How to Change an EGR Valve on a Mazda 626

Submit Your Tip

How to Change an EGR Valve on a Mazda 626 – This is a place for the community to provide tips and advice on How to Change an EGR Valve on a Mazda 626. This topic was created by atener and the tips are provided by the community. The tips you add here can be your own or referred from another site. The best tips are then ranked at the top when up-voted by members of the community.

Tip 1 - Check Engine Light Due to Restricted EGR System : Mazda 626 Common Exhaust & Emissions Problems

Published: 9 years, 6 month(s) ago | Submitted by Laverne Snow | permalink

Mazda 626 Check Engine Light Due to Restricted EGR System. This is a verified problem based on 16 reports. Learn more about this problem, when it occurs and how to fix it.

For further reading: http://repairpal.com/check-engine-light-due-to-restricted-egr-system-407 ^[1]

Tip 2 - Where is the egr valve located on 1998 mazda 626 - 1998-2002 Mazda 626

Published: 9 years, 6 month(s) ago | Submitted by Mary Stanhope | permalink

It's underneath the throttle body. Round in shape, has an electrical connector for the EGR lift sensor and a vacuum line is connected to it. Check the attached diagram. I would definitely clean it first and make sure that your vacuum lines do not have a leak before replacing it. No a common part tha... - 1998-2002 Mazda 626

For further reading: https://www.ifixit.com/Answers/View/66359/Where%2Bis%2Bthe%2Begr%2Bvalve%2Blocated%2Bon%2B1998%2Bmazda%2B626 ^[2]

Tip 3 - 1999 Mazda 626 Shakes when Idle

Published: 9 years, 6 month(s) ago | Submitted by Ray Hilton | permalink

I've got a 1999 Mazda 626 that shakes really badly when idling. It gets a little better when put into neutral, but not much. I've had two people suggest possibilities: Fuel filter Vacuum hose ...

For further reading: http://mechanics.stackexchange.com/questions/3059/1999-mazda-626-shakes-when-idle ^[3]