Yeah I'm really tempted to go crazy and just redo everything. Just hit 130k so it could use a full set of bushings anyway....

 

My first answer with this problem has always been tires. Switch the front tires left to right (dont worry about the tire rotation direction, this is for testing) I have cured this over 200 times in the industry. Not so much with the S2000, but it is sure possible.

It could also be your eps. I have seen this before, where there is low voltage at the motor, because the torque sensor has lost its positioning.

Perform the torque-sensor-neutral-position re-learn.

 

It happened on my old tires and my new Continentals that went on this spring, but happy to swap fronts, no harm.

Is the relearn the same for 06+ cars, I heard it was not the same? I haven't had any other steering abnormalities from the EPS either.

 

Pulled the EPS fuse and took it out on the highway today, same thing, although maybe slightly better. Going to try swapping wheels tonight as well but its looking like another alignment or I just start throwing bits at the front end.

 

Going to get this back up, I temporarily solved my issue by buying a new Civic Type R so the S has sat for awhile. I did try swapping wheels side to side to no difference, still pulls right. I wanted to raise up the front a bit anyway and took it back to a new alignment shop I haven't used in a few years. Everything looks great on the alignment, specs are right where its always been around this height. Alignment guy has had a couple S2000s and commented that the steering does feel light compared to other S2ks, especially in the center position in motion, didn't drive it enough to see the drift right. I attempted the neutral position relearn a dozen times and only got it do to anything once, every other time the light never goes off initially. I did try and hail mary clean of the torque sensor and notice no difference. I'm thinking its not within the EPS since I did notice the drift when the fuse out but throught I'd try.

Anyone else have any ideas? Did a visual inspection of everything when I raised the front and didn't notice anything.

 

Alignment sheet from yesterday.

 

Your caster is drifting too far. Jack up the front end and inspect the compliance bushings, if they're going bad you'll see it straight away. If they're really bad you'll get a pull towards the lower caster. If the bushings are shot, then your caster will change when the road level changes.

 

I doubt the above.

 

I would be surprised if it were compliance bushings, I replaced those a few years ago, no chance they have more than 25k miles on them.

 

Your driver side caster had to be changed by 2 degrees, that's a lot. The rest of your suspension mostly held its alignment. Maybe I'm wrong, but your alignment sheet says your caster was way off. Your caster shouldn't change at all unless you make big changes to the camber. The only other thing that could cause this is a tweaked knuckle, or bad lower ball joints. If your ball joints are bad enough to cause the car to pull to one side, they'll make a lot of clunking and squeaking noise.