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Lodgy
P Plater
68 Posts
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 Posted - 19 Aug 2010 : 6:22:24 PM
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Gday, one of my mates got his VP v6 tuned about a month ago as he works on a cotton farm ( i think) at Tandow, which is 240 kms from here in Sunraysia. Before the tune he couldnt get up and back on a tank, but since then he got there in just a quarter of a tank.
He can't remember how much he paid for the tune all he know is it was 200 for the tune and to get something fixed in the steering
I was just wondering if it was a good deal? He seems to think it was 150 for the tune and 50ish for the steering.
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Mechknight73
National Driver
1001 Posts
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Posted - 20 Aug 2010 : 11:44:35 AM
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| It depends on what kind of tune, specifically what the mechanic did. Some people, their idea of a "tune" is change the oil and plugs. With others, it's all of the above, plus a carbon clean, then do the actual tuning at EFI level. If his fuel economy is that good, this mechanic must be fairly thorough. Just changing the oil, filter, plugs and leads will improve fuel economy, but not this dramatic a change. He's got a good deal, because this tune will pay for itself in a very short amount of time. |
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Lodgy
P Plater
68 Posts
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Posted - 21 Aug 2010 : 1:35:16 PM
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yeah it must of been but when i think about it i probably don't even need a tune.
I just filled the VN up because it was practically empty according to the gauge, but it still only fitted 36 litres in, so really if im getting just over 400 kms from 35ish litres than its actually good economy hey.
Another question is would running my amp power wire down the same side as the factory loom play around with the fuel gauge sender wires and give the gauge the wrong reading?
Thanks for the help, i wouldn't know much if i didn't join this forum
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Mechknight73
National Driver
1001 Posts
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Posted - 21 Aug 2010 : 2:46:59 PM
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In theory, no. Do you have a factory stock fuel tank, or do you have it "half removed" for an LPG tank? The capacity of a stock V6 tank is about 65 litres.
Inside your fuel tank beneath the sender at the top, is the float. This is a variable resistor, which is how your fuel gauge works. When full, the float raises it to the highest level, so it shows full. The closer to empty it goes, the more resistance. It's unlikely electromagnetic interference (high amperage power cable to amp) should interfere with your fuel gauge. Check the wire from your fuel sender all the way to the gauge, and see if you can find any breaks or damage. This, or a stuck float are the two most likely reasons why your fuel gauge isn't working properly |
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Lodgy
P Plater
68 Posts
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Posted - 21 Aug 2010 : 3:48:02 PM
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yeah it is a full size tank, the wires look fine from what i have seen, so ill have a look at the float next weekend.
I suppose i could just drive around with a jerry can of fuel in the back and just fill it up when i run out and then see how many kms i get |
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Mechknight73
National Driver
1001 Posts
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Posted - 21 Aug 2010 : 11:17:33 PM
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| You could, but I personally would want to know why the fuel gauge isn't working properly. Use your trip meter to make sure, and the jerry can in the boot is still a good idea, just in case your fuel gauge decides to REALLY play funny buggers |
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Lodgy
P Plater
68 Posts
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Posted - 23 Aug 2010 : 12:34:10 AM
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| yeah but i suppose atleast it isnt reading more than it has so i dont really have to stress that much |
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Mechknight73
National Driver
1001 Posts
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Posted - 23 Aug 2010 : 10:16:14 AM
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| Be thankful you didn't choose an XB Falcon lol. Despite the Australian Design rule in 1974, the fuel gauges in those have been known to read 1/4 when they're actually empty. The design rules states that when the gauge reads dead empty, or shows a reserve light, you must have enough fuel to make it another 65km |
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Lodgy
P Plater
68 Posts
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Posted - 23 Aug 2010 : 6:38:01 PM
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| well thats handy, ill remember that one, even if i only get another 50 im happy |
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Mechknight73
National Driver
1001 Posts
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Posted - 24 Aug 2010 : 11:01:09 PM
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| Holden VDO gauges always tend to be very accurate. The only exception is when there's something wrong with the wiring or the sender it's plugged into |
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