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C4 Fuel tank contents indication with LPG conversion |
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cance
 
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  Member No: #19160
Joined: Apr 06 2011Location: Turkey |
sijones wrote ... @cance, did you fit a valve saver kit? I've been told it's not necessary for the PSA group engines. No i haven't fitted it. They also said me its not necessary for my car. But i have fitted a lpg system with max regulator, super-max (yellow) injectors and the other system parts are compatible with them (thicker parts etc). Because without them there will be some performance problems, this system can cope with up to 40-45 kW per cylinder. |
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sijones
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 Member No: #23077
Joined: Nov 26 2011Location: Wirral |
cance wrote ... sijones wrote ... @cance, did you fit a valve saver kit? I've been told it's not necessary for the PSA group engines. No i haven't fitted it. They also said me its not necessary for my car. But i have fitted a lpg system with max regulator, super-max (yellow) injectors and the other system parts are compatible with them (thicker parts etc). Because without them there will be some performance problems, this system can cope with up to 40-45 kW per cylinder. I have the 2.0l engine in c4 picasso, thinking of either a Bigas or Stag Premium system at moment... |
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cance
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Member No: #19160
Joined: Apr 06 2011Location: Turkey |
sijones wrote ... cance wrote ... sijones wrote ... @cance, did you fit a valve saver kit? I've been told it's not necessary for the PSA group engines. No i haven't fitted it. They also said me its not necessary for my car. But i have fitted a lpg system with max regulator, super-max (yellow) injectors and the other system parts are compatible with them (thicker parts etc). Because without them there will be some performance problems, this system can cope with up to 40-45 kW per cylinder. I have the 2.0l engine in c4 picasso, thinking of either a Bigas or Stag Premium system at moment... Injectors are the big differences in lpg brands. Most of the cheap ones are using selonoid valve type ınjectors, they aren't suitable with some car brands who have smaller gasoline injection times (around 2-3 ms), citroen are also using this type of system on gasoline. So it is important the lpg system you will buy have injectors like keihn or brc injectors, If you but lpg system with selonoid valve type injector there can be some problems at AFR when idling or some performance problems at road. |
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Dave_Retired.
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   Member No: #1
Joined: Aug 07 2006Location: Northumberland |
This may be an answer to fuel gauge problems with an LPG conversion: - Click Here - | ||
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BigJohnD
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  Member No: #82
Joined: Jan 22 2007Location: Hoylake |
That looks cheap - I wonder how easy it is to retro-fit. | ||
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Dave_Retired.
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Member No: #1
Joined: Aug 07 2006Location: Northumberland |
I take it back as this was posted over at C6owners: rogerandoutman wrote ... Be very careful with an emulator, I fitted one to my Avantime with an lpg conversion. All they do is cut power to dashboard and fuel computer, so the fuel guage resets. Mine decided to cut in on the autoroute in France, I lost all dashboard functions, indicators, brake lights ect. Just managed to pull off safely. Had to remove the unit and resplice the loom. Later on just fitted an interrupter switch, which I just used to cut supply for 30secs, this allowed to fuel guage to reset to the actual petrol amount in the tank. When I contacted the Italian manufacturers, they just suggested to try a different model emulator, even though I had purchased their recommended part. However as outlined above, an 'interrupter switch' sounds like a simple plan. |
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Stankoman
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 Member No: #30553
Joined: May 04 2013Location: Slovenia |
Anyone still interested: After my LPG conversion: When my gasoline tank is in the last quarter or less the fuel indicator does no reset and I get the low fuel gasoline warning. When I refill the tank only for a couple of liters it resets. When I refilled the tank to 3/4 or more indicator the fuel level resets every time I turn the ignition on. So no need for special modules and whatnot. Just fill up the tank and the car will recheck the fuel level every time you restart the car. |
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sienaazis
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Member No: #33376
Joined: Dec 02 2013Location: Riga |
Hi! when the fuel tank is lower than 3/4, solution is to refill tank only with couple of litres (even 1 litre?) It seems like, fuel tank has to be more than 3/4 all the time, not to experience this problem anymore? Stankoman wrote ... Anyone still interested: After my LPG conversion: When my gasoline tank is in the last quarter or less the fuel indicator does no reset and I get the low fuel gasoline warning. When I refill the tank only for a couple of liters it resets. When I refilled the tank to 3/4 or more indicator the fuel level resets every time I turn the ignition on. So no need for special modules and whatnot. Just fill up the tank and the car will recheck the fuel level every time you restart the car. |
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shipp
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 Member No: #34913
Joined: Mar 30 2014Location: Germany |
C6 Dave wrote ... I take it back as this was posted over at C6owners: rogerandoutman wrote ... Be very careful with an emulator, I fitted one to my Avantime with an lpg conversion. All they do is cut power to dashboard and fuel computer, so the fuel guage resets. Mine decided to cut in on the autoroute in France, I lost all dashboard functions, indicators, brake lights ect. Just managed to pull off safely. Had to remove the unit and resplice the loom. Later on just fitted an interrupter switch, which I just used to cut supply for 30secs, this allowed to fuel guage to reset to the actual petrol amount in the tank. When I contacted the Italian manufacturers, they just suggested to try a different model emulator, even though I had purchased their recommended part. However as outlined above, an 'interrupter switch' sounds like a simple plan. Guys, what and where should get interrupted then? As having same "problem" I am seeking for cheap and save solution too. Thanks... rgds, Sascha |
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Dave_Retired.
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Member No: #1
Joined: Aug 07 2006Location: Northumberland |
Read Stankoman's post 2 above yours. | ||
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Nickbrown123
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Member No: #61140
Joined: Sep 03 2023Location: Zagreb, Croatia |
Wintermute wrote ... It could possibly check when the filler cap has been opened, all you'd need is a pressure switch or something similar to detect when the lid has been removed from the nozzle. Nakiri knives edit: what I mean to say is the engine management system could check the level when the filler cap has been opened, have you tried just opening it, closing it, then seeing if it reads right? music data analytics That's a clever suggestion! Using a pressure switch or a similar mechanism to detect when the filler cap has been opened could be an effective way for the engine management system to check the fluid level. |
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