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Author Topic: LPG Gauge accuracy  (Read 2389 times)

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tunnie

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Re: LPG Gauge accuracy
« Reply #15 on: 10 March 2011, 21:50:59 »
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I know they are poor, but....

Having to re-setup mine after a retard moment. 90k growing.

Trouble is, the voltage is varying between a value, lets say 1.8v when tank half full to 3.22v.  This is all the time when in motion, spening most time on 3.22v

Surely the ECU reset wouldn't have buggered it?

Just a thought... Isn't yours one of the specified ones? Or was that Tunnies? :-/ :-/

Mine is specified at set amounts i think? Remember you setting them at Towcester?

Explains why I can get 70-90 miles on the red light!  ;D

Yeah, but you've rotated the tank a fraction since I set it up... Should have been about 60 miles on red, 70 ish on a run... That's what mine's at :y

Handy to know that it's consistently 60 miles after it comes on though :y

Yup. Although once I was very surprised I made it home, gauge on tank itself registered nothing, it was almost resting on the end stop, still got 75 miles out of it! - It did beep at me once, only had to force it back once.
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TheBoy

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Re: LPG Gauge accuracy
« Reply #16 on: 11 March 2011, 12:19:36 »
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I know they are poor, but....

Having to re-setup mine after a retard moment. 90k growing.

Trouble is, the voltage is varying between a value, lets say 1.8v when tank half full to 3.22v.  This is all the time when in motion, spening most time on 3.22v

Surely the ECU reset wouldn't have buggered it?

Just a thought... Isn't yours one of the specified ones? Or was that Tunnies? :-/ :-/
Not at the time, though I time AC now do a 90 growing, so it could match a Stag one (but the calibration is still pathetic).

My point seems to be that I reckon the gauage 'electronics' have gone haywire since resetting ECU. Can't see how though...
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TheBoy

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Re: LPG Gauge accuracy
« Reply #17 on: 11 March 2011, 12:21:05 »
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I know they are poor, but....

Having to re-setup mine after a retard moment. 90k growing.

Trouble is, the voltage is varying between a value, lets say 1.8v when tank half full to 3.22v.  This is all the time when in motion, spening most time on 3.22v

Surely the ECU reset wouldn't have buggered it?

Just a thought... Isn't yours one of the specified ones? Or was that Tunnies? :-/ :-/

Mine is specified at set amounts i think? Remember you setting them at Towcester?

Explains why I can get 70-90 miles on the red light!  ;D

Yeah, but you've rotated the tank a fraction since I set it up... Should have been about 60 miles on red, 70 ish on a run... That's what mine's at :y

Handy to know that it's consistently 60 miles after it comes on though :y

Yup. Although once I was very surprised I made it home, gauge on tank itself registered nothing, it was almost resting on the end stop, still got 75 miles out of it! - It did beep at me once, only had to force it back once.
I think thats a sign you've got the tank wrong.

On mine, one you have had a low pressure warning, thats your lot.  Maybe a couple of hundred yards more, but no more...
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albitz

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Re: LPG Gauge accuracy
« Reply #18 on: 11 March 2011, 12:41:32 »
Its supposed to beep when its about to run out  :question :o :-/
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TheBoy

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Re: LPG Gauge accuracy
« Reply #19 on: 11 March 2011, 12:43:50 »
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Its supposed to beep when its about to run out  :question :o :-/
No, it gives an error about low pressure, then switches to petrol.  The low pressure warning is because there is less than a fart in the tank.
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albitz

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Re: LPG Gauge accuracy
« Reply #20 on: 11 March 2011, 13:44:00 »
The only way of telling that mine has run out is the green light (on/off) blinks very fast.
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TheBoy

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Re: LPG Gauge accuracy
« Reply #21 on: 11 March 2011, 13:57:36 »
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The only way of telling that mine has run out is the green light (on/off) blinks very fast.
Ah, sorry, thought yours was Stag.  I suspect each system has its own method of alerting drivers to conditions.

The Stag bleeps 12 times when the pressure drops below whats set in the software. Bloody annoying - similar to those stupid, gay, pathetic, crappy Sony Xplode head units that do similar when you turn ign off.
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albitz

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Re: LPG Gauge accuracy
« Reply #22 on: 11 March 2011, 14:24:22 »
It is Stag - maybe someone has disconnected, or forgotten to connect the bleeper ? :-/
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TheBoy

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Re: LPG Gauge accuracy
« Reply #23 on: 11 March 2011, 14:27:21 »
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It is Stag - maybe someone has disconnected, or forgotten to connect the bleeper ? :-/
Stag 300?
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albitz

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Re: LPG Gauge accuracy
« Reply #24 on: 11 March 2011, 14:33:40 »
break nose - ask lazytinker. ::) ;D ;D
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Danny

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Re: LPG Gauge accuracy
« Reply #25 on: 11 March 2011, 14:52:14 »
look at it this way, my mate just had his skyline remapped to the mid-400bhp area but his own mistake in preparations led to a complication that killed his engine

£5000+ cost for rebuild :(

i know its unrelated to LPG issues but still, just highlighting things could be so much worse!
« Last Edit: 11 March 2011, 14:53:16 by D4NNY »
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Kevin Wood

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Re: LPG Gauge accuracy
« Reply #26 on: 11 March 2011, 16:05:42 »
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I think thats a sign you've got the tank wrong.

On mine, one you have had a low pressure warning, thats your lot.  Maybe a couple of hundred yards more, but no more...

Yep. Agreed.

The pickup should be immersed in liquid until the end. If it starts drawing vapour from the tank while there's still a few litres of liquid, the engine will still run "miss daisy" fashion by drawing vapour up the line but it will switch to petrol as soon as you put any serious load on it.

Once mine has dropped to petrol it will switch back to LPG and idle grumpily for a few seconds but that's it. If it's doing a number of miles after dropping to petrol once then the pickup is not reaching the bottom of the tank IMHO, probably because the tank is at the wrong angle.

Kevin
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tunnie

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Re: LPG Gauge accuracy
« Reply #27 on: 11 March 2011, 17:23:46 »
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I think thats a sign you've got the tank wrong.

On mine, one you have had a low pressure warning, thats your lot.  Maybe a couple of hundred yards more, but no more...

Yep. Agreed.

The pickup should be immersed in liquid until the end. If it starts drawing vapour from the tank while there's still a few litres of liquid, the engine will still run "miss daisy" fashion by drawing vapour up the line but it will switch to petrol as soon as you put any serious load on it.

Once mine has dropped to petrol it will switch back to LPG and idle grumpily for a few seconds but that's it. If it's doing a number of miles after dropping to petrol once then the pickup is not reaching the bottom of the tank IMHO, probably because the tank is at the wrong angle.

Kevin

I can get about 15 miles ish after its beeped on a low tank, maybe 20
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