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Old 18-08-2010   #16
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Re: Ht leads and coil pack

ok , thanks, now the garage told me number 3 not working, looking at the car from left to right 1,2,3,4 ? yes or right or left ?


I work in Chorley btw
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Old 18-08-2010   #17
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Re: Ht leads and coil pack

Oh and how do I test if they are working or not? not following the instructions lol

Heres a pic of my engine where the swines are kept...


[IMG][/IMG]
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Old 18-08-2010   #18
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Re: Ht leads and coil pack

one tip is to check the engine bay at night..........you can see things 'shorting' etc in the dark where you wouldn't notice them in daylight
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Old 18-08-2010   #19
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Re: Ht leads and coil pack

Quote Originally Posted by reddy4bed View Post
Cant be the coil pack if just 1 cylinder is misfiring, because both plugs and leads are required for the firing circuit. Only real possibility is a duff plug.
Tony.

The garage told me that my number 3 coil was not working, so I got a new one... But Im not sure which is the number 3 one... But now im unsure not you say they go in pairs....
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Old 27-01-2011   #20
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Re: Ht leads and coil pack

Quote Originally Posted by reddy4bed View Post
Cant be the coil pack if just 1 cylinder is misfiring, because both plugs and leads are required for the firing circuit. Only real possibility is a duff plug.
Tony.
Mine is firing on 3. Doesn't seem 2 b a spark on no. 3 cylinder. I've replaced spark plugs and switched them between cylinders, but it's still not firing on same one. I replaced the HT leads yesterday and no difference. Mine is a 1.4 bravo (yes I know) and so has 1 injector for all four pots so I kinda think that eliminates the possibility of a faulty injector? Is the coil the only option before an ECU? I ask simply because of the earlier post (quoted above).
Please help!!! (The fella I car share with for work is gettin a pissed with having to drive every shift!)
Thanks in advance, John
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Old 27-01-2011   #21
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Re: Ht leads and coil pack

A simple test with the multimeter will give you the answer
See;

Quote Originally Posted by slimfastjohn View Post
Mine is firing on 3. Doesn't seem 2 b a spark on no. 3 cylinder. I've replaced spark plugs and switched them between cylinders, but it's still not firing on same one. I replaced the HT leads yesterday and no difference. Mine is a 1.4 bravo (yes I know) and so has 1 injector for all four pots so I kinda think that eliminates the possibility of a faulty injector? Is the coil the only option before an ECU? I ask simply because of the earlier post (quoted above).
Please help!!! (The fella I car share with for work is gettin a pissed with having to drive every shift!)
Thanks in advance, John
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Old 27-01-2011   #22
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Re: Ht leads and coil pack

Thanks Adrian will try when it's light. lol. Let u know how I get on!
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Old 28-01-2011   #23
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Re: Ht leads and coil pack

Tested the Coils as above. all seems to be ok. What's next? ECU? Is there a test I can do on this before messing with it? Also, if I need to replace the ECU, is the fact I only have a blue key a problem??? =[
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Old 28-01-2011   #24
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Re: Ht leads and coil pack

The ECUs are very reliable if the engine management light is not on it is probably not broken. The ecu sends two ouputs to the coil, one for the spark on cylinder 1+4 and one for the spark on 2+3, if your engine is constitantly running on 3 cylinders the two ECU signals must be reaching the coil pack. Maybe your getting a wasted spark because of one duff sparkplug on that shared coil winding.

You definatly have fuel.
From a spark point of view the coilpack tested ok, new leads, just spark plugs left to try.
Compression is an unknown at the moment.

I think new spark plugs then a compression test. NGK BKR6EKC are one correct spark plugs for the 1.4
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Old 28-01-2011   #25
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Re: Ht leads and coil pack

I switched plugs to test em, before doin HT leads. Same cylinder not firing. There is no spark at the end of the HT lead- with the caps removed (one at a time obviously) each one will spark to the engine except the one that's not firing. yes there's fuel getting through - plug is wet if I check it just after running the engine. Probably worth mentioning the engine management light has come on a few times whilst driving. Not every journey and not consistent to long or short journeys etc. Just comes on for 10 - 15 min now and then! (sorry for not mentioning that one b4!)
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Last edited by slimfastjohn; 28-01-2011 at 17:57.
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Old 30-01-2011   #26
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Re: Ht leads and coil pack

Another thing, I've read on the net about resetting the ECU by disconnecting the battery for a min of 45 minutes then leaving the engine to tick over for 5. thinking about it, the problems I had with it running were after the missus left the stereo on overnight and totally drained the battery. Dunno if this could've triggered something or it's just coincidence???
(I'm gonna try the reset when I'm off work 2moro morning- I'll let u know if any change). =]
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Old 31-01-2011   #27
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Re: Ht leads and coil pack

Tried. tested. FAIL. =[ Any ideas?
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Old 03-02-2011   #28
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Re: Ht leads and coil pack

ok, so I got a coil pack off a scrapper this morning. 12 (should've been 20 but told him only had 12 lol). Put on, but made no difference to the tick over revving a little then almost dying over and over. It ran fine and seemed to be back to full power whilst accelerating, and didn't cut out when slowing down. Tried again a bit later and its back as it was before changing the coils. Could the ECU be to blame? Is it knackering the coils? Also, (just to check) I switched all the HT leads around ie 1-4 2-3 3-2 & 4-1. so all are on different plugs, and it made no difference! not even a little worse! AAARRRGGGHHH!!!!! HELP! PLEASE! Scrapper wants 60 for an ECU (inc. 2 blue keys) but is it just money for old rope if I can't be sure that it'll work? The car was only 400 in the first place a few months ago, should I just buy something else?
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Old 03-02-2012   #29
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Re: Ht leads and coil pack

hi mate seems like your having the same problem as me its doing my head in now
ive changed plugs and leads and am buying a new coil pack tomorrow for 26 see if that helps me.
one thing that might apply to you also is someones told me my problem could also be the "crankshaft sensor" as a faulty one may give similar results but apparently if it was that the car would run alot better at certain revs in each gear.
ive read yr other posts about testing the coil pack im a bit puzzled on how you did it .

did you just put the tester into the coil pack pins 1&4 and then again in pins 3&2
if you do leave the battery off to try and reset the ECU from what i remember its important that when you first restart the car after reconnecting not to rev the engine for about 5 mins as it needs to register something on the ECU ,thats from what i remember i may be wrong lol
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Old 03-02-2012   #30
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Re: Ht leads and coil pack

hi sorry to ask you things in yr post
but ive figured out how you checked the resistance but did u do it when the engine was running or turned off?
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Last edited by steve_uk; 03-02-2012 at 22:35.
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