Anyone ever had problems with Bigas solenoids failing? Car's been running a
bit raggy for a few days lately (rough at idle on gas), but today it cut
down to 3 cylinders on my way home. When I looked into the problem, I found
one of the solenoid valves had broken in to 2 pieces (the bit inside which
moves up and down).

They're high speed solenoids (whatever that means) and they're fitted to my
old Volvo 940. Anyone know where I can get a replacement rail without a
mortgage.

Does it need to be a Bigas rail or will another make do the job - not too
impressed with Bigas to be honest, it's only done 7000 miles since i
installed it 15 months ago.

Many Thanks

Steve