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Author Topic: 3.0 v6 ( lpg) misfire/lumpy tickover  (Read 1245 times)

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idwal

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3.0 v6 ( lpg) misfire/lumpy tickover
« on: 30 December 2012, 16:39:15 »

Hi - my 3.0 v6 with lpg (2000) has started to misfire.
it has a slightly lumpy idle and can be heard misfiring on tickover.
2 days ago it started to develop a stutter when driving - which would
cure itself after a few seconds,   sometimes it revs normally other times
stutters and then goes. (this is on both petrol and lpg).

I have done a paper clip test and,  with engine off is showing code 3-1
it goes through the 1-2 start up   then gives 3-1  and then  end 1-2?
31   No Engine RPM Signal - is this correct?

only other thing that has been done to car recently is I had a cat back stainless system
fitted which was bought off another OOF member  (sounds great)

can anyone suggest anything?

thanks
ken
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tunnie

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Re: 3.0 v6 ( lpg) misfire/lumpy tickover
« Reply #1 on: 30 December 2012, 16:40:56 »

31 is normal without engine running, start with basics. Check plug wells for oil/water, when was the last time the plugs were changed?
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idwal

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Re: 3.0 v6 ( lpg) misfire/lumpy tickover
« Reply #2 on: 30 December 2012, 16:50:53 »

I had rocker covers done earlier this year and think they were done then!

Will get plugs ect checked tomorrow

Thanks
Ken
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idwal

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Re: 3.0 v6 ( lpg) misfire/lumpy tickover
« Reply #3 on: 31 December 2012, 15:25:12 »

 coil pack Changed - sign of water egress/damage

No more misfire :y

Ken
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zirk

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Re: 3.0 v6 ( lpg) misfire/lumpy tickover
« Reply #4 on: 31 December 2012, 17:48:50 »

Glad to hear its sorted Ken, hows the Exhaust system?

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idwal

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Re: 3.0 v6 ( lpg) misfire/lumpy tickover
« Reply #5 on: 01 January 2013, 16:58:43 »

Exhaust sounds great ;D well worth the trip and great to put a face to name on forum.
will have too sort out a chipped ecu soon :y

Ken
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zirk

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Re: 3.0 v6 ( lpg) misfire/lumpy tickover
« Reply #6 on: 01 January 2013, 18:45:07 »

Exhaust sounds great ;D well worth the trip and great to put a face to name on forum.
will have too sort out a chipped ecu soon :y

Ken

Good news Ken, try the Chip you already have, just needs a spare leg soldering to it from memory.
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