APH wrote:the tacho should have its own speed sensor in the gearbox, sealed with a wire seal to stop you undoing it. he existing speed sensor still feds the ecu, but the loom under the passenger fuse box has a plug that has to be changed (as mentioned already), the dash stops getting its signal from the vans own speed sensor and takes it from the tach instead. If someone has bodged up the tacho install, then that's probably why it dosen't work. You could try finding the loom plug under the fuse box and re link the original linked 2 wires to give the dash its signal from the vans own speed sensor and see if it works.
Andy
daz1412 wrote:check and clean all the fuses including those behind the glovebox
daz1412 wrote:do you have a tacho fitted by any chance?
Really Good Idea wrote:Removal and cleaning didn't work even left on the radiator, neither did a good contact cleaner spray. Looking at the soldering, there are lots of rounded out solder joins for the wire connector and also the two digital displays and I think this may be the problem. Gonna find someone with a soldering iron.
If this doesn't work, how can I test the wiring? I'm getting a multimeter in the next couple of days.daz1412 wrote:check and clean all the fuses including those behind the glovebox
Checked all the fuses and replaced all the mini and J type fuses with the correct rated. Noticed some of the relays are missing which according to this and the Haynes manual are: -
R5 - Generator cut off
R8 - Bulb check (vehicles without abs)
R9 - Injector Module (mines a TDCi - I think)
R11 - Lift Pump - some TDDi models??
R12 - Engine Cooling fan
Do I need all of these? Should I be checking others and how? Where should I buy these?daz1412 wrote:do you have a tacho fitted by any chance?
There is an RPM dash, also doesn't work.
Current status is it all powers up, the gas seems to register, but the engine fuel, rpm and MPH don't do a thing, and the mileage stays the same.
daz1412 wrote:So is your temperature gauge working? Without the tacho fitted I doubt you're having the same issue as myself. I'm pretty confident mine is going to be the plug pictures above.
Really Good Idea wrote:
Noticed some of the relays are missing which according to this and the Haynes book of lies
R5 - Generator cut off
R8 - Bulb check (vehicles without abs)
R9 - Injector Module (mines a TDCi - I think)
R11 - Lift Pump - some TDDi models??
R12 - Engine Cooling fan
.
daz1412 wrote:Andy, had her apart today and done abit of investigating I cant see the picture you've uploaded but i'm assuming this is the plug (maybe the other side) that you're referring to? If so, mine had 3 loop cables connected. I'm assuming that's to allow the tacho to work. The green/brown cable which connected to the tacho I managed to trace all the way back to this connector also.
the tacho was definitely all plugged up and powered on so i'm assuming there's a problem other than that.
not sure what cables will need connecting to get the speedo to work though. Any help would be perfect!
For reference that is now my plug.
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