RedSunS2K

On certain days my S2K feels kind of sluggish. I'm not sure how to explain but I'll try my best.

Here goes...

Once in a while the ride will be smooth. Throttle feels very responsive. It will feel like it has a little more torque as well with buttery smooth shifting. Feels great when launching.

Other days it just feels bogged down, less responsive and feels like I need to put more effort into shifting. Also launching feels like a total total let down.

What I've done so far:

Changed Oil and Oil Filter.
Changed spark plugs to OEM Laser Platinums.
Changed OEM air filter to K&N drop in.
Changed Transmission fluids.
Differential fluid.
Filled my tires to manufactures recommendation.
Re-greased shifter with UREA.
Never let my fuel tank never drops below half.

I'm changing my spark plug seals and valve cover gasket this weekend. Not sure if thats a problem as I noticed some oil on my spark plugs when I was changing them.


What else is there?

nofearofdanger

Heat soak?

nofearofdanger

The S is ultra responsive to the temperature outside. On a hot day it will run noticeably slower than a cold day.

RedSunS2K

I ruled this out only because I brought the in March and it was happening then. It was still pretty chilly out and snowing where I live.

deepbluejh

I can also confirm this. My car feel significantly stronger when it's cool outside.

rob-2

Upgrade to Ap2

nofearofdanger

What

nofearofdanger

Have you tried a 'Map Whack?', seems to be the most prevalent culprit for intermittent engine behaviours.

nofearofdanger

The map sensor that is.

RedSunS2K

Didn't know what you meant by map whack. I googled it and got this DIY.

http://forums.s2kca.com/showthread.php?t=19607

So basically I just unplug the harness and tap the sensor with a blunt object?

Give it a try tonight.