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Discussion Starter #1
So anyone with an older model SRT Challenger have had this code? I've read everything from a vacuum leak to bad transmission solenoids. In a rush to have it checked I cleared the code, drove to a local mechanic shop to get this thing diagnosed and they can't tell me what it is until it happens again and I leave it that way. Which means I'll have to have it towed there. This guy said it's probably the throttle body and gas pedal sensor? But idk like I've said I've read it all, I'm just trying to get a better idea as to what my wallet is about to run in to. Help!


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Is your car a 6.1 or a 6.4?
Could the code be a P2173? (I don't see a P21713 in the flow charts!)
(Based on what you say that is what I suspect.)

A brief detail on P2173 is

P2173-HIGH AIRFLOW/VACUUM LEAK DETECTED (SLOW ACCUMULATION)



  • When Monitored: Ignition on and engine running with no MAP Sensor DTCs.
  • Set Condition: A large vacuum leak has been detected or the signal voltage for both TP Sensors is stuck at 2.5 Volts and calculated MAP is less than the Gas Flow Adaptation value. One trip fault; the DTC will set within 5 seconds. ETC light will flash
Possible bad MAP sensor. (Sounds intermittent)
This of course is just a guess.



Tom.
 

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Discussion Starter #3
Is your car a 6.1 or a 6.4?
Could the code be a P2173? (I don't see a P21713 in the flow charts!)
(Based on what you say that is what I suspect.)

A brief detail on P2173 is

P2173-HIGH AIRFLOW/VACUUM LEAK DETECTED (SLOW ACCUMULATION)



  • When Monitored: Ignition on and engine running with no MAP Sensor DTCs.
  • Set Condition: A large vacuum leak has been detected or the signal voltage for both TP Sensors is stuck at 2.5 Volts and calculated MAP is less than the Gas Flow Adaptation value. One trip fault; the DTC will set within 5 seconds. ETC light will flash
Possible bad MAP sensor. (Sounds intermittent)
This of course is just a guess.



Tom.


It's the 6.1 with a cam and bolt ons, but yes sorry that was a typo lol


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Discussion Starter #4
Is your car a 6.1 or a 6.4?
Could the code be a P2173? (I don't see a P21713 in the flow charts!)
(Based on what you say that is what I suspect.)

A brief detail on P2173 is

P2173-HIGH AIRFLOW/VACUUM LEAK DETECTED (SLOW ACCUMULATION)



  • When Monitored: Ignition on and engine running with no MAP Sensor DTCs.
  • Set Condition: A large vacuum leak has been detected or the signal voltage for both TP Sensors is stuck at 2.5 Volts and calculated MAP is less than the Gas Flow Adaptation value. One trip fault; the DTC will set within 5 seconds. ETC light will flash
Possible bad MAP sensor. (Sounds intermittent)
This of course is just a guess.



Tom.


What my intune read was throttle actuator control system-high airflow detected


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What my intune read was throttle actuator control system-high airflow detected


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Yes. The description in the flow chart is factory description.
Check your PCV valve before throwing money at this problem.

Tom.
 

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Discussion Starter #6
Yes. The description in the flow chart is factory description.
Check your PCV valve before throwing money at this problem.

Tom.


Welp I found out what it was, it was indeed a vacuum leak. The hose that connects to the right of the intake manifold (not the PCV hose) was split down the length of it about 2 inches.


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Welp I found out what it was, it was indeed a vacuum leak. The hose that connects to the right of the intake manifold (not the PCV hose) was split down the length of it about 2 inches.


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Good! Glad you found it without putting a throttle body and pedal position sensors on it. Vacuum leaks are a major cause of engine issues!
Be well.

Tom.
 
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