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Author Topic: Cough Cough !  (Read 10888 times)

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markey mark

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Re: Cough Cough !
« Reply #30 on: 19 July 2006, 17:00:58 »
always best to do it yourself then you know its done right  ;)
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Martin_1962

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Re: Cough Cough !
« Reply #31 on: 20 July 2006, 23:34:01 »
Come on Dave - time for an update!
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Taxi_Driver

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Re: Cough Cough !
« Reply #32 on: 21 July 2006, 07:45:16 »
Quote
Come on Dave - time for an update!

Well....i havent anything new to report really...except mpg is up it seems by about 3 mpg running about town :) its now doing approx 15mpg on lpg about town with aircon on....havent been on a run yet...tomorrow im off to Ipswich...so will be able to report what its doing on a run then.

It was certainly nippier when i changed the air filter.....doesnt quite seem as much now....but maybe im getting use to the extra power.....so taking it for granted now

The fast idle when starting has stopped.....so i guess thats settled down.

Did wonder if it was worth taking it back to lpg installer for readjustment...but dunno if clean air filter would make any difference to the settings they adjust.
Bearing in mind they reckoned nothing was wrong on the occasions i did take it back to them.

EML did come on yesterday but cleared after a restart.....havent checked the code yet....but not surprised....as vx dealers 'fix' last time for EML was on, was just reset it.


Cheers

Dave
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Martin_1962

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Re: Cough Cough !
« Reply #33 on: 21 July 2006, 14:40:47 »
Well mine is running too lean so I am booking an hour or so with a local installer with a ODBC compliant reader to watch my lamda probe - he reckons 1/4 hour to get trims correct
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Taxi_Driver

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Re: Cough Cough !
« Reply #34 on: 21 July 2006, 17:56:59 »
Quote
Well mine is running too lean so I am booking an hour or so with a local installer with a ODBC compliant reader to watch my lamda probe - he reckons 1/4 hour to get trims correct

The installer i go to, just sticks a probe up the exhaust (like in MOT stations) and goes by that
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Martin_1962

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Re: Cough Cough !
« Reply #35 on: 21 July 2006, 19:05:19 »
This chap will use a ODBC thing or will intercept the Lamda
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TheBoy

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Re: Cough Cough !
« Reply #36 on: 21 July 2006, 20:16:34 »
You mean OBD - ODBC is a computing term... ;)
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Martin_1962

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Re: Cough Cough !
« Reply #37 on: 21 July 2006, 20:22:49 »
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You mean OBD - ODBC is a computing term... ;)


aghhhhhhhhhhhhhhhhhhh
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Taxi_Driver

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Re: Cough Cough !
« Reply #38 on: 22 July 2006, 17:35:14 »
After my run to Ipswich today, 360 miles round trip.
Steady 80mph where motorways allowed.
I can report my meega averaged 25mpg with the air con on.
Seeing it only did 24mpg before (on same run) without the air con on, i think this is vast improvement  :)
SO if you add say 4mpg to the new average to account for aircon being on....more like 29mpg....an improvement thereabouts of 5mpg.  [smiley=thumbsup.gif]

For you petrolheads this is prolly about 34/35mpg in petrol terms.

Also tested the cruise on the way back on the m4......it cruised up all the hills without changing into 3rd at all  [smiley=thumbsup.gif] (not like before, it used to change into 3rd on most of the hills) so definately power up as well!!

Think I'll be changing the air filter a bit sooner than 65k miles next time  ;D

Cheers

Dave

PS Doing the plugs in the morning......this might even improve it a bit more!
« Last Edit: 22 July 2006, 17:37:22 by Taxi_Driver »
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TheBoy

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Re: Cough Cough !
« Reply #39 on: 22 July 2006, 17:51:15 »
Sounds like a decent improvement, and certainly sounds like the drivability has improved :D
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Martin_1962

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Re: Cough Cough !
« Reply #40 on: 22 July 2006, 18:27:46 »
Looks like a worthwhile job them - better drivability and economy
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MartinP

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Re: Cough Cough !
« Reply #41 on: 22 July 2006, 21:14:14 »
Only just read this thread  ::)

From what I understand airflow is more critical to LPG setup, the installer of my single point conversion took the standard airbox off and fitted a J&R cone.

Presumably he wanted to ensure adequate airflow. The car was bought after the conversion so this is second hand info.
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Taxi_Driver

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Re: Cough Cough !
« Reply #42 on: 23 July 2006, 08:04:17 »
Quote
Only just read this thread  ::)

From what I understand airflow is more critical to LPG setup, the installer of my single point conversion took the standard airbox off and fitted a J&R cone.

Presumably he wanted to ensure adequate airflow. The car was bought after the conversion so this is second hand info.

Dunno about J&R cone  :-/
Condition of air filter is important to all engines, lpg, petrol, diesel.
This thread shows what happens if vx dealers or yourself dont change the air filter.
My meega had done 65k miles on what i believe was the original air filter....it was black/dirty....now a nice clean one  :)
MPG is up, power is up.....so good result.
Mines got the original airbox on it....no mods there.
Does a J&R cone make it 'growl' a bit?......Maybe the previous owner wanted a bit of extra noise??

BTW Plugs are important to change with LPG......doing mine this morning.....they have done 13k now.....Best to do every 10-12k miles

Cheers
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The Cambelt Kid

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Re: Cough Cough !
« Reply #43 on: 23 July 2006, 22:27:55 »
Taxi Man,

I have the same problems with my LPG install (although i can't take it back to the garage as i fitted it myself)  It feels a little lumpy when pulling off hard but if i were to pull away slowly it runs just fine.  I also found that the problem occurs more so after a long run and the engine is upto temp.  As soon as i'm past the 2.5k rpm mark it tends to clear up.

I will try a new filter this weekend and see how that improves it.  Maybe i'll try removing the filter first  as a very quick test!
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[size=18]Project LP6 has landed![/size]
[size=12]DIY LPG now finally complete!! Whoo hoo.[/size]

The Cambelt Kid

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Re: Cough Cough !
« Reply #44 on: 23 July 2006, 22:29:48 »
Taxi Man,

I have the same problems with my LPG install (although i can't take it back to the garage as i fitted it myself)  It feels a little lumpy when pulling off hard but if i were to pull away slowly it runs just fine.  I also found that the problem occurs more so after a long run and the engine is upto temp.  As soon as i'm past the 2.5k rpm mark it tends to clear up.

I will try a new filter this weekend and see how that improves it.  Maybe i'll try removing the filter first  as a very quick test!
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[size=18]Project LP6 has landed![/size]
[size=12]DIY LPG now finally complete!! Whoo hoo.[/size]
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