coozer
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 posted on 22/12/08 at 11:45 PM |
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Coil Pack Testing?
Is there a way to test the zetec coil pack for output? Started me ST install for the first time tonight and number 4 cylinder just wont light up.
Before I start spending any more money is it possible to test the coil pack output on No. 4??
Cheers,
Steve
1972 V8 Jago
1980 Z750
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Chippy
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| posted on 22/12/08 at 11:47 PM |
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Just swap the plug leads over, (I forget which two fire at the same time), and that will show if its the coil. HTH Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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blakep82
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| posted on 22/12/08 at 11:47 PM |
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timing light hooked up to the 4th plug?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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blakep82
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| posted on 22/12/08 at 11:48 PM |
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quote:
Originally posted by Chippy
Just swap the plug leads over, (I forget which two fire at the same time), and that will show if its the coil. HTH Ray
1&4, 2&3 isn't it?
[Edited on 22/12/08 by blakep82]
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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coozer
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| posted on 23/12/08 at 12:00 AM |
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Does that mean they are individual or only two coils? 1&3 on the left, 2&4 on the right... so if the coil is buggered would there be two
cylinders dead?
1972 V8 Jago
1980 Z750
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dhutch
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| posted on 23/12/08 at 12:16 AM |
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Four coils, with a lost spark?
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stevebubs
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| posted on 23/12/08 at 02:31 AM |
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quote:
Originally posted by blakep82
quote:
Originally posted by Chippy
Just swap the plug leads over, (I forget which two fire at the same time), and that will show if its the coil. HTH Ray
1&4, 2&3 isn't it?
[Edited on 22/12/08 by blakep82]
Yup - wasted spark...
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britishtrident
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| posted on 23/12/08 at 07:35 AM |
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With coil packs the only real way to check is substitution of plug & coil pack --- if it has a lead the lead also.
If you can check the spark with an old plug with gap opened up to 3 to 4 mm clamp the plug body to a metal part of the engine so you don't get
a shock.
If you get a decent spark then check the injector signal with 12v LED (official name is a NOID light) .
If that is OK do a compression test or a cylinder leak down test.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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ss1turbo
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| posted on 25/12/08 at 11:38 PM |
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With a wasted spark setup (i.e. Zetec, Vauxhall), then loss of a coil (or its drivers) would result in 2 cylinders losing spark. Only 1 suggests
either plug or lead failure. Have you tried a resistance measurement? Should be in the 10's of kOhms, and will be pretty much proportional to
the length of the lead.
Long live RWD...
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