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Author Topic: LPG and plug leads  (Read 829 times)

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megaomega123

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LPG and plug leads
« on: 25 August 2010, 10:48:54 »
I have a low down misfire, in the revs I mean. When I just touch the throttle it wants to die rather than accelerate. Feels similar to when I had a split lead. No problems at higher speeds.
Do I recall reading that LPG shortens the life of plugs and leads.
Can anyone confirm the misfire symptoms and the lpg fact?
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2woody

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Re: LPG and plug leads
« Reply #1 on: 25 August 2010, 11:52:21 »
LPG doesn't shorten plug or lead life per se, it's just that LPG mixture is harder to ignite under certain circumstances, so if either is not 100%, then a misfire will result.
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Lazydocker

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Re: LPG and plug leads
« Reply #2 on: 25 August 2010, 13:22:38 »
Run it on petrol and see if it's the same... If it's fine on petrol it is probably an HT issue ;)

But could equally be a supply issue ;)
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megaomega123

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Re: LPG and plug leads
« Reply #3 on: 25 August 2010, 15:03:38 »
Quote
Run it on petrol and see if it's the same... If it's fine on petrol it is probably an HT issue ;)

But could equally be a supply issue ;)
It is exactly the same on petrol, maybe just slightly worse on gas.
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Lazydocker

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Re: LPG and plug leads
« Reply #4 on: 25 August 2010, 16:12:01 »
Quote
Quote
Run it on petrol and see if it's the same... If it's fine on petrol it is probably an HT issue ;)

But could equally be a supply issue ;)
It is exactly the same on petrol, maybe just slightly worse on gas.

Hmm.... Have you read the fault codes? I suspect there may be a Crank Sensor code if anything.

If no codes it's likely to be HT related :y
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megaomega123

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Re: LPG and plug leads
« Reply #5 on: 25 August 2010, 20:25:06 »
Quote
Quote
Quote
Run it on petrol and see if it's the same... If it's fine on petrol it is probably an HT issue ;)

But could equally be a supply issue ;)
It is exactly the same on petrol, maybe just slightly worse on gas.

Hmm.... Have you read the fault codes? I suspect there may be a Crank Sensor code if anything.

If no codes it's likely to be HT related :y
No codes so am going down HT road. Sticking new leads in tomorrow so time will tell.  :y
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Lazydocker

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Re: LPG and plug leads
« Reply #6 on: 26 August 2010, 08:24:30 »
Quote
Quote
Quote
Quote
Run it on petrol and see if it's the same... If it's fine on petrol it is probably an HT issue ;)

But could equally be a supply issue ;)
It is exactly the same on petrol, maybe just slightly worse on gas.

Hmm.... Have you read the fault codes? I suspect there may be a Crank Sensor code if anything.

If no codes it's likely to be HT related :y
No codes so am going down HT road. Sticking new leads in tomorrow so time will tell.  :y

Stick a set of plugs in whilst you're there too :y :y
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