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My 2003 Mazda tribute is idling extremely low and shuts it self off when stopped for longer than a 30-45 seconds. There is no check engine or anything but I ran a I/M test and it showed these problems:

Cat -> X

EVAP -> X

O2S -> X

HRT -> X

EGR -> X

What could be the possible issues?

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    Biggest cause is the throttle body is dirty and need a good cleaning.
    – Moab
    May 1 '20 at 0:53
  • 1
    Welcome to Motor Vehicle Maintenance & Repair! Can you keep the vehicle running if you modulate the throttle? Also, clear the codes and run it again. Those codes, if active, should be throwing a check engine light. Also ensure your CEL is working properly. You should be able to see it come on during a key on, then go out. This is the system's power on diagnostics. May 1 '20 at 11:20
  • It turned out to be the throttle body. Thanks Moab! Sep 21 '20 at 20:24

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