I have an early 99 turbo, pedistal and intake Y pipe. I reached behind the HPOP and felt and it was flat. No rise in th middle. so that tells me I have a 15* pump. But I know my engine oil pressure is low. way low. I do have a leak on the CCV mod i did when I turned the CCV thing on top of the valvecover around backwards. SO I have to fix that oil leak. Thats one of the bigger ones. I have diagnosed my rear main is leaking too most likely. I cannot find a trail down to the back of the engine, but all around the inspection plate on the trans is covered in fresh oil, and so is everything behind it. UGGGGGGHHHHHH!!