My d16z6 idles really low.
like around 3-400 rpm
other than the engine runs great.


what could my problem be?

 

bump i have the same problem

 

How many miles are on your engine?

Is this without the A/C being on? Check your IACV (Idle Air Control Valve) located on the back of your intake manifold. It may just need some adjusting/cleaning.

You could also have a vacuum leak somewhere...check all hoses/gaskets.

 

Try adjusting the idle screw on the throttle body.. small turns make a big difference..

Adjust the screw with the car off... then pull the 7.5 amp backup fuse under the hood to reset the idle..

Start the car up and see if it fixed your idle..

 

If the cold idle is too low, try cleaning the Fast Idle Valve.