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Tallsaj



Member Since: 23 Aug 2013
Location: Birmingham
Posts: 75

United Kingdom 2005 Range Rover Supercharged 4.2 SC V8 Zambezi Silver
Misfire on a on my SC

Got bit of a strange problem if anyone can shed some light for me. I have a sc and been convrtrd to LPG and when flooring it when it gets to 3500/4000revz it splutters also like a misfire sound and won't go any further. Strange thing is it does it on petrol as well as LPG, on petrol it goes into safety model and shows up map sensor fault but not on the lpg on the reader. Has any 1 had. Similar problems or can any one help I am pulling my hair out. Jonno has been helping me out top man but still no luck Big Cry [/s]

Post #206630 29th Aug 2013 10:44pm
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ebajema



Member Since: 24 Mar 2011
Location: New Plymouth
Posts: 4782

New Zealand 2010 Range Rover Autobiography 5.0 SC V8 Galway Green

Have you tested the MAP sensor or replaced it? It could be failing slowly for example. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Post #206632 29th Aug 2013 10:48pm
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Tallsaj



Member Since: 23 Aug 2013
Location: Birmingham
Posts: 75

United Kingdom 2005 Range Rover Supercharged 4.2 SC V8 Zambezi Silver

Hw do I test the map sensor. Will this cause the problem u think?

Post #206641 29th Aug 2013 11:08pm
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ebajema



Member Since: 24 Mar 2011
Location: New Plymouth
Posts: 4782

New Zealand 2010 Range Rover Autobiography 5.0 SC V8 Galway Green

If you go to the below link you will find the workshop manual that covers the "early" SC models. You will find a lot of details on the MAP sensor (since that is the fault coming up) and how to test it.

If the MAP sensor is on its way out, it will give the ECU incorrect values that might lead to too much or too little fuel being injected or incorrect settings of ignition timing etc.


http://www.fullfatrr.com/forum/topic17623.html MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Post #206692 30th Aug 2013 8:45am
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Tallsaj



Member Since: 23 Aug 2013
Location: Birmingham
Posts: 75

United Kingdom 2005 Range Rover Supercharged 4.2 SC V8 Zambezi Silver

Thanks Mate that's why it's probably using more fuel also. I can't see the link for the Download?

Post #206736 30th Aug 2013 10:17am
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ebajema



Member Since: 24 Mar 2011
Location: New Plymouth
Posts: 4782

New Zealand 2010 Range Rover Autobiography 5.0 SC V8 Galway Green

If you go to the original post from Joe (the first), copy the http........ and drop it in your browser, that is the download location. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Post #206743 30th Aug 2013 10:37am
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Tallsaj



Member Since: 23 Aug 2013
Location: Birmingham
Posts: 75

United Kingdom 2005 Range Rover Supercharged 4.2 SC V8 Zambezi Silver

K I have downloaded the manual I can't seem to find the search button can u help on this?

Post #206850 30th Aug 2013 5:42pm
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ebajema



Member Since: 24 Mar 2011
Location: New Plymouth
Posts: 4782

New Zealand 2010 Range Rover Autobiography 5.0 SC V8 Galway Green

It's a normal PDF document (at least my version) so you have to go through it manually apart from the hyperlinked chapters. The MAP is somewhere in the engine management section. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Post #206853 30th Aug 2013 5:45pm
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ebajema



Member Since: 24 Mar 2011
Location: New Plymouth
Posts: 4782

New Zealand 2010 Range Rover Autobiography 5.0 SC V8 Galway Green

chapter 303-14a is the one I think. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Post #206859 30th Aug 2013 5:51pm
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