Please have the vehicle scanned again, and if nessisary, go to a different shop to get a 2nd opinion. It may not be the EGR system at all, it could be something else, like a faulty computer, or damaged hose somewhere. Talk to the tech who scanned it. Ask for a printout of the codes and an explaination of eachAnswerI have been a Mazda tech for 16 years.There are most likely ports clogged in your intake manifold.first check for vacuum at the boost sensor (map sensor)the nipple on the intake can get clogged with debris.If that isn't it,you have the passages clogged in the intake with carbon.you can get to these through the throttle body-you may want to remove it and the egr valve,use a coat hanger,wire,whatever it takes
How to know if air sensor not working on protege 2003
Every 90,000 miles per Mazda
Check the engine thermostat.
At the top of the engine near the windshield on the passenger side.
no sensor only a thermostat
need to know what wire go were for a 94 Mazda protege MAF sensor
The cam sensor is located on the left side of the engine (as your looking at it) on the valve cover. It is the only sensor that is located on that side on the upper part of the engine.
at the library
i have a 1996 Mazda protege and it is at the rear of the transmission if you're looking from the front drivers side. it is almost directly under the throttle position sensor which is located on the rear of your throttle body close to the firewall (almost directly in the center of the engine compartment).
No , it is not an interference engine
IT'S BEHIND THE MASS AIR FLOW SENSOR AND THE FUSE BLOCK ON LEFT SIDE OF ENGINE COMPARTMENT
that is the cooling fan relay.