I am helping a friend correct a stalling problem on her 850.

The camshaft position sensor has been replaced after diagnostic indicated a fault. However, the problem has recurred.

After searching this forum I have decided the next steps will be to replace the fuel filter and, if necessary, both fuel pump relays.

I can find the fuel filter on fcpgroton, but can't seem to find the relays there. I don't know the part numbers.

Any advice on which relay to replace first? I understand there's one inside by the fuses and one under a cowling above the radiator.

Thanks.