5th injector wiring problems??

Hi I am having cold starting trouble with my 1.8 Gli, The 5th injector is not squirting any fuel, I have checked the wiring and have a connection from the Black/Red wire to the starter motor, the Green/White is connected to earth. I have checked the voltage to the 5th injector and am only getting a reading of 47mv when cranking the engine. I have replaced the fuel pump relay. I am a bit stuck can anyone suggest anything. Thanks

Hi I'm still having trouble with this.

The 5th injector will only operate if I connect a lead from the Green/White connector on the thermo time switch direct to earth. I have so far replaced the fuel pump relay, the 5th injector, the thermotime switch.

Both pins on the thermo time switch are earthing ok but when i connect the plug the 5th injector doesnt work.

I have put a jump lead over the TTS plug and still the 5th injector wont operate.

Any advice appreciated.

Ok think I've sorted this, I took the TTS of my other Mk1 and she started up straight away, need to buy a working replacement now.