Idle Problem

atsp · 04-02-2009, 05:25 PM

So ive had this problem with my car, when id stop at a light my car would sometimes drop revs as to the point of about to stall..then the revs would just come back up again. i changed the spark plugs and it felt fine for a few days..now its back again

Sleepy Gonzalez · 04-02-2009, 05:40 PM

My BJ has done that since near new. Dealer charged $74 to cean the IAC valve, to no avail. Still comes and goes. Doesn't like dropping to idle at the same time as AC turning on and/or power steering. The Twiggy cams aggravated the problem (unsurprislingly!). I hate my car's stock computer for a few reasons, the poor idle up control is one of them. Maybe someone has a solution other than a stupidly fast idle?

lovemyBG · 04-02-2009, 05:56 PM

same kind of thing happens in my dads mercedes 300E... except sometimes the car actually stalls.
we changed the battery in it and got a new fuel head yesterday and its been running fine so far.. have you checked your battery? if theres something wrong with it low revs might not be enough to charge the battery/keep it going?
not too sure if that makes any sense but it could be possible?

70NYD · 04-02-2009, 07:47 PM

car doesnt run of the battery once you crank it over

my BA does this as well ONLY when i break REALLY hard.i dont know y n frankly i dont care. might be the idle motor thats starting to go in it.. if 323s even have idle motors

Cosmo Dude · 04-02-2009, 09:05 PM

Check for air leaks in the intake.

04-02-2009, 05:25 PM	#1
atsp Junior Member Join Date: Aug 2007 Location: sydney Car: mazda astina sp Posts: 235 View Photos By: atsp	Idle Problem So ive had this problem with my car, when id stop at a light my car would sometimes drop revs as to the point of about to stall..then the revs would just come back up again. i changed the spark plugs and it felt fine for a few days..now its back again

04-02-2009, 07:47 PM	#4
70NYD Veni, vidi, vici Join Date: Mar 2008 Location: Brisbane Car: 1996 BA Hatch & 2005 RX8 Posts: 4,911 View Photos By: 70NYD	car doesnt run of the battery once you crank it over my BA does this as well ONLY when i break REALLY hard.i dont know y n frankly i dont care. might be the idle motor thats starting to go in it.. if 323s even have idle motors __________________

04-02-2009, 09:05 PM	#5
Cosmo Dude コスモ Join Date: Dec 2002 Location: Location: Vic Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD Posts: 7,888 View Photos By: Cosmo Dude	Check for air leaks in the intake. __________________ My 'stina Hatch

04-02-2009, 05:40 PM	#2
Sleepy Gonzalez AstinaGT Regular Join Date: Aug 2006 Location: Australia Car: 2002 Mazda 323 Astina 2.5 V6 manual Posts: 324 View Photos By: Sleepy Gonzalez	My BJ has done that since near new. Dealer charged $74 to cean the IAC valve, to no avail. Still comes and goes. Doesn't like dropping to idle at the same time as AC turning on and/or power steering. The Twiggy cams aggravated the problem (unsurprislingly!). I hate my car's stock computer for a few reasons, the poor idle up control is one of them. Maybe someone has a solution other than a stupidly fast idle?

04-02-2009, 05:56 PM	#3
lovemyBG Junior Member Join Date: Dec 2008 Location: Melbourne Car: BG Astina Posts: 105 View Photos By: lovemyBG	same kind of thing happens in my dads mercedes 300E... except sometimes the car actually stalls. we changed the battery in it and got a new fuel head yesterday and its been running fine so far.. have you checked your battery? if theres something wrong with it low revs might not be enough to charge the battery/keep it going? not too sure if that makes any sense but it could be possible?