1.8t electrics/clocks issue

[Screech16v]

Hope some one on here can shed some light,done a 1.8t engine conversion and got a vag tech to do the loom,everything works apart from the clocks,well the clocks work only when the ignition is switched on,as soon as its cranked or running the lcd's go blank and the fuel and temp drop to zero,also rev counter does nothing,anybody had this happen to them,aswell the handbrake light stays on very faint for about 20 secs after turning engine off,every earth has been checked and cleaned ,all sugestions welcome thanks


mark.

[CJA321]

Yes. Theres been a ground removed. From looking at wiring diagrams  it runs through the headlight loom. Gets disturbed somehow. Your clocks have  a 28 pin plug. Pins 3 and 5 run to ground. They run to U1 and U2 in the fusebox.  Ill have a look at wirig diagram to remember what pins in those plugs. I spilced two wires between the 28 pin plug  and the fuse box. And earthed them on the dash with some ring conectors.

[CJA321]

T28/3 to U1/10 to permanant ground.

T28/5 to U2/13 which then runs off to an earth connector in the headlight harness it says.

So basicly spice a wire in each of those wires in the clock harness and earth them. Dash was fine for me

[Screech16v]

cheers cj will give this a try and see what happens 

[Screech16v]

You sir are a legend  ,only i still have no rev counter and a flashing oil light whilst running although i have good oil pressure   .

[CJA321]

It took me f**king ages to figure it out haha!! Glad it actually saved someone some hastle! May be a wiring issue for the oil pressure. My loom i had made had two separate spade connectors for the oil pressure switch and oil temp sensor. Not sure on the wiring for those thou.

[Screech16v]

Cheers for that,saved me a load a grief,4 weeks from starting the conversion i finally got to drive it home 

[CJA321]

Good feeling huh? Get some pics up!

[Screech16v]

Yes mate it is,bit nerve rackin although the engine has only 60000 on it ,it had been laid up for 4 years but its all good, no pics yet as i have some tidying to do 

[Gash]

glad yours was done in 4 weeks instead of my 4 months!

i get a similar issue, flashes oil and coolant low every time i start the car, even though i know iv got full of both