S2000 Under The Hood S2000 Technical and Mechanical discussions.

did i hit a rev limiter or what???

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Old 10-01-2017, 02:33 PM
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Default did i hit a rev limiter or what???

running on an autox course, i picked up a cone and kept it under the car while finishing the course.....


hard, sliding wide left turn i was full throttle and as i exited i straightened out, but something wierd happened, @ about 6000 rpms it seemes as if i hit a rev limiter, or something... the cone was still under there...


is was a total loss of power, kind-of a "buzz" noise, as if all the plugs had quit at once, just for a second... then it went back to normal... couldnt re create the situation.


do you think the cone was confusing a sensor or something??? it was under the engine and eventually exited out the back


any help is appreciated
Old 10-01-2017, 02:57 PM
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Was the car fully warmed up?

Does it have enough oil?
Old 10-01-2017, 03:10 PM
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Oil level and has the map sensor ever been replaced or connector resecured?
Old 10-01-2017, 03:25 PM
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oil was recently changed, it sits about 1/2 to 3/4 up the XXXXX's <200miles on new oil 5w30


the map sensor, i dont know... but ive never messed with it..
Old 10-01-2017, 03:52 PM
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Originally Posted by yamaha6611
oil was recently changed, it sits about 1/2 to 3/4 up the XXXXX's <200miles on new oil 5w30


the map sensor, i dont know... but ive never messed with it..
https://www.s2ki.com/forums/s2000-service-bulletins-tsb-145/intermittent-hesitation-during-hard-acceleration-275228/

I would try the simple zip tie on it first. I replaced my map sensor just for the heck of it once I reached 140k.



Old 10-01-2017, 03:52 PM
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Not sure if you have an AP1 or AP2 -- on an AP1, the car needs to be at 3 bars (fully warmed up) or there's a ~6000 rpm cut-off to prevent stupidity.
Old 10-01-2017, 04:08 PM
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Originally Posted by HarryD
Not sure if you have an AP1 or AP2 -- on an AP1, the car needs to be at 3 bars (fully warmed up) or there's a ~6000 rpm cut-off to prevent stupidity.
Same for both.
Old 10-01-2017, 05:00 PM
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Is it an '06+? Could it have been VSA kicking in? That cuts power, and applies braking to selected wheel(s) using ABS, and it has a ort of crunchy feel when it engages.

Since you're doing autocross, it seems silly to suggest you wouldn't be very familiar with VSA if your car has it. But it seems to fit the scenario.
Old 10-01-2017, 05:04 PM
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Originally Posted by HarryD
Not sure if you have an AP1 or AP2 -- on an AP1, the car needs to be at 3 bars (fully warmed up) or there's a ~6000 rpm cut-off to prevent stupidity.


oh it was def. warm, it was my 3rd run and i just came off a 9,000rpm corner slide that ate the cone, lol



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Last edited by yamaha6611; 10-01-2017 at 05:06 PM.
Old 10-01-2017, 06:12 PM
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Any video of it happening? And how long was the left?


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