FRS steering wheel vibration.

[humfrz]

Originally Posted by snk828

2011 production model, the engine vibrates too.

hmmmm......I haven't heard of a "2011" FR-S.

When was your car built .. ??


humfrz

[snk828]

Originally Posted by humfrz

How is the engine running, as far as putting out power .. ??

Any codes thrown .... ??

Back-in-the-day ....... I would have suspected a fouled spark plug.


humfrz

It's running good, engine has some vibration but nothing major. It doesn't feel like power lost anything like that

[snk828]

Originally Posted by Tcoat

Is it completely stock?

Not stock, header , exhaust and OFT tuned

[snk828]

Originally Posted by strat61caster

Could be fine, OP is it your first sports car?

Not the first sports car , my first car is 91 MR2 and then a Honda Del sol. I also drove couple of my friend's BRZ and Frs. They don't have that steering wheel vibrations .

[snk828]

Originally Posted by Sarlacc

I would take it in to a dealer ASAP!

I always thought they didn't start production until 2012.
Does your VIN have a B as the 10th character? as in JF1ZxxxxxBxxxxxxx
If it's a C it means it was assembled in 2012.

I have header and tuned , dealer won't take care of my car anymore unless I take it off and reflash back to stock tune.

[Tcoat]

Originally Posted by snk828

Not stock, header , exhaust and OFT tuned

Has it always done it or has it changed somehow? Could be a result of the header and tune.

[humfrz]

Originally Posted by snk828

Not stock, header , exhaust and OFT tuned

Well, @Tcoat ferrets out the possible cause.

I'd suggest you check all of the exhaust parts to see if any are rubbing (or even close) to any part, that is even remotely connected to any part of the steering mechanism.

If that don't work, as Tcoat suggested, check the tune to see if you can smooth out the engine.


humfrz

[snk828]

Originally Posted by humfrz

Well, @Tcoat ferrets out the possible cause.

I'd suggest you check all of the exhaust parts to see if any are rubbing (or even close) to any part, that is even remotely connected to any part of the steering mechanism.

If that don't work, as Tcoat suggested, check the tune to see if you can smooth out the engine.


humfrz

I just drive my car for 15 minutes, I pay extra attention to the vibration from the steering wheel , actually I can feel my whole car is shacking. Now, I think the whole vibration is come from the engine, I will change my tune back to stock and get a feel from it again. I hope it's just the tune , then I can get a better tune to fix that. I also realize The car shacks a lot when I turn on the AC since the RPM will drop down and come back up to 700. Its more obvious in the morning when its hot around 90F outside,it has less vibration at night when it's cold.

[Sarlacc]

Originally Posted by snk828

I just drive my car for 15 minutes, I pay extra attention to the vibration from the steering wheel , actually I can feel my whole car is shacking. Now, I think the whole vibration is come from the engine, I will change my tune back to stock and get a feel from it again. I hope it's just the tune , then I can get a better tune to fix that. I also realize The car shacks a lot when I turn on the AC since the RPM will drop down and come back up to 700. Its more obvious in the morning when its hot around 90F outside,it has less vibration at night when it's cold.

Does it shake when driving, or only when idling and/or standing still as you said in your first post?

[snk828]

Originally Posted by Sarlacc

Does it shake when driving, or only when idling and/or standing still as you said in your first post?

Only shake when idling.

[Sarlacc]

Originally Posted by snk828

Only shake when idling.

Ok. If you stand in front of it with the hood open, do you see the engine shake?

[snk828]

Originally Posted by Sarlacc

Ok. If you stand in front of it with the hood open, do you see the engine shake?

Yes , it does shake when the AC kicks in . I think that's normal for AC on.

[Tcoat]

Originally Posted by snk828

Yes , it does shake when the AC kicks in . I think that's normal for AC on.

May be as simple as bringing the idle up a couple of hundred RPM at idle. If it is shaking more when the AC comes on it is struggling to keep running.

[Sarlacc]

Originally Posted by Tcoat

May be as simple as bringing the idle up a couple of hundred RPM at idle. If it is shaking more when the AC comes on it is struggling to keep running.

Mine twitches a little sometimes when the AC kicks in at idle. The idle RPM fluctuates a little, too.
I seem to remember old threads about it; consensus was that it's normal, I think?

However, my old Legacy (with a similar Subaru flat 4 in it) got it worse.
It flashed dash lights and even stalled when the AC kicked in at idle.
The dealer fixed it by tickling the throttle body and resetting the ECU.