Engine rev problem

[Altima4AT]

I've been noticing lately that when I step on the gas and the revs go up...I let go and it usually comes back down fast...but now the revs stay up for a second when I let go of the gas then comes down

[psi101101]

do you warm up the engine before you start revving it up really high??

[Altima4AT]

yea I do, and I'm not really reving it high...only to about 3000 rpm

[Zerep]

did you change your gas type cause i believe that the computer trying to achieve a clean burn if it would just drop down then gas would go into you cat

[Altima4AT]

I usually just use regular unleaded...Been using it for a while...dont think that's it

[dangeris]

I usually just use regular unleaded...Been using it for a while...dont think that's it

How do you know that's not it? Has this been occurring on the same tank of gas? There could be a dozen reasons why your car is doing this. Maybe the gas station got a bad batch of gas and you're running it. have you tried using a different brand and grade of gas?

[Beak]

time to seafoam!!