MFA or Computer help needed.

Decided to give my engine bay a clean today as i had a day off work and now my trip thing on the dash has no display at all it did come back briefly with just the zeros on it but then it went again was fine before as well I did jet wash the engine bay with the engine running and afterwards everything was fine except for this any ideas?

To be more precise its just the part that tells you your milage and stuff when you press the end of your wiper stalk.

hello, have you checked the connecter plugs ( near the gearbox) are still connected, also check the earth straps are still inplace especially the one from the back of the rocker cover. hope this helps. fingers crossed knowing golfs it will work again when its dry. :?

mk1jim said

hello, have you checked the connecter plugs ( near the gearbox) are still connected, also check the earth straps are still inplace especially the one from the back of the rocker cover. hope this helps. fingers crossed knowing golfs it will work again when its dry. :?

Thanks and i will give it a go.

there is a small brown/white wire that should be connected to the rocker cover which earths the mfa, easy to knock off. Causes all sorts of problems with the dash. allot of water could also aggrevate a poor connection.

Rob ;o)

where does the mfa earth wire connect?

top right of rocker cover where the rocker cover earth strap to bulkhead is( hidden by the air tube to the inlet manifold) seen the picture on your other thread very clean

I wouldn't recommend cleaning it with a pressure washer again use gunk and hot soapy water and then rinse. a pressure washer or steam cleaner forces water in everywhere even past good water seals and can cause massive problems.

Also give it a good run the heat of the engine will help dry it out.

Rob  

Ok thanks for the replies :wink: but everything seems to be back to normal now

Great and it does look good

Robb said

top right of rocker cover where the rocker cover earth strap to bulkhead is( hidden by the air tube to the inlet manifold) seen the picture on your other thread very clean

I wouldn't recommend cleaning it with a pressure washer again use gunk and hot soapy water and then rinse. a pressure washer or steam cleaner forces water in everywhere even past good water seals and can cause massive problems.

Also give it a good run the heat of the engine will help dry it out.

Rob  

yeah that engine in the other post is Walts and it looks stunning!

so the earth strap goes to the rocker cover but where does it come from?

Cheers
Steve

my earth strap comes from the base of the ingition coil on the bulkhead, the brown white wire breaks out of the loom above the gearbox with the oil pressure sensor wire brown/yellow wire next to it.

ah nice one thanks, my rocker cover only has the big earth strap so maybe thats why my mfa doesnt work.

Cheers
Steve

Robb, anychance of a photo of the mystery MFA earth? damned if i can find it, although i can find the coil-rocker earth and yellow oil sensor wire, but the brown/white :dontknow:      :dontknow:

You see my clock tells its own time!!! i once managed 3 miles at 200mpg and AvMPH of 87, i didnt even get to 40!

Mine has a join in it but i hope this is clear enough. your looking at the right hand side of the engine just above the gearbox.

Sometimes I wish my MFA didn't work as it distracts me from the road and I can't resist pushing buttons!!!  

Rob