Help Po - Tamaraw FX idling problem

[evil20angel]

Need help on my very old ride 96 5kFX,
Problem po is idling nung engine, halos mamatay na ang makina kapag naka idle:
with ac = 1200
without ac = falls down to 450 to 500
ive tried adjusting the idle screw (not sure kung correct yung term), pero pag tinaasan ko yung adjustment (normal idle, yung hindi na nginig) ang reading ay:

with ac = 1600
without ac = 800

hilo na ko sa kaka-adjust e,
help po please. thanks

[yapoy86]

eh di adjust mo lang yung sa aircon idling up actuator (vacuum advance/pull) yun lang problem mo.. have your idling set to required idling rpm for toyota 5k engine, when setting this power up all your lights and other electrical loads (except aircon) so that you will compensate the rpm drop caused by the alternator then once ok na yung rpm mo operate mo naman aircon then adjust mo yung sa idling up actuator.. you will see this actuator moving when you turn on your aircon and mostly located very near to your carb / throttle body

[evil20angel]

Yapoy86 sir, Thanks po sa advice, gawin ko immediately mayang pag uwi ko.
Thanks thanks.

[jaspi11]

alam ko merong tinitimpla na hangin dyan sa FX or sa mga carburator type..ganyan din nangyari sa FX ko nun biglang manginginig dahil parang bumababa nag idling nya tapos mamammatay na engine...nag try akong mag -adjust din kaso di ko makuha ang timpla....ang nakakuha yung suki kong mekaniko