Are you sure this is an s2000? looks unfamiliar, can you tell me where it's about under the hood? looks like below the throttle body but im not sure, thanks for the picture!

 

Haha! Yes, I'm sure it's an S2000 engine!

It's on the intake manifold, towards the rear of the car, near the firewall. In the previous picture they had removed a coolant fixture on the intake manifold so you could see it.

In this picture it is directly under the gold/copper coolant fixture in the middle of the picture. This is the peice that was removed in the prior picture so you could see the sensor better.

 

right, thanks man! i found it, i'll take it to the mech for an oil change next week and if this is cheap i'll buy one from honda to see, another thing, i think, the problem happens less when there's less oil in the car, what might that show/mean?

 

Did it again today, i realised after driving in highway for like 15 mins than when i'm back to city traffic, it's ok for a while like 10 mins , FYI. Might help finding the problem?

 

think you might be low on vtec fluid.

 

Does the s2k have a crank sensor? MY guess is that it might be that.

 

I heard about the Knock sensor, i was told that might be it.

Knock Sensor, is it external? where is it located?
I'll get a CEL but if i find it i can disconnect it and see if it's the problem right?
PS if i disconnect the Coolant temp. sensor , just to drive and see if it's the one making the problem, would i damage anything?

 

It is not the knock sensor.

Have you replaced the gasket around the TB?

Sounds like a air leak.

 

Thanks, makes sense, but
if it was an air leak, wouldn't it happen all the time, i mean the problem happens after the engine heats up

 

So what happened when you checked out the temp sensor ??