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Hey all,  new to this forum. Had a p2173 code on my 2015 journey and fixed it by replacing the throttle body. Couldn’t find any posts doing a web search so I thought I’d throw this out there for anyone who might be or will have a similar issue.

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Just adding for clarity.  A Google search revealed the following:  The P2173 OBD-II trouble code is one of number of possible codes that indicates that the Powertrain Control Module (PCM) has detected a malfunction in the operation of the Throttle Actuator Control System. ... Code P2173 is set by the PCM when high air flow is detected in the throttle actuator control system.

 

Peace.

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Yes, I only replaced the throttle body after inspecting the vacuum lines. Then took the old throttle body out and manually pushed on the throttle plate and noticed the plate maneuverability was not smooth and would sometimes stick despite the throttle body being relative clean. 

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