aswell so thats kewl. But i found out that its Cyl 1-6 2-5 3-4 that are coupled together so i doubt that 5&6 goin would be result of the coil... but then again i know bugger all 
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| xpression |
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the coils on these are a "wasted spark" type system, meaning thoeretically cyls 1 and 6, 2 and 5, and 3 and 4 fire at the same time as each other, so if you are only getting no spark on 5 or 6 it basically has to be a coil pack/plug lead issue.
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| falconea |
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I was lead to believe that the system only caused a spark in the cylinder under compression and no spark in the other. Same as the old VN Commodore system. See if you can get the coil pack tested or get a loan of another pack to try.
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| xpression |
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as far as im aware thats incorrect, i'll look into it though
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| xpression |
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taken from AUII workshop manual however EF EDIS is very similar/the same
Quote: DESCRIPTION AND OPERATION
All engines use an Electronic Distributorless Ignition System (EDIS). EDIS consists of the following parts: 1. Crankshaft Position Sensor (CKP sensor) and timing wheel: the sensor is a single pole inductive pickup; the toothed wheel has 35 teeth at 10° intervals, with the 36th tooth missing. The CKP sensor reads both the crankshaft speed and the crankshaft position. 2. Coil pack: the coil pack contains 3 or 4 separate coils with a common B + terminal. The other end of each coil is connected to the EEC module. Inside the EEC module, each coil is connected in series to a 100 mW resistor (for current sensing) and a transistor that connects the coil to ground. Each ignition coil fires two spark plugs simultaneously: • One spark plug on the compression stroke. This spark plug uses the majority of the ignition coil energy. • One spark plug on the exhaust stroke. This spark plug uses very little of the ignition coil stored energy. Since these two spark plugs are connected in series: • The firing voltage of one spark plug will be negative with respect to ground. • The voltage of the other will be positive with respect to ground. 3. EDIS CPU (built into the EEC module). The EDIS CPU processes the signals from the CKP sensor, and sends a synthesised PIP signal to the EEC CPU. It receives timing information from the EEC CPU and controls both the spark timing and the coil dwell. |
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| daggy082 |
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Cheers Xpression
.. i got the coil out today just waiting for a volt meter to check the resistance on it... thanks 4 the advice
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| daggy082 |
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Update... Just checked the resistance on the coil pack and it seems to be ok... The primary resistance was supposed to be 0.6 ohm and its reading 0.8 to 0.7 and the secondary resistance it was supposed to be 9.2 k-ohms. It was ranging around 8.9 - 9.0 k-ohms. Seems to be in resonably close but does it have to be exact or is there room for error. Any idea's?
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| falconea |
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Thats close enough, but coil testing by meter is only so good there can be problems that will only show up under load. If you can loan a pack from a mates car and test would be good or I suggest auto electrician. I f you have a mate thats willing to swap ECU for a test that would be good but you may have to pay an autoelectrician. Check if there are any codes being given by the ECU
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| daggy082 |
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falconea wrote: Thats close enough, but coil testing by meter is only so good there can be problems that will only show up under load. If you can loan a pack from a mates car and test would be good or I suggest auto electrician. I f you have a mate thats willing to swap ECU for a test that would be good but you may have to pay an autoelectrician. Check if there are any codes being given by the ECU
Codes was my next step morro. Starting to get p****d off :@
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| falconea |
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Know the feeling Good luck
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| daggy082 |
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Wat is the worst case scenario with my prob? Could it be more then electical? Valve or something like that?? Still no spark from 5&6..
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| falconea |
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Is it possible for you to do a compression check on 5 & 6.
I was just thinking if there was a head gasket broken between cylinders 5 & 6 there would be no compression and hence no spark, as it requires compression to make the coil spark. Just a thought. Unlikely a valve problem on 2 cylinders.
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