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Author Topic: New gearbox = MFA showing 13mpg average?  (Read 1283 times)

Offline HuwMk2

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New gearbox = MFA showing 13mpg average?
« on: 10 February 2011, 21:51 »
Just had a new gearbox fitted on my 1992 8v gti today and now I'm only getting 13.6mpg according to the MFA, any ideas???
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Offline JimR

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Re: New gearbox = MFA showing 13mpg average?
« Reply #1 on: 10 February 2011, 22:23 »
Vac pipe has been dislodged somewhere, MFA is purely an estimation, have you noticed a marked reduction in fuel consumption?
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Offline messenjah

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Re: New gearbox = MFA showing 13mpg average?
« Reply #2 on: 12 February 2011, 14:12 »
ive got exactly this same problem ... lol
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Offline HuwMk2

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Re: New gearbox = MFA showing 13mpg average?
« Reply #3 on: 16 February 2011, 18:54 »
No reduction in actual mpg. Any ideas where this vac pipe might be located so I can sort it???
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Offline SoundillusioN

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Re: New gearbox = MFA showing 13mpg average?
« Reply #4 on: 16 February 2011, 19:42 »
Have a look at this thread which is looking at similar issues:

http://www.golfgtiforum.co.uk/index.php?topic=182830.0
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