Tuning with aftermarket LPG

pacman67 · Jun 29th, 2014, 09:05

I had an offer on chipping my 02 petrol xc70 with a plug in box, however i wondered how this would work with the lpg system. Would the tuning only work when on petrol, or does the lpg ecu see all and would then work in conjunction ?
Your thoughts please.

RollingThunder · Jun 29th, 2014, 09:40

You'll need to get the LPG remapped as well - the remap will only affect the petrol side of the fuel system.

What they do is use a laptop to look at the figures produced by the petrol fuel map and match them in the LPG map, its usually done while you're driving along, switching between the fuels. The 'interesting' bit is when you have to hold WOT to fine tune it on LPG - you need a long empty road

Well worth doing though - my V70R seems to run better on LPG.

BTW I'd be wary of plug in boxes - they tend to work by fooling the ECU and aren't a good idea. Have a word with HLM - he can do an exchange ECU for £150 ish which has a good map.

pacman67 · Jun 29th, 2014, 12:00

So, could it be tuned on just lpg then ?

classicswede · Jun 29th, 2014, 21:38

Re mapping and LPG will work fine. The LPG might need a little tweak and increase in flow depending how much extra power and how it is being made. Results with plug in boxes are a little hit and miss

Jun 29th, 2014, 09:05	#1
pacman67 VOC Member Last Online: Dec 6th, 2023 14:09 Join Date: Feb 2009 Location: Richmond N Yorks	Tuning with aftermarket LPG I had an offer on chipping my 02 petrol xc70 with a plug in box, however i wondered how this would work with the lpg system. Would the tuning only work when on petrol, or does the lpg ecu see all and would then work in conjunction ? Your thoughts please. __________________ Regards, pacman67 previously held: V40 TD & S40 2ltr P1,V40 P2 sport lux, V70 XC P1, XC70 P2, V70 D5 P2 and P3, V40 T4,V70R, C30 R Design. currently held: V70 P3 D5 SE LUX, XC90 MK2 Inscription Pro.

Jun 29th, 2014, 09:40	#2
RollingThunder Grumpy Old Git Last Online: Today 09:16 Join Date: Dec 2004 Location: South Yorkshire View Photos By: RollingThunder	You'll need to get the LPG remapped as well - the remap will only affect the petrol side of the fuel system. What they do is use a laptop to look at the figures produced by the petrol fuel map and match them in the LPG map, its usually done while you're driving along, switching between the fuels. The 'interesting' bit is when you have to hold WOT to fine tune it on LPG - you need a long empty road Well worth doing though - my V70R seems to run better on LPG. BTW I'd be wary of plug in boxes - they tend to work by fooling the ECU and aren't a good idea. Have a word with HLM - he can do an exchange ECU for £150 ish which has a good map. __________________ S40 2.4i '07 Japanese import '96 850R - https://www.volvoforums.org.uk/showthread.php?t=312484 Ex Danish Embassy '96 940 GLE LPT - https://www.volvoforums.org.uk/showthread.php?t=326071

Jun 29th, 2014, 12:00	#3
pacman67 VOC Member Last Online: Dec 6th, 2023 14:09 Join Date: Feb 2009 Location: Richmond N Yorks	So, could it be tuned on just lpg then ? __________________ Regards, pacman67 previously held: V40 TD & S40 2ltr P1,V40 P2 sport lux, V70 XC P1, XC70 P2, V70 D5 P2 and P3, V40 T4,V70R, C30 R Design. currently held: V70 P3 D5 SE LUX, XC90 MK2 Inscription Pro.

Jun 29th, 2014, 21:38	#4
classicswede Trader Volvo in my veins Last Online: Today 09:29 Join Date: Dec 2004 Location: Anglesey	Re mapping and LPG will work fine. The LPG might need a little tweak and increase in flow depending how much extra power and how it is being made. Results with plug in boxes are a little hit and miss __________________ http://www.classicswede.org www.classicswede.co.uk

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