323 BA V6 Astina (97') Idle Issue
 

Hi all,
Long time no post :)
So...
Last month mt astina developed an interesting issue.
When the car is warmed up (about 2 mins after running) the idle seems to waiver,
to be precise, when coming to a stop and putting the car in neutral idle drops to 4-500rpm, wavers up and down for 2 seconds and then settles back to 800rpm (normal).

I'm thinking MAF sensor screwed? Could be throttle position sensor but i don't think so. Any and all opinions welcome.

Very annoying issue, cars actually managed to stall a couple of times while doing it. Usually when power steering pump activates in conjunction with the idle drop issue.

thanks for your time boys and girls.

BUMB!!!
Help,

please

have you checked the intake piping for any cracks? that causes rev drops like this

yep,
had that happen about a year ago, replaced the pipe,
mazda charged $170 for it.
Didn't want to buy a second hand 13 year old plastic pipe so paid retail :(

Any other ideas?

idle set a fraction too low? goes to low to begins to stall before it catches itself?

crappy leads earthing to cam-cover as they move on braking?

theres a million things unfortunately :(

check your insulation plate as in the one in the dizzy. myn was cracked and arcing so replacing it solved the same issue i had :)

leads only 2 years old and high end leads at that.
hadn't thought of crackin the dizzy, will have a look tomorrow,
thx tony