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what would cause bad fuel consumption on a golf VR6?


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vagcom is a diagnostics tool, basically someone plugs a lead into your car and it reads the ecu for any faults... then you know what the problem is and can fix it. :)

It could be the maf isnt getting the fuel/air mixture correct, is it running rough or lumpy at all, is the any stutter or hold back when you're driving?

when you say you're driving it like a granny are you putting it in 5th a lot? that reduces the mpg loads, and have you looked on your mfa trip computer to see what the mpg reading is??

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What year is your car may help. If its a later type i would guess at MAf too as the car would seem fine with a dead MAF but run and smell rich!

thanks mate, its a 1992 vr6 with a 1994 triple AAA engine thats converted to running dizzy.

would the temp sensor be an issue?

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Fuel capacity is 55 litres which is around 12 gallon.

Average mpg v distance on a tank.

20mpg = 240 miles

25mpg = 300 miles

30mpg = 360 miles

35mpg = 420 miles

Is that brimming the tank and taking it right to empty?

MFA says im getting about 30mpg but not getting 360 miles. I tend to fill up just before the needle goes into the red.

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