Hey guys... Recently, I've been noticing while I am drivin and I am coming to a stop or when I start my car and it is in park, my RPM goes up and down.. LIke, when it is in Park, the RPM goes above 1, below 1, and just goes back and forth.. And Im not even touchin the pedals.. When I am driving and I am slowing the, the RPM sometimes even goes as low to 0, then shoots back up.. Its real crazy.. Any1 know what the problem is, or what I should do.. Thanx..

 

Might be your TPS (Throttle Position Sensor)

 

thanx for letting me know... ill have some1 take a look at it... Do u know how much it costs to replace something like that?

 

Is the engine speed going up and down with the tach, or does the tach seem to be doing its own thing while engine speed is constant?

 

it seems like the engine speed is fine.. Its like the tach is doin its own thing, and to be honest with you.. I just got home from a party, and my Check engine light is on.. 1st time its ever been on... Now, I gotta find out y..

 

Sure ur not still seein sht cause ur faded......?

 

A symptom of a bad TPS is a hunting idle speed.
Check the codes in your ECU, I bet it's the TPS sensor code.

 

Thanx NJMaX... Im gonna take a look at it right now...

 

what if its hunting for idle and there are no codes???

 

good question... i think i found out the problem.. i think its an o2 sensor