Originally Posted by
AstoN_B
Check around battery for a thin brown wire which needs to be connected to the battery earth, I missed this when rebuilding my efi and had exact same problem. Thought I'd messed something up!
It had fallen away from the other earths and was sitting against bulkhead. I believe it's the earth for the pump relay and the power comes from the ecu.
Hi people I no this post was from years ago but I'm having the same sort of issue
Just read about a brown wire to the battery earth from the ECU I cant seem to find any earth wire