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spark lead arching out? 

 

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 Post subject: spark lead arching out?
Posted: Mon Jun 13, 2011 11:33 pm 
Getting Side Ways
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hey there got an EF with an AU motor on duel fuel ,

the symptoms i am having with the particular vehicle i have a constant mis fire as if its dropped a cylinder or 2 , and at night time i can see ALL 6 leads arching out e. g sparking all over the engine bay

car had its transplant about 5 months ago and have only racked up 7K km , brand new leads and plugs where put in (bosch)

on petrol it is noticeably better but idles like crap

im wondering whats the chance it could be a coil , motor came out of a vehicle with 170k and was running LPG
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 6:15 pm 
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Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

Gapped all your plugs?

Do they look alright?

On EF coil pack models having good condition leads is essential... As soon as your leads start to go high resistance they need to be changed otherwise you burn out the coil pack...

If the leads are tracking I'd replace them straight up... The long you leave this, the more likely to do the coil pack you are... Sounds like the leads were a dodgy set if they aren't all that old...

Check the plugs to start with though...

Cheers,
Tim

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 8:01 pm 
Getting Side Ways
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ok , have changed the leads made a bit of a difference , tomorrow plugs hopefully

running a S2/3 coil pack

would it hurt changing the coilpack just cause ?
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 8:33 pm 
Technical Contributor
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Age: 28

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Gallery: 20 images

Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

usually the leads kill the coil pack...

So changing it just in case wont harm anything...

Just may be an expense you're not due for yet... If you have a spare plug it in and see how you go...

Now it is dark have your arcs under the bonnet stopped?

Cheers,
Tim

 

_________________

93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 9:23 pm 
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NSW, Australia

EF_wanabe wrote:
ok , have changed the leads made a bit of a difference , tomorrow plugs hopefully

running a S2/3 coil pack

would it hurt changing the coilpack just cause ?


Are you sure that it is a S2/3 coil pack, they have a different plug to the EF / AU1 and if I remember rightly EF/AU1 and AU2/3 coil packs are wired differently, could be wrong?
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 9:33 pm 
Getting Side Ways
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Age: 27

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Joined: 18th Oct 2006

Location: Adelaide
SA, Australia

no you are correct, did a conversion also on the coilpack

just came back took it to a dark spot and they where still glowing but not as bad but still where in the actual leads
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 9:36 pm 
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NSW, Australia

What leads are you using?
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 9:38 pm 
Getting Side Ways
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Age: 27

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Location: Adelaide
SA, Australia

bosh sports blue ones

there pretty "thick" but not the best but still are a step above cheap eagles
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 9:46 pm 
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Ride: EF Fairmont

Location: Campbelltown
NSW, Australia

Do you have another coil? If so try that.
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 9:48 pm 
Getting Side Ways
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Location: Adelaide
SA, Australia

nah i dont :(

could it be the cam angle sensor ?
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 Post subject: Re: spark lead arching out?
Posted: Tue Jun 14, 2011 11:01 pm 
Technical Contributor
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Age: 28

Posts: 3705

Joined: 27th Sep 2006

Gallery: 20 images

Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

doubt it... Would think if it played up it'd stop altogether... They are unadjustable unlike all other e series where you can adjust the timing... :? But this is a random guess too...

Cheers...

 

_________________

93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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