Originally Posted by cozmeister

By your list, the only things that you haven't been changed are the TPS, MAP sensor, ignition amp, and air temp sensor. If the crank pulley teeth were damaged, it probably wouldn't run at all, never mind achieve 4000rpm...

But the gap for the CPS might be something to check. Should be 0.6 - 1.0mm between each tooth and the sensor.

A faulty TPS will cut the fuel off when the throttle's open, and create the "brick wall" effect. You'll find it difficult to test it with a meter with the engine running, and while you're driving it.

You really need proper diagnostic equipment like a Pectel monitor to identify intermittent faults like this in real time, or you'll be "chasing ghosts" forever! This will let you (or a passenger!) see in realtime which sensor outputs are wrong.

Also bear in mind that just because you replaced something, it doesn't mean part you replaced was good - you may have replaced a duff part with another duff part inadvertently.