question

So recently received error fuel pressure sensor malfunction, can remember code but replaced sensor and it resolved it. Oddly enough when I replaced fuel pressure sensor it started making a whine like I was low on power steering fluid. Sound increases with RPMs. I Confirmed all fluids were not...

My genpu has a rough idle where it makes a small sputter every few seconds, I also get a p0300 random misfire code that comes on every few cold starts. I have done everything I can think of to fix this issue. I've changed the spark plugs, cleaned the valves, rebuilt the HPFP, changed the o2...