I just tried testing the current draw at the brown wire to the inertia switch and it's tiny. The 10A setting was registering nothing, so I dropped it to the 200m and then 20m setting and was getting a reading of 0.01. Does this sound about right?

Mems Relay Unit - Scorched Connector
#16
Posted 01 July 2015 - 07:48 AM
#17
Posted 01 July 2015 - 09:14 AM
#18
Posted 01 July 2015 - 10:15 AM
Ahh, that explains it! I'll give it another go...
#19
Posted 01 July 2015 - 10:29 AM
On the 10a setting I am getting 0.01
#20
Posted 01 July 2015 - 03:11 PM
FS
#21
Posted 01 July 2015 - 04:08 PM
I'm putting the 2 connectors into the brown wire with the engine running. That's what I understood by 'breaking into the wire', but maybe I'm way off course?
#22
Posted 20 July 2015 - 01:33 PM
Ok, here's the latest. The car made it back to the UK without any problems. It was plugged into the diagnostic computer and I have been assured that nothing out of the ordinary was showing up. I drove the car back to Paris (about 4 hours in 25/30 degree heat), and it conked out literally in front of the house! I re-checked the relay unit and the solder joint is still intact, along with the 30a fuse. I wasn't getting any noise from the pump, so I checked the 10a fuse and it has indeed blown. I am guessing that this indicates that the fuel pump has had it, and that this caused the scorched relay connector; would I be right? By the way, the fuel filter was changed just before the journey back from the UK.
#23
Posted 16 April 2018 - 12:02 PM
I've just realised that I never closed this subject.
I changed the fuel pump shortly afterwards and that was the problem. No problems at all since, so fingers crossed...
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