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Looks perfect. It's from a gen1 ser1 legacy. I will dig up the wiring diagram and let you know.

I have an entire post dedicated to HLA noise. Find it and read it. First change the oil. 1. Reseal the oil pump. Use Subaru seals and clean and inspect all sealing surfaces. 2. Replace the oil pump. They’re not available new so you’ve got to work to find one. Those two steps have fixed every one I’ve seen over the last 20 years. Friend was posting about his years ago. He resealed it twice and still noisy. Everyone was giving advice on cleaning, different oils, additives, and redoing the engine/HLAs. Shipped a pump without telling him and it’s been years with no ticking. It’s real simple if you ignore the typical guessing and conjectures. Reseal. Replace. HLAs. Done. If it’s got 200,000+ miles, poor oil change history, and/or heavy use then HLA or HLA seat wear is more likely. Sometimes different oil helps, or seems to, but it’s probably a band aid for some other issue and it usually doesn’t totally go away or comes back. Ive seen two seized HLAs but those were run with blown headgaskets and multiple times running hot for almost a year. If the engine has seen abuse like that pull the HLAs and see if any won’t compress in a c-clamp or vice. Seized ones will be galled internally and won’t move.

Ah, by shielding you mean the plastic conduit stuff. I am talking about the metal shielding on the sensor wiring - it’s under a grey wrap/tube. Keep that stuff there, do not remove! No worries about messaging Cheers Bennie