Best Answer

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 each

AnswerI 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 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
User Avatar

Wiki User

โˆ™ 2011-09-13 22:12:57
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: What can you do with your 99 Mazda Protege when the EGR valve was replaced twice and the sensor once and the engine light is on again?
Write your answer...
Still have questions?
magnify glass
Related questions

Where is the 2003 Mazda Protege sensor 2?

How to know if air sensor not working on protege 2003

When should the timing belt on a 2001 Mazda Protege with a 1.75 liter engine be replaced?

Every 90,000 miles per Mazda

Your 1992 Mazda Protege DX is running hot.Radiator replaced could it be the water pump?

Check the engine thermostat.

Where is the map sensor located on a 2001 Mazda protege 1.6?

At the top of the engine near the windshield on the passenger side.

Where can you find the coolant sensor on a 91 Mazda protege?

no sensor only a thermostat

What is the signal wire for MAF for a 94 Mazda protege?

need to know what wire go were for a 94 Mazda protege MAF sensor

Where is the cam sensor located on a 2001 Mazda protege es 20?

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.

Where are there pictures of a 2001 Mazda Protege engine?

at the library

Where is the speed sensor on a Mazda protege?

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).

Is a Mazda Protege 2001 2.0 liter an interference engine?

No , it is not an interference engine

Does Anybody know where the IAT sensor on a 2003 Mazda Protege 2.0L is?


What is the sensor on the thermostat housing on a 1994 Mazda Protege?

that is the cooling fan relay.

People also asked