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Trip Computer & LPG 

 

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 Post subject: Trip Computer & LPG
Posted: Mon Jan 02, 2006 12:23 am 
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Just was wondering with a dual duel set up on my EF XR6, which reading does the trip computer read for Distance to Empty
a) Petrol
b) Combination of LPG + Petrol
c) Whichever fuel is currently running

Im guessing its only petrol but the other day i put some gas in and the DTE kept rising instead of staying constant, and also when running on gas the DTE decreases Km's .. so im not too sure!

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Posted: Mon Jan 02, 2006 12:47 am 
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depends it gets it from the dash so if ure on gas and you can see how much gas u have left by looking at the fuel guage it should be both. so yeah basically it takes it from whatever the instrument cluster is reading
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Posted: Mon Jan 02, 2006 12:55 am 
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Petrol most of the time; at least mine is
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Posted: Mon Jan 02, 2006 10:00 am 
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Rapier wrote:
depends it gets it from the dash so if ure on gas and you can see how much gas u have left by looking at the fuel guage it should be both. so yeah basically it takes it from whatever the instrument cluster is reading
If your inst cluster fuel gauge is set up to read both fuels, then this is correct. Bear in mind that all the trip computer knows and sees basically is injector pulse width and fuel level - it doesn't differentiate which fuel is being used. With LPG of course the injectors are disabled, but the trip computer still sees this input. Since you'll use more LPG than Petrol in conventional LPG systems (non LPG injection)you'll still find your trip computer readings for LPG will still be reasonably accurate, but not as accurate as petrol (that's what I've found anyway).
The trip computer will not show any LPG info on Tickford LPG systems, as the injectors are disabled directly by the ECU. When switching fuels while the engine is running, it takes a while for the readings to change over.
Anyway, enough blurb from me . . . . .

 

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Posted: Mon Jan 02, 2006 12:20 pm 
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Can you wire in the trip comp to shut up its beeping when I have no fuel but am running LPG?
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Posted: Mon Jan 02, 2006 8:29 pm 
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mine will show tghe LPG fuel being used, but distance that can be travbeled is still petrol. might be different for factory systems.

 

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Posted: Mon Jan 02, 2006 9:52 pm 
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twirqurky wrote:
Can you wire in the trip comp to shut up its beeping when I have no fuel but am running LPG?
Leave your selector s/w on LPG before you start your car for the day.

 

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Posted: Tue Jan 03, 2006 1:20 am 
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Still beeps
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Posted: Tue Jan 03, 2006 2:45 am 
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so put in $5 of fuel to shut it up! also helps as an emergency reserve.....

 

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Posted: Tue Jan 03, 2006 9:56 pm 
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yer my trip computer is on 0 ..... petrol is just on top of the red, and filled up with gas...

why is it showing 0 even though there is still some petrol left in the tank

 

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Posted: Tue Jan 03, 2006 11:23 pm 
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put at least a quarter tank of petrol in it and secondly it may take a while for it to show above '0' kms eg at least 100 or 200kms of driving around
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