REvan

scenario: traffic under very light throttle at low RPM's (1k-2k)

When the traffic moves a little and i increase the throttle the car basically misses (I increase the throttle but there is a delayed response) then it starts bucking. I have to push the clutch in and reengage. under normal driving where i am using more throttle this does not happen. seemed worse than ever yesterday in 85-90 degree weather and lots of stop and go traffic.

I've checked all hoses and vacuum lines and all is stock other than the K&N intake kit. I'm thinking maybe it sucks too much hot air when stopped with no air movement under the hood.

Any advice, experiences? If unrelated to k&n i will take to Honda, but I don't want to do that unless i am 100% sure it isn't.

mwilly00

I've got the same problem with a new AEM V2 intake. I can't figure it out.

mic_crispy

its not a problem with the intake. most s2k's do this. the new 06 s2k's with DBW have this fixed...

snakeeater

No CEL? It sounds like heat soak in the air tract. Check your IAT (intake air temp) during these conditions. There is a temp sensor that sends this signal to the ECU. If its not too high, then you might want to have a competent mechanic or dealer check it out.

Spec_Ops2087

Almost all pre 06s will do this. You shouldn't be driving it at 1-2k rpm really anyway even in traffic...use the clutch. Mine will do this if I'm not paying attention and it sinks that low, I give it some gas, and it "bucks" until it gets in the higher RPM.

Not intake related

xviper

You have just stated the solution to your situation. This is not a fault of the car. Due to the nature of this car's powertrain, in certain conditions, you are getting very close to lugging the engine. The ECU is trying rationalize between idling and not killing and trying to increase rpm in a circumstance where the engine simply doesn't have enough torque to move a 3000 lb car smoothly into an accelerative state. Adjust you driving technique and learn to sense the impending "bucking". This have been around since the first day the S has been around.

REvan

Guess this is good news, at least nothing is wrong...

Seems like 1500 - 2000 rpm would be high enough to slowly accelerate through traffic. i hate slipping the clutch constantly, thats not good either.

so how do i check the air inlet temp? do i have to pull data from the ecu? It was definetely worse yesterday, so I think it has some temperature sensitivity.

HybridHatch88

I have the problem with my V2, but never had it with my FIPK.

slalom44

The throttle is very sensitive. You can prevent this problem by cramming your right foot against the carpet to the right of the accelerator pedal, acting as a friction pad. This way, the momentum of your leg won't get transferred to the pedal. You don't even realize you're doing this, so stabilizing your foot prevents this bucking.

carbonell

I've had this since day 1. There's peace of mind that I'm not the only one but damn sometimes it's really annoying.