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22/07/2022 3:33 pm
Topic starter
2019 Dodge Charger R/T; RWD, 370 hp 5.7 V8; 47,065 miles. P0171
Check engine light flashes intermittently when driving highway speