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s2000 ap1 first gear serge ?

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Old Mar 12, 2011 | 01:58 PM
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Default s2000 ap1 first gear serge ?

ok guys the cars a 2001 ap1 and if your at a stop light and getting rdy to pop the car into 1st gear you can feel a surge or kinda like the rpm will kick and the car kicks forward a tiney little bit.. does anyone know if this is normal? everything on the car is stock accept the cat and header.. has 50k miles on it.. thanks in advance guys !
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Old Mar 12, 2011 | 02:16 PM
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Default Re: s2000 ap1 first gear serge ?

sounds like an IAC...dont know about the jumping forward thing though, thats a little weird if the car's not in gear
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Old Mar 12, 2011 | 03:24 PM
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Default Re: s2000 ap1 first gear serge ?

it happens while putting it into 1st gear
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Old Mar 12, 2011 | 03:52 PM
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Default Re: s2000 ap1 first gear serge ?

zip tie the map sensor to the tb, it will reduce the severity of it, but that dip in RPM's when coming to a stop will still persist. if that's not it, well you probably did the repair/fix wrong
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Old Mar 13, 2011 | 12:21 AM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by dagle
zip tie the map sensor to the tb, it will reduce the severity of it, but that dip in RPM's when coming to a stop will still persist. if that's not it, well you probably did the repair/fix wrong
i dont think im explaining this correct to u guys ... ok lets say im in neutral at a stop light and i clutch in and put the car into 1st gear.. as im putting it into gear the tranny feels like its under load as im putting it into gear and jolts the car forward a tiney bit ... and you can also c it in the rpm going up a few lines... does this make sense ?
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Old Mar 13, 2011 | 07:08 AM
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Default Re: s2000 ap1 first gear serge ?

im sorry man, ive never heard of our cars doing anything like that...without actually seeing it, im not sure exactly whats going on
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Old Mar 13, 2011 | 08:25 AM
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Default Re: s2000 ap1 first gear serge ?

ok! im going to bleed the clutch and c if it helps any ! thanks !
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Old Mar 18, 2011 | 05:24 PM
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Default Re: s2000 ap1 first gear serge ?

its normal for ap1
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Old Mar 18, 2011 | 05:33 PM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by loosh
its normal for ap1

and you know this how? my car has never done it and none of my friends have ever done it....i guess we all got the abnormal AP1's, right?
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Old Mar 19, 2011 | 08:09 AM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by RED_90TEG
i dont think im explaining this correct to u guys ... ok lets say im in neutral at a stop light and i clutch in and put the car into 1st gear.. as im putting it into gear the tranny feels like its under load as im putting it into gear and jolts the car forward a tiney bit ... and you can also c it in the rpm going up a few lines... does this make sense ?
I have felt it 2 on my MY2007 but it's very slight and pretty much imperceptible which may account 4 why others S2K'rs haven't felt it. I haven't checked the RPM's surge but will do next time.

I feel it's normal and does not worry me. I'd say it's the synchros doing their work but I'm no mechanic.

FWIW, I get the same feeling from my lowly 2001 Jetta IV.

PD: 2 "It Wasn't Me", 0 posts and 10 days 2 go
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Old Mar 19, 2011 | 08:19 AM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by okalf
PD: 2 "It Wasn't Me", 0 posts and 10 days 2 go

whats the purpose of doing this?
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Old Mar 19, 2011 | 09:30 AM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by Boots
whats the purpose of doing this?
I'm a newb here and eager to get out of trial user status so I can have full access to the board. So the night I joined I posted 3 quality comments and 2 shitty ones, something along the lines of "Just another post 2 get out of trial status" It was late and the muse ran out. Pretty much instantaneously I received a PM from It Wasn't Me deleting my 4th & 5th posts outright and telling me to do better in the 2 weeks left of trial time.

I immediately replied that he/she was right, so now I'm just PDing 2 let him/her know I take my comments seriously (this is my 6th) and counting the days towards full access, so ...

PD: 2 "It Wasn't me", 0 posts left & 11 days 2 go.

