Alright, i've done some searching, and I belive that I have a bad IMRC, but would like some opinions.
Here's the deal. About 6 months ago, my car began to act like it was not getting enough fuel when at higher RPMS and below a 1/4 tank. This initially led me to belive the fuel pump. However the problem has now migrated to where if I have 1/2 (and sometimes 3/4) tank or less it's causing the same issue, feels like it's not getting enough gas over 4k RPM. It only does it when under load, ie. acceleration, not when I just rev the engine.
Occasionally I'll get a really high pitched whine (much like alternator noise, except it's comming from the engine). It's not the typical moosing noise, I've had that fixed.
The CEL came on a few weeks ago, so I need to get that checked, and it may tell me more. Would a fuel pump/IMRC throw the CEL?
What's your opinion, IMRC, Fuel Pump, Fuel Filter? Where should I start as to not cost an arm and a leg.
The car has about 90,000 miles on it, the engine was replaced about 30,000 miles ago with a complete tune up done at that time.