64 SPLIT 0 Posted August 13, 2005 The MFA on my 16Valver only shows oil temp, outside temp, time and elapsed journey time and not the MPG (which I'd like to know as it seems to be pretty crap at the mo!) and something else doesn't display either which I can't remember! Also the rear spoiler doesn't activate at speed, only off the switch, so I was wondering if both things could be related - ie. is there a sender off the gearbox that feeds info to both items that may be knackered? Where does MFA get its reading from for the MPG? Quote Share this post Link to post Share on other sites
RW1 0 Posted August 13, 2005 If the sender on the gearbox is skyward, speddo would be dead. Not put a stereo ICE in recently? Quote Share this post Link to post Share on other sites
64 SPLIT 0 Posted August 14, 2005 The previous owner has fitted an aftermarket stereo set up in the car. Speedo (dial guage) works fine, but average speed and MPG on the MFA don't work. Is there a way to get it working again with an aftermarket stereo installed? I've read on here that there should be a blue wire with a white trace behind the stereo but I've looked and can't see one - only wires coming from the actual headunit itself ?! Quote Share this post Link to post Share on other sites
Bobby 0 Posted August 14, 2005 check the vacuum hose on the back of the clocks is plugged in and follow it into the engine bay to make sure it isn't damaged, does your spoiler raise of the dash switch? Quote Share this post Link to post Share on other sites
RW1 0 Posted August 14, 2005 If the vacumm pipe has dropped off, I'd expect to see 99.9 mpg indicated. Quote Share this post Link to post Share on other sites
Rob Heath 0 Posted August 16, 2005 Where is the vacuum pipe located? Mine occasionally shows 99.9mpg Quote Share this post Link to post Share on other sites
krnau 0 Posted July 15, 2008 I recover this post, to know the way it was solved (if it was..) because I have the same problem. I have disconnected the blue/white wire and the spoiiler doesn't work, and neither does the mfa (but oil temp, driving time do). however, in the mfa cheat mode, mpg does work :shrug: :shrug: :shrug: Quote Share this post Link to post Share on other sites