5spd, cold air, y-pipe, ACT clutch
I think it may be normal or caused by the cold air, but when im already in 2nd gear cruizing at like 2000rpms not fast or anything and I punch it to the floor, my car hesistates for a split second and then goes...the car doesnt bog down or anything, it just chills for a split second and then goes foward...It doesnt do it at like 3K or any other rpm range...The fuel filter is new, the TB was cleaned 10K ago and I dont know the milage on the plugs...what do you think ??

 

...I have the automagic...It does feel like some type of strange "air pressure/vacum" drop/delay...then the Burst of power come on. It must have something to do with the Air intake presseure and the flow out through the Ypipe...I never really noticed it until about 2 months after the Ypipe. But when I put on my HKS METALFLOW filter..there is NO Delay...just the power rush/burst. hmmmm

 

the thing is, it used to do it bad in first before I got the clutch, and there is no way that thats right at all...after the clutch it doesnt do it at all in first...Ill have to take my Cold Air apart and clean the filter on Tue...

-matt

 

Matt,

I'm experiencing the same thing, where when I gas it, the engine revs up a little, then drops in revs, then catches and lunges. I've posted about this, and asked a few mechanics, and it's been suggested that maybe my clutch is slipping.

Hope not, for both our cases, as this is an expensive proposition. How old is your car, or rather, how new is your clutch?

Also, it's not when I'm pressing the clutch pedal, it's afterwards, in gear, when driving.

Mike

 

your throttle body might be really dirty and gunky

 

it could be your knock sensor too..check your ECU..The knock sensor might be retarding your timing...check that alot of people including me have had this problem...hope this helps

 

But is this a simple process? What's the solution, if it is the knock sensor?
THanks,
Mike

 

Sounds like knock sensor to me, it must be replaced, not a cheap part, or a fun job, but a lot of us are dealing with it right now. Check this out...

http://www.skippynet.com/maxima/knocksensor.htm

Try a search on knock sensor, I am sure you will find all kinds of good stuff...

 

you gotta replace it..its not the hardest job, you can do it yourself and save the labor money....they usually go for about 130-200 dollars...so search around for the best price.

 

I'm experiencing the same problem. If I nail it around 3500 rpm the tach jumps, but I don't accelerate. Now, since I'm in gear (clutch fully engaged) when this happens, this leads me to believe that it is the clutch slipping.

If you're in gear, and your engine rpm seem too high/low for your speed... It's a pretty good sign that the clutch is slipping at that point.

-Sryth...
__________________________________________________ ____________________________
'98 SE 5spd, Pebble Beige, PRCAI
Pacesetter STS, Stillen Y, Stillen FSTB and ACT Clutch on the way!