Last edited by okalf; Mar 19, 2011 at 10:59 AM.
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Old Mar 20, 2011 | 11:03 AM
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Default Re: s2000 ap1 first gear serge ?

mine does it, my friends does it, his friends does it, and its also in the common problems thread on s2ki

Originally Posted by Boots
and you know this how? my car has never done it and none of my friends have ever done it....i guess we all got the abnormal AP1's, right?
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Old Mar 20, 2011 | 11:18 AM
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Default Re: s2000 ap1 first gear serge ?

i guess its normal..
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Old Mar 20, 2011 | 12:56 PM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by RED_90TEG
i guess its normal..

id say no...i got to thinking though, whats the highest octane you guys in cali get? its 91, right? just throwing ideas out there, but ive never experienced it and neither has anyone i know, but, with that said we have 93 here, it might be the reason because i cant think of anything else without actually seeing exactly what its doing.....just a thought
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Old Mar 20, 2011 | 02:03 PM
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Default Re: s2000 ap1 first gear serge ?

maybe ill take a video of it and try to post it up...
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Old Mar 20, 2011 | 03:47 PM
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Default Re: s2000 ap1 first gear serge ?

i don't get how the car surges forward, when it's not in gear. It sounds like your clutch isn't fully depressing. I think sometimes the revs can wobble a bit when selecting first gear, but the car can only move if it's in gear. Clutch out.
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Old Mar 20, 2011 | 04:02 PM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by bigmacnfries
i don't get how the car surges forward, when it's not in gear. It sounds like your clutch isn't fully depressing. I think sometimes the revs can wobble a bit when selecting first gear, but the car can only move if it's in gear. Clutch out.

my thoughts exactly
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Old Mar 20, 2011 | 06:03 PM
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Default Re: s2000 ap1 first gear serge ?

i drove my em1 for 130 k miles with the stock clutch how can this things clutch be going out at 50k? thats horrible
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Old Mar 20, 2011 | 06:09 PM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by RED_90TEG
i drove my em1 for 130 k miles with the stock clutch how can this things clutch be going out at 50k? thats horrible

all depends on how the guy drove it before you got it
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Old Mar 20, 2011 | 06:57 PM
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Default Re: s2000 ap1 first gear serge ?

I would look into bleeding your clutch system, and also checking your clutch pedal adjustment, i know what you mean though. Mine did it, sometimes I never press the pedal in quite enough so when you put it into first it would jolt the car, nothing violent but enough to notice it.
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Old Mar 20, 2011 | 10:41 PM
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Default Re: s2000 ap1 first gear serge ?

I know what he's talking about. It's the synchros catching the gear up to speed so it will slide into place.

Here's what I do in my car to counter it.

I typically start to put my car in 3rd, back it out, and then actually engage 3rd gear, then I go straight to 1st to take off. I will stop the notchy feeling going into 1st and also reduce the clunk you hear when engaging 1st.

It takes a little practice, but I can go through the entire 3 step process in under 2 seconds.

Lemme know if I hit the doorbell on the button or not.
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Old Mar 21, 2011 | 11:40 AM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by ntensehonda
I know what he's talking about. It's the synchros catching the gear up to speed so it will slide into place.

Here's what I do in my car to counter it.

I typically start to put my car in 3rd, back it out, and then actually engage 3rd gear, then I go straight to 1st to take off. I will stop the notchy feeling going into 1st and also reduce the clunk you hear when engaging 1st.

It takes a little practice, but I can go through the entire 3 step process in under 2 seconds.

Lemme know if I hit the doorbell on the button or not.
im going to get a s/s clutch line this week and bleed the system with rbf 600.. but i think ur correct with doing the 3rd gear thing to make everything smoother.. btw the car doesnt always do this.. only sometimes.. and i dont feel the clutch slipping at all i can put it into second gear and the rear end comes out... before i get flammed i know its bad to do this because it messes up the second gear syncros but i just had to try it.. lol
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Old Mar 21, 2011 | 11:55 AM
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Default Re: s2000 ap1 first gear serge ?

Originally Posted by RED_90TEG
.. and i dont feel the clutch slipping at all i can put it into second gear and the rear end comes out...
wut?
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Old Mar 21, 2011 | 04:05 PM
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Default Re: s2000 ap1 first gear serge ?

someone in a post up there ^ said maybe the clutch might be going out.. but if i shift into 2nd gear on the throttle the rear end brakes loose.. so i dont think the clutch is going out...
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