Guys I drive a 94 integra LS, and the idle just dropped below a 1000x, and I'm not getting a "check engine light", and yes the bulb does work. please help me troubleshoot

 

so how far does it drop? does it drop and then go back up?

 

well....sometimes normal wear and tear can tamper with valve adjustments, timing, gaskets, etc...so.....just a reg tune up or if you want to just adjust the vacume screw on the throttlebody...will do just fine.

 

how do you find out what is the prob when idle goes up and down.

 

Vacuum leak is why idle is erratic