Author Topic: INFO: Hacking the mfa .....  (Read 35410 times)

Offline Silverback

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INFO: Hacking the mfa .....
« on: 18 August 2007, 16:58 »
Has anyone else worked out that they can sort of hack the mfa in their vr6, might also work on gti's..

Basically, press and hold the trip reset button, without letting go of the button turn the ignition to no 2 (just before it starts the car) then turn the ignition completely off then start the car (don't let go of the trip button till now) now the digital milometer will display "1".

By pressing the trip button it will scroll through numbers 1-8, they all give various readings.. Number 7 displays electronic rev gauge which is quite cool..

Thought i'd share.. And don't worry, when u turn the ignition off it will reset back to showing the miles etc.

Have fun
« Last Edit: 21 August 2010, 00:27 by boneybradley »

Offline Lewism3

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Re: Mk3 vr6 - hacked the mfa!
« Reply #1 on: 18 August 2007, 21:56 »
What do the other functions display?

Offline Lewism3

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Re: Mk3 vr6 - hacked the mfa!
« Reply #2 on: 18 August 2007, 23:28 »
God are we all nuts???

I've just been outside in the pouring rain to try this and it works on my 8v GTI. Function 7 is way cool!! Not to sure what the others do. Anybody have any ideas?

Offline remapped

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Re: Mk3 vr6 - hacked the mfa!
« Reply #3 on: 18 August 2007, 23:31 »
FFS !! i see my self going out in the rain to try this lol !!

good hack ;)
OEM(ish) G3GTi 8v5dr

Offline Silverback

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Re: Mk3 vr6 - hacked the mfa!
« Reply #4 on: 19 August 2007, 00:12 »
Yeh it is pretty cool. One of them is sort of a stop watch that only runs when the car is moving but doesn't run in real time sadly. The rest just ain't that cool but i'll post em up at some point. You can also hack the other side of the mfa to get instant fuel consumption rather than averages which is pretty cool..

I'll let u work out how lol

Offline Silverback

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Re: Mk3 vr6 - hacked the mfa!
« Reply #5 on: 19 August 2007, 00:30 »
cool, i will try that one tomo on my GTI and let u kno if it works

nice one

how u manage to come round and find that one then,    :laugh:

Believe it or not i was bored lol

Offline Silverback

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Re: Mk3 vr6 - hacked the mfa!
« Reply #6 on: 19 August 2007, 11:46 »
Yeh i usually have the fuel one on the right and the digital rev on the left

Offline Silverback

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Re: Mk3 vr6 - hacked the mfa!
« Reply #7 on: 19 August 2007, 11:53 »
Ok.. Number 1 always says 6098
Number 2 just goes to number 3! Number 3 always says 31670, number 4 goes to 6, number 5 just lights up every digit on the display, must be a tester. Number 6 is that sort of stopwatch, number 7 revs! Number 8 should be a trip but doesn't seem to move! Well just written all that through my phone lol, now i'm gonna go try sort my crappy alarm!

Offline MowatGTI

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Re: Mk3 vr6 - hacked the mfa!
« Reply #8 on: 19 August 2007, 12:23 »
This is genuis!

If i do this, when i switch the engine off, does it go back to normal then?

Thinking on doing it today.  Just don't want to screw it up.

Digi rev counter!  I like!

Offline Silverback

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Re: Mk3 vr6 - hacked the mfa!
« Reply #9 on: 19 August 2007, 12:40 »
Yeh it resets when u switch the engine off, u can't mess it up, it's like a debug feature