When ac is off idle is normal but when ac is on idle starts to go down which is reverse and starts to fluctuate

if my idle is 800 at normal when i turn the ac on it goes down to 500-400 and eventually
fluctuate..

if u can share guys regarding wiring tips..it would be a big help

iacv replaced

 

MM&Y of car would help.

Reset the ECU, it should idle up the engine when A/C is on, that apparently is not happening.

If you manually keep the RPM up, how does the A/C work, cold enough? 94

 

make sure that base idle is correctly set as well.

 

possibly bump up your timing

 

Idle air control. Clean it you must. Idle better it shall. Maybe. It worked for me.