u/Court-Individual

25 long term fuel trim both banks no other codes drops to 14 when revving the engine. smoke tested the intake no leaks, pressure tested the exhaust no bubbles.blocked Evap, pcv and brake booster vacuum ports no change. I changed the brake booster with A-line premium because of the whooshing sound and brake sticking and judder on pedal release. I still have whooshing which I'm told might be normal but the gasket for the master cylinder I believe needs to be replaced or reseated and change the grommets. I'm curious if the Master cylinder is failing or the booster inline check valve might be an issue. still haven't checked the calipers/brake hoses cause I'm on my own. it appears to hold vacuum but idle appears to be affected when I press on the brake. fuel pressures appear to lag behind desired and rail pressure never matches when revved to 3800rpm. high pressure fuel pump sounds like it's rattling and not ticking like I'm told is normal. I think it's one of the fuel pumps/both or possibly a control valve/sensor. Any help would be greatly appreciated working on my mom's car! I also replaced front pre cat wideband O2 sensor it was blackened the next time I pulled it not sure if that indicates false lean or just Turbo GDI normal lol