Mazda 323,Mazda 626 & Mazda 929 Whether the compact 323, the mid sized 626, or the full sized 929, these vehicles remain very popular even though production has stopped.

Problem with Mazda 323

Old 06-21-2006, 05:17 AM
Thread Starter
Join Date: Jun 2006
Posts: 1
Default Problem with Mazda 323

Hi guys,

I recently got a Mazda 323 1990 4wd. I have a few problems i'd like to try and sort out.

First of all, in the cold or when you first start it, it runs like crap. I have to pump it full of gas for it to run. Until it gets warm it just really does not like to go. I was wondering if I can play with anything to get the revs up or whatever when first starting the car until it's warm. When I try to reverse or anything it will die until it is warm.

Other small problem is the brake light is constantly on. I was wondering how to fix this? Maybe some switch is broken?

Thanks guys
Old 06-21-2006, 10:03 PM
Senior Member
Join Date: Jul 2005
Posts: 2,747
Default RE: Problem with Mazda 323

Hi infused.

Runs crappy like idle speed is very low and wants to die? Runs ok off idle though? If so then you are most probably looking at a problem with the Air Valve on the underside of the upper intake plenum. This valve is open and allows air to bypass the throttle plate when coolant is cold and then closes off as the coolant warms up. As it closes the Idle Speed Control Valve on the under side of the throttle body take over idle speed control. This valve is electricaly controlled by the PCM to maintain even idle speed under various loads. The other Air Valve is completely dependent on coolant temp to open and close. If it is stuck closed then you would be getting the problem you are describing. Might be able to remove and clean. Would be worth a try anyway. Pic at bottom shows location.

Which brake light is on all the time? The ones at the back of the car or on the dash??

Related Topics
Thread Starter
Last Post
New Member Area
12-06-2011 04:25 PM
Mazda 323,Mazda 626 & Mazda 929
05-20-2009 07:37 PM
General Tech
05-11-2007 10:30 AM
General Tech
04-07-2007 11:18 PM
Mazda 323,Mazda 626 & Mazda 929
07-21-2006 09:04 PM

Thread Tools
Search this Thread
Quick Reply: Problem with Mazda 323

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.