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'90 240 sedan with a very curious problem? 200 1990

Dear KC,

Also, if the shop hasn't yet, check the two ground wires attached to the bolts mounting the fuel rail to the intake manifold. If I stretch my imagination, I might say there was a service bulletin tieing corrosion at the ring terminals and their crimps to 113 codes. But this last bit could be false memory. The one thicker wire carries most of the current return for the fuel injection system, while the other is a low-current reference ground for the sensors.

However a shop versed in early 90's volvos probably did this early on.

Best-
--
Art Benstein near Baltimore






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