Quote:
Originally Posted by cogs
Another few hours spent on the V40. I did a compression test, just in case, and everything seems fine, all four cylinders gave 170 reading.
As to the starting problem I think I found it.It seems there is no voltage getting to the MAF sensor. Reading between the thicker red power in wire and earth is a big fat zero. I double checked the fuses and changed the relay just in case and popped the bottom of the engine fuse box but nothing looks wrong.
I guess it might be a problem with a wire in the loom or the ecu .
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That is the best clue you have given so far.. The power feed wires in the loom under the radiator going from one side to the other were rotting due to water ingress , this was over 10 years ago so yours could be in a bad state. pull the loom out strip the tape off and you might see swollen parts of the red insulation. Inside will be blue/white copper corrosion dust !