car feels a little sluggish.

Old 08-28-2012, 11:17 AM
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car feels a little sluggish.

i did a search and couldnt find what i was looking for.

I have a MY08 with about 24k miles. The car feels a little sluggish I will try to explain the feeling as best I can. When I am at a traffic light the car runs and idles fine, when i go into first gear and let the clutch out to get rolling that is fine, but when i am in 1st gear at low rpm's (around 2k) and stomp on it, the car feels very sluggish and when I get to about 3.5k i feel a little burst in power kinda like when vtec engages at 6.5k. its almost like I have two vtec engagements it is very strange. and rarely at traffic lights coming to a stop the motor will bog a little bit then level off at around a 1k idle. It never stalls though.

I know it sounds weird and I tried to explain it the best I could.

Is this normal? What is the problem?
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Old 08-28-2012, 11:41 AM
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Sounds like something with your clutch. Bleed and replace the fluid. If that doesn't fix it, your clutch could be slipping. With only 24k and it being an AP2 its unlikely, however still possible.
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Old 08-28-2012, 01:07 PM
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Sounds like you're bogging the engine. I've done that like crossing a street and there is oncoming traffic. I stick my foot into it and I'm like "****, I'm gonna get T-boned!" Just rev it up more and let the clutch slide a little more then stomp on it when the clutch is fully engaged.
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Old 08-28-2012, 01:33 PM
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I think you're describing the engine not having any torque at lower rpm which is a characteristic of the car. I know what you mean about the burst of power at 3500, my ap1 does the same at 3k. I think it's the ecm's fuel and timing map changing. The best advise IMO is to drive above 3k and if you want to launch from a stop you'll really have to work for it and stress the drivetrain.
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Old 08-28-2012, 01:54 PM
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Has the car done this since you had it? I see you're in Florida Kyle. Might be heatsoak...
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Old 08-28-2012, 03:19 PM
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you are not driving a high displacement v8 dude. it's normal. rev it.
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Old 08-28-2012, 04:00 PM
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+1 for the two above.
Heat soak and rev that sucker!
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Old 08-28-2012, 07:45 PM
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Something's wrong

Originally Posted by Kyle Andrew View Post
i did a search and couldnt find what i was looking for.

I have a MY08 with about 24k miles. The car feels a little sluggish I will try to explain the feeling as best I can. When I am at a traffic light the car runs and idles fine, when i go into first gear and let the clutch out to get rolling that is fine, but when i am in 1st gear at low rpm's (around 2k) and stomp on it, the car feels very sluggish and when I get to about 3.5k i feel a little burst in power kinda like when vtec engages at 6.5k. its almost like I have two vtec engagements it is very strange. and rarely at traffic lights coming to a stop the motor will bog a little bit then level off at around a 1k idle. It never stalls though.

I know it sounds weird and I tried to explain it the best I could.

Is this normal? What is the problem?
I don't know what's wrong but it shouldn't do that. Might be a fuel feed problem. There shouldn't be anything like VTEC at 3500 rpms. Sometimes I get a little lurching when starting out but it seems clutch related and is inconsistent, i.e. doesn't do it all the time.
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Old 08-29-2012, 10:08 AM
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When I take off granny-like and then stomp it, that's what happens to mine. If I'm more aggressive with the take-off, it's not a problem.
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Old 08-29-2012, 10:52 AM
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Heat soak and ap2's have the clutch delay valve. How is your air filter looking?
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Old 08-29-2012, 10:58 AM
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Im pretty sure its not the clutch slipping because I know exactly how that feels. My dads 07 shelby gt500 had a bad clutch that needed to be replaced. I am just getting a weird feeling with the car I tried to describe it the best I could. there is like a little lurch around the 3-4k rpm mark that is hard to describe. I'll take it to get the clutch fluid bled and replaced. Could it really just be something with the ecu? I mean I dont think im lugging it just cruising around. like ill be cruising around at around 2-3k and it seems to have no problems, but then if im in second gear and stomp on it at like 2.5k rpm there is some hesitiation, then the car around 3-4k rpm seems to regain what seems to be normal power all the way up to 6.5k then vtec kicks and the car takes off...

what exactly is the clutch delay valve and what does it do? I tried to search for that and I don't really understand the point. could this be what i am feeling?
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Old 08-29-2012, 11:29 AM
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Old 08-29-2012, 11:48 AM
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yea I read that when I searched. So could it be the clutch delay valve? I called honda and they said if there is no check engine light that I have to leave the car with them so they can do a full diagnostic and its costs $98. dont want to pay for that. Should I try an ecu reset and clean the map sensor?
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Old 08-29-2012, 12:00 PM
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No, cleaning a map sensor wont do anything. You could reset the ECU but there is a 99% chance that wont do anything. What might help is bleeding the clutch fluid lol.

Outside of clutch related problems, all I could think of is a spark plug for fuel injector.
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Old 08-29-2012, 12:26 PM
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'08 with 24k miles...you could be experiencing normal vehicle function. Is the vehicle still under warranty? The powertrain warranty (engine/transmission) is 5 yrs or 60k miles) What servicing has been done on the vehicle? You could take it to a Honda dealer and see if a service advisor will drive it with you. They may be willing to do that if you have a relationship at that dealership.
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Old 08-29-2012, 01:16 PM
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ok. I will call the dealer back and see what they can do. I really do not want to pay for this as I still have powertrain warranty and I bought an extended warranty to 100k miles (I thought it was worth it)
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Old 08-29-2012, 01:42 PM
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Have you recently changed your fuel source? Are you putting at least 91 octane fuel in the car? Try Chevron or Shell gasoline for at least one full tankful and see it it helps.
Also try blipping the throttle just before you let the clutch out, it might help with the lag issue.
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Old 08-29-2012, 06:43 PM
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I always use mobil 93 octane.
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Old 08-29-2012, 10:44 PM
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Originally Posted by Kyle Andrew View Post
Could it really just be something with the ecu? I mean I dont think im lugging it just cruising around. like ill be cruising around at around 2-3k and it seems to have no problems, but then if im in second gear and stomp on it at like 2.5k rpm there is some hesitiation, then the car around 3-4k rpm seems to regain what seems to be normal power all the way up to 6.5k then vtec kicks and the car takes off...
i honestly think your normal cruising rpm of 2-3k is way too low. if you stomp on it at 2.5k of course there's gonna be a delay that's way too low for a s2k. both of my '08 s2k's don't take off at 2.5k rpm, at 4k rpm though it's totally different. you've got 8200 rpm . . . . use 'em!
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Old 08-29-2012, 11:59 PM
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You need to learn to drive the car. It doesn't drive like the
average mass produced car. The S was built by racing enthusiast
engineers. The harder you drive it, the better it will run. The flywheel
is lighter than most cars, among other things. practice makes perfect.
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Old 08-30-2012, 07:42 AM
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this is all you need to know. your car is making <100hp under 4,000rpm
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Old 08-30-2012, 08:55 AM
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I just don't hear clutch in the OP's description...but I am not the sharpest knife in the drawer either...can we eliminate heat soak...does it do as you described in the morning...first thing, or does it only happen after sitting at idle for a while?
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Old 08-30-2012, 04:33 PM
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Keep the RPM above 3K and don't shift below 5K. That's as a DD. If you're driving it hard keep it above 5K and don't shift below 7K. It's that simple.
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Old 08-31-2012, 01:03 AM
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This is probably unlikely since you only have 25k, but try checking your throttle cable. It could be out of spec. The cable should only move about .25" up and down.
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Old 08-31-2012, 11:51 AM
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yea I guess I just need to change my driving style. I kinda figured that nothing would be wrong as the car is so new. Thanks for the help guys. I've never really driven a car like the s2000 before, guess I just have to get used to it.
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Old 08-31-2012, 06:01 PM
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Originally Posted by philiam View Post
You need to learn to drive the car. It doesn't drive like the
average mass produced car. The S was built by racing enthusiast
engineers. The harder you drive it, the better it will run. The flywheel
is lighter than most cars, among other things. practice makes perfect.
^ I agree with everything but the flywheel part. I'm sure he was talking about AP1 though.

If you floor it at 2.5krpm you are going nowhere. I cruse between 2-3krpm aswell but if I need to accelerate then I always downshift 1 or 2 gears depending on how hard I need to get on it.
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Old 08-31-2012, 06:46 PM
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Originally Posted by GookieMonster View Post
This is probably unlikely since you only have 25k, but try checking your throttle cable. It could be out of spec. The cable should only move about .25" up and down.

The '08's don't have a throttle cable. Electronic throttle from '06 to '09.
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Old 08-31-2012, 07:43 PM
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[QUOTE=JDMricist;222487]^ I agree with everything but the flywheel part. I'm sure he was talking about AP1 though.

Haven't driven the AP2, so can't comment on it. The clutch delay
probably makes it less prone to stalling as well.
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Old 09-08-2012, 05:50 AM
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perfect answer from turbo6
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Old 10-22-2012, 07:43 AM
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This may be too late but check you IAC that connects into your catalyc converter. They need replacing ever so often.
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