I have a Ap1 s2000 and the steering feel is weird.
I tried to search but can't really find an answer.

My car feels different when I turn left or right.
The steering wheel feel heavier when I turn left and the steering wheel feel lighter when I turn right (I would say normal weighted.)
So turning left feel hard and heavy.
I've already changed 2 EPS ECU and the problem remain the same.

Any ideas?? What's wrong with my car?
Alignment done, tires pressure and everything are fine.

Please help.

 

might be something wrong with your steering rack? when/why did it start happening?

 

Sounds like the rack is bent, IMO.

 

Steering rack.....So the rack is bent?

I forgot to say, after I changed the other S2000 EPS, the car does feel a little better (not as hard) when I turn left. But it is still somewhat harder than the right side.

After a while, the car will just turn left (with a hard feeling again) Does the EPS learn too?

Does the steering rack give out signal to the EPS?

 

i had a bent rack before but it was because some one hit my front wheel. it's probably not going to bend on its own. the wheel was a bit hard to turn but the other symptom was that the wheel did not guide itself back to center when i took my hands off, it would just stay to the left or right. here is the thread: https://www.s2ki.com/s2000/topic/926...enter-anymore/

and, yes, the rack and the EPS ECU talk to each other. is your EPS light on? a bent rack wouldn't cause the light to come on. if it's on you'll need to read the code to find out what's wrong. the EPS doesn't learn per say. you can teach it where center is if need be. is the steering wheel straight when the wheels are straight?

 

My EPS light is NOT on, but my wheel are straight when my steering wheel straight.
Im not 100% sure if my wheel will go back to center if I take my hands off, but I don't notice this problem. So I guess it will go back to center, and I will double check.

 

the test that revealed the bent rack for me was jacking up the front end so that both wheels were off the ground then turning the steering wheel back and forth. it should turn easily in both directions, if there is resistance anywhere then the rack is damaged.

 

So was it a bent steering rack? Because I am having the same issue now.

 

Soo what was wrong here??

 

Have you got an alignment after the parts were replaced? Tires are not cupped, tread is even