How do you repair 1997 mazda protege idle air control valve

idle control valve may need cleaning or you have an air leak you need to check the air lines for a leak and if no leak check the idel control valve.

Check intake tube for split & check for vacume leak. you can do this by spraying aerostart around vac lines & intake tube / manifold when car idleing. If leak detected the RPM will increase. does it **** up hills?

What about new spark plugs and wires?

YOUR VECHICLE HAS THE AIR BYPASS HOSES SYSTEM CONNECTS TO THE THROTTLE BODY.THE AIR BYPASS HOSE IS YOUR IDLE SPEED CONTROL.

Did you install a factory PCV valve ?

Hi:
Your idle speed is computer controlled, thru the IACV, or Idle air control valve. It is bolted to your intake manifold, and has an electrical connector. Many people have tried to remove them and spray them with cleaner to fix them, but most end up buying a new one...

Check your idle control valve most likely has become faulty; some has better luck and others, it very expensive to replace which new will cost 280-290 bucks, being 2000, I would check on ebay or a junk yard. This part is responsible for the regulation of idle speed; Ensures that the right amount of air flows around the throttle to achieve optimum fuel efficiency and engine performance. do not get from the dealer, 200% mark up on theirs, check with autoparts wearhouse.com

you may have a problem with your iac valve it controls your idle. get so throttle body cleaner and clean the throttle body and spray into the little hole on the side of the butterfly that leads to the iac valve. if that does not work you may have to replace it.

Check to see if the valve lifters are not making the noise. Turn on the engine and rev it up to about 1500 rpms and see if the clicking is coming from the valve cover area.

The idle on my 2003 Mazda Protege started acting strange one day - it kinda surged forward a little bit. Then the RPM would drop and kept wanting to stall out. It stalled out at a stop sign. The check engine light came on. I drove it immediately to my Goodyear mechanic. It ended up being the Idle Air Control Valve. They had to order the part from Mazda which took 3 days to get there. The whole thing cost $700. Runs great now (again).