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Model specific boards => Golf mk2 => Topic started by: JezGTI on 07 October 2006, 11:55

Title: MFA Secret
Post by: JezGTI on 07 October 2006, 11:55

Hi all, long time no..ahem...well nothing.

I would have put this with the Sticky of similar subject but I think only moderators can reply to stickies?

Anyway, I seem to be having a problem with my MFA readouts. I've been into the secret menu screens to help diagnose the problem but the thing is that I don't know what the typical readings should be. Does anyone have these readouts?

Great to be back, thanks Jez

Title: Re: MFA Secret
Post by: JezGTI on 10 October 2006, 20:26

Anyone??.......Please.

Title: Re: MFA Secret
Post by: ...joe on 10 October 2006, 23:12

http://www.golfgtiforum.co.uk/index.php?topic=27772.0

^^ is that what your after?

Title: Re: MFA Secret
Post by: JezGTI on 11 October 2006, 00:17

Not quite (but thanks anyway), what i'd like to know is what should the actual readouts display, in numbers? For example I get a reading of 450ish for the vacuum, is this normal?

Title: Re: MFA Secret
Post by: takethefifth on 11 October 2006, 00:36

I had a go tonight and this is what i got for an '88 PB GTI, 117k, K&N 57i, been running very well.

At Idle:

position 1:
Default: Engine code - 123
1: Land code - 3
2: Speedometer - 955
3: Upper rev limitter - 7418
4: Lower rev limitter - 1325
5: Decelaration fuel pressure - 220
6: Display test

MFA switch on position 2:
Default: Test programm of programmed bytes (checksum) - 2194
1: Intake Vacuum - 426
2: Digital rev counter - 900
3: Fuel usage (instantaneous) - 0.3
4: Signal from speedo sensor - 0
5: Oil temperature (like default)
6: Ambient temperature (like default)

At just under 3k rpm postion 1 readouts are the same. Switch 2 are;

MFA switch on position 2:
Default: Test programm of programmed bytes (checksum) - 2194
1: Intake Vacuum - 292
2: Digital rev counter - 2880
3: Fuel usage (instantaneous) - 0.6
4: Signal from speedo sensor - 0
5: Oil temperature (like default)
6: Ambient temperature (like default)


I couldn't put this info in the sticky but i hope Joe can. Hope it helps.  :smiley:

Title: Re: MFA Secret
Post by: Agreeable Slick on 11 October 2006, 01:11

Done here.

http://www.golfgtiforum.co.uk/index.php?topic=48372.0

 :cool:

Title: Re: MFA Secret
Post by: takethefifth on 11 October 2006, 01:33

Smooooth!  :cool:

Title: Re: MFA Secret
Post by: Neaty on 11 October 2006, 21:26

I cant believe I have had 4 Mark 2's and not known about this secret MFA thing. First thing I am gonna try when I get back in one  :smiley:

Title: Re: MFA Secret
Post by: monzablue16v on 12 January 2007, 22:55

Do we have this for a 16v guys or could somebody check theres please? I am having loads of fuelling problems at the moment. cheers :)