hi im quite new with this forum any help will be much appreciated!
i recently bought a used mazda 323f 1997 1.6 dohc it has a very high idle when i bought it .
i already fix the issue by changing the neutral switch and fixing vacuum leaks and fixing all vacuum lines the idle is now stable at 700 rpm.
but i cant seem to get base idle lower than 1200 rpm and cause some rev hangs while driving i already cleaned the iacv replace maf and the tps.
i also have some idle dips if i revv the engine to 3k rpm ang release the gas pedal the idle drops to almost stalling and sometimes stalls while coasting or changing gears..
already installed new plugs and check htleads and as my multimeter show that ht leads were okay
no vacuum leaks at all that can cause the idle to go high or cause drops when gas pedal were release.
the current idle is 700 rpm on neutral when ac is on its 750-800 rpm
i got 1200 rpm while GND and TEN were connected if i turn the a.c on while GND and TEN it will drop the idle to 300-500rpm (AAS is al the way in)