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Trip Computers and LPG 

 

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 Post subject: Trip Computers and LPG
Posted: Sat Jan 13, 2007 4:49 pm 
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howdy,

im going to be wiring up a trip computer in the next few weeks, but the question im asking is is it possible to have the trip computer wired up to the LPG gauge to show inst. consumption, avg consomption and range to empty?

cheers.

 

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Posted: Sat Jan 13, 2007 5:33 pm 
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not range to empty but i think the consumption is right, range to empty is based on how much fuel is in the tank. U might b able to set it up if u r good enough at electronic stuff

 

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Posted: Sat Jan 13, 2007 5:56 pm 
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hmm im ok at electronic stuff, but im scared that ill f**k something up lol. has anyone actually done it before?

 

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Posted: Sat Jan 13, 2007 6:38 pm 
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You will get all the petrol features if your gauge for the gas is wired to the cluster gauge and not the gas kit one.

 

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Posted: Sat Jan 13, 2007 7:15 pm 
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i find the range to be so ridiculously inaccurate anyway, on both my EL ghia and my ED fairy

 

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Posted: Sat Jan 13, 2007 7:17 pm 
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i have a seperate gas gauge, it sits in one of the little holes above the trip comp. slot, next to the rear window heater button.

 

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Posted: Sat Jan 13, 2007 7:33 pm 
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If you get a new sender for the tank and get it wired via a change over relay to the gauge all should be good.

 

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Posted: Sat Jan 13, 2007 7:35 pm 
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too bad the LPG gauge dosent work :P

 

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Posted: Sun Jan 14, 2007 11:51 pm 
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My Instant economy, Avg economy, Avg speed are all fairly accurate when running on LPG, but the range to empty reads on what's in the petrol tank, as i have a seperate lpg gauge mounted down near the console.

By fairly accurate, it's usually within 1ltr / 100kms on the Avg economy, worked out by the trip distance & how much fuel i pump back into the tank. I'm running a Parnell SVI Lpg Injection setup, with a seperate ECU for the lpg injectors.

Cheers

ToranaGuy

 

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 Post subject: Re: Trip Computers and LPG
Posted: Mon Jan 15, 2007 12:24 am 
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alfy wrote:
is it possible to have the trip computer wired up to the LPG gauge to show inst. consumption, avg consomption and range to empty?
Check your existing LPG sender is compatible - check the guage on the tank - should have the range (in ohms)on the bottom of the dial.
Then compare with the petrol sender resistance range.

 

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Posted: Mon Jan 15, 2007 12:27 am 
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hmmm i have never looked at the gauge on my tank mainly coz its stamped on the lid "do not open - high pressure" or sumfin like that :?

 

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Posted: Mon Jan 15, 2007 10:59 pm 
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twason wrote:
You will get all the petrol features if your gauge for the gas is wired to the cluster gauge and not the gas kit one.

I had an EF Fairmont with Tickford Gas & the Trip Computer didn't work for the Distance to Empty..

 

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Posted: Tue Jan 16, 2007 12:51 am 
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cheersdude wrote:
I had an EF Fairmont with Tickford Gas & the Trip Computer didn't work for the Distance to Empty..
On the gas setting it wouldn't - the injectors are disabled through the LPG ECU, hence no pulse duration info for the trip computer. On petrol it should be as per a std petrol ECU.

 

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Posted: Tue Jan 16, 2007 8:29 am 
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i don't know if my trip computer is accurate, but it does show figures when on LPG.

 

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Posted: Tue Jan 16, 2007 1:50 pm 
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mine works fine for everything, although i was told that its not accurate as the density of gas is different to the density of fuel therefore 1L og gas doesnt equaly 1L of fuel or something??

 

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