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Author Topic: Bloody EML..  (Read 3284 times)

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05omegav6

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Re: Bloody EML..
« Reply #15 on: 21 November 2013, 16:12:14 »
Are the codes the same :-\
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Re: Bloody EML..
« Reply #16 on: 21 November 2013, 16:25:57 »
Yes. 0300 , 0304. Must be the coil pack. Although last time around (18 months ago) it was 0306 as the no 6 cylinder was most susceptible to the scuttle leak. Could you put the pics you took up on here if you still have them please? Cannot remember how they looked.
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05omegav6

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Re: Bloody EML..
« Reply #17 on: 21 November 2013, 16:42:48 »
Will do when I get home :y phone and photobucket aren't a good combination ::)
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05omegav6

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Re: Bloody EML..
« Reply #18 on: 21 November 2013, 19:02:37 »
Pics as promised...

Plug wells... 4 and 6 were damp, but not swimming. Dried before refitting.


246 Coil pack... corroded but seen worse.




Old plugs... 135 were fine, nice pale brown with just a hint of soot in one quadrant, but 246 were much sootier, although all three were the same, number 4 looking no different to 2 or 6 :-\

Should add, the 246 plugs were showing water stains on the exposed metal areas, 135 were not...

If it is only misfiring on gas, might that be temperature related :-\

Whilst the plug end of the coil packs are in the firing line for scuttle leaks, where exactly the water gets into the plugwells is a bit of a lottery... in this case the plug well for 2 was bone dry, yet that coil is the most rusty :-\
« Last Edit: 21 November 2013, 19:04:25 by ex taxi al »
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Re: Bloody EML..
« Reply #19 on: 21 November 2013, 19:24:27 »
I wonder what I should do now? Change the coil pack on a whim or has anyone else got any suggestions?

Which reminds me that I should be changing my LPG filters soon, but surely that shouldn't cause a unilateral misfire should it?
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05omegav6

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Re: Bloody EML..
« Reply #20 on: 21 November 2013, 19:35:19 »
The lpg filter might cause the 0300 if the fuelling is out as a result of a clogged filter, but the 0304 being more specific does point to the coil pack :-\

 It's a pity that the codes don't tell which fuel the engine was using at the time :-\ only real way to tell would be to watch the live data whilst running on each fuel...

Might be work giving MarkDTM (Fuse 18) a shout, he has a Tech 2 and lives in Nottingham, which last time I looked is pretty much on the way to Leeds...
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Re: Bloody EML..
« Reply #21 on: 21 November 2013, 20:09:38 »
For what a coil pack costs, I am considering changing it anyway.
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05omegav6

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Re: Bloody EML..
« Reply #22 on: 21 November 2013, 21:28:10 »
If it is missing on petrol then coil pack is looking likely, but if it is only missing on LPG, then that would need looking at :-\

If missing on both, then new coilpack and seal the scuttle up :y
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chrisgixer

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Re: Bloody EML..
« Reply #23 on: 21 November 2013, 22:31:36 »
Seen worse re coil pacs.

What are the fuel trims doing?

Its worth running it on petrol for a good few miles to get any fuel trim error back to zero, assuming the petrol side of things is in order.
Then turn the gas on and see what happens. If it misses immediately then I'd say the cp would be worth changing. But if it takes a while for the missfire to chime back in then I think your looking at an lpg set up issue. Could be that the miss caused the lpg to run rich if it has adaptions turned on. In which case the lpg needs remapping/setting up again.

Do you have access to the lpg software?
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chrisgixer

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Re: Bloody EML..
« Reply #24 on: 21 November 2013, 22:32:48 »
Also check the lambda activity on that bank 246
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05omegav6

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Re: Bloody EML..
« Reply #25 on: 21 November 2013, 22:51:15 »
Likewise regarding the coil packs...

Lpg is an Emer kit :y

Guessing the lpg ecu lives under the scuttle, as scuttle shelf cut where it curves from the abs unit to the bulkhead, just about where the aircon pipe connector is. A plate has been fabricated to drain the water away from the 246 coilpack plug, but there was evidence of water in the lpg loom ducting from the scuttle across the back of the engine.

Presumably an iffy lpg injector would register as a misfire because the engine ecu knows no different :-\
« Last Edit: 21 November 2013, 23:00:54 by ex taxi al »
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chrisgixer

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Re: Bloody EML..
« Reply #26 on: 21 November 2013, 23:00:05 »
Quote from: ex taxi al on 21 November 2013, 22:51:15
Likewise regarding the coil packs...

Lpg is an Emer kit :y

I've also seen better that wouldn't play ball. Tbh. :(

But I'd be looking for a more conclusive diag before replacing.


...obviously steer clear of used ones.
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Re: Bloody EML..
« Reply #27 on: 22 November 2013, 23:36:06 »
Good advice. I will try that. I had to run 250 miles on petrol today. It was an alien sensation running on petrol. No misfires on petrol at all. Will try lpg in the morning.

I suppose the lpg settings could have drifted. Perhaps that's why the plugs were particularly sooty on the 246 bank? I will get the lpg looked at as well.
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JamesV6CDX

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Re: Bloody EML..
« Reply #28 on: 22 November 2013, 23:37:08 »
I have disg kit incl live data capability , happy to look it over :y
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05omegav6

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Re: Bloody EML..
« Reply #29 on: 22 November 2013, 23:42:22 »
No misfires on petrol does point to an lpg issue rather than a coilpack one... Certainly gives an area to be looking in :y
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