MFA Problems

[Blazing Storm]

My MFA hasn't worked since owning my car and now more important things are sorted I want to try and sort it. The only two things that work are time and ambient temperature.

Here's what the other settings give:

Driving time: 0:08 (reaches that after about five minutes, as it slowly goes up)
Distance driven: 0 miles
Average speed: between about 1 and 3
Average consumption: 1.0
Engine oil temperature: ---

It doesn't matter how long I drive for it doesn't change.

I'm not sure what to try so do you guys know what could be wrong? I've tried clearing the memory but that doesn't make any difference. Also removed the fuse and inserted again after 10 secs but that didn't help either.

Thanks in advance

[Blazing Storm]

Anyone got any ideas?

[Conker]

I'm no expert, but the read-outs are controlled by both vac pipes and temp senders etc. so check for leaks/test the senders, but to be honest, it sounds like the clocks are fooked. You could always try removing the clocks (it looks easy) and check the connections at the back of them.

[Blazing Storm]

OK, I'll see how easy it is to do. Thanks for the response.

[Simon8v91]

John has done a great guide here for taking them out:

http://www.golfgtiforum.co.uk/index.php?topic=10385.0

tbh yours sound well gone.  Have a look at your earthing (valve cover to coil bracket) as well as Conker's suggestion, otherwise its Ebay time. 

[Blazing Storm]

Cheers, will look into it.

[Peel]

Mine reckoned I was doing 90+ mpg as I tanked down the A34 on Saturday!
I have since found a disconnected pipe.......

[Blazing Storm]

A question has just occured to me. I have 140MPH clocks in my 8v Golf. I thought 120MPH clocks were fitted to the 8v and 140MPH to 16v; is this not the case?

With the underdash tray out I can see a hose connected to the MFA which must be for the MPG reading. I'll have to check there are no breaks in it. In the engine bay there is a hose that has been cut and plugged; not too sure what it is. It's located at the back by connection to the airbox.

[meg1980]

No mk2 16v cars wer fitted with 160mph clock and run out model 8 valves 140mph clocks.As for mfa there should be a vacuum pipe on the back off the clock and also if the oil temperature still aint working ceck the oil switch in the head.

[Blazing Storm]

No mk2 16v cars wer fitted with 160mph clock and run out model 8 valves 140mph clocks.As for mfa there should be a vacuum pipe on the back off the clock and also if the oil temperature still aint working ceck the oil switch in the head.

OK, thanks. Just wondered if clocks had been replaced and connections broken or something. The vacuum pipe is definitely connected to the clocks.

If I bought new clocks is there anyway of changing the mileage to what my current ones say now?