Rpm's Goes Up And Down Please Help!!!

[LILT23]

can someone please tell me how to stop my car from the RPM'S racing between 1,000 & 3,000 it like goes down to 1 and races back to 3 and goes back and forth the whole time out of gear it's a 5 spd 2.2 stock motor with turn down cold air intake please reply and tell me how to stop it from doing that cause it is a pain and it's burning all my gas.

[Igovert500]

Are you getting any check engine lights?

[ajdragonf]

There's a small air tube/valve that runs to your stock air intake that needs to be plugged in order for the engine to get the proper air mixture. Make sure you check that tube that goes to the throttle body. I had this problem when I put in my first intake. Hope it helps. To test and make sure this is the problem, put your car in idle and plug the hose with your finger, it should drop the RPM's considerably. Release the finger and it will jump up again. It normally runs at around 700 RPM's when normal. Cool?

[thepig333]

I have that same problem. I have been told that there is a vaccume leak somewhere. Use a can of ether and spray the vaccume hoses and where they connect. When the car drops in rpms, you have found your leak. Replace hose. Hope that works

[LILT23]

i ran the cars computer for codes it is coming up code 4 and code 4 is crank angle sencor where can i find that thing at? anyone got a clue?

[cooneyb81]

the crank angle sensor is inside the distributor, you would more than likly have to get it from the dealer.