Easing Off Pedal Equals More Power?

[OK-944]

Something I’ve noticed particularly while accelerating (in “spirited” mode) on uphill climbs - that when I really get on the gas pedal (but never mashing it to the floor), the car feels like its keeping just a bit of something back. But if I then let off the pedal very slightly…I get a smooth boost of power.

Obviously, I’d like this boost to occur in immediate response to direct pedal pressure.

I don’t notice this tendency so much while driving on the flats…but mostly on hills. Nor do I notice this while driving in a “normal” (non spirited) manner.

Could this be a timing issue? Vacuum issue? Hmmm….

[Rasta Monsta]

You might be running lean. Short of installing a wideband O2 sensor, you can check fuel pressure and flow rate, and smoke the intake for leaks. You could also do a test run with the TPS disconnected to see if the computer is doing something wonky at WOT.

How is your AFM?

[16again2009]

I had this happen on a Chrysler that I once owned. It was the spark plug wires.