Rep Power: 0

my 97 honda vtec rpm going down when the ac is on it's always flaktuates when the ac is on i buy a new servo sensor and it goes down again i change my comp box nothing happen it's a lot of money i already spend with it what is the cause of that rpm going down pls help me

 
Rep Power: 812

clean out the intake system and all the idle air valves around the throttle body.

 
Rep Power: 0

tnx so after going to clean the idle air in the throttle and intake and if the prob is there what do u think the may prob of this car

 
Rep Power: 812

thats really the only thing it could be is the idle valves and throttle body. could be a vacuum leak or a clogged pcv valve but those would cause more serious idle problems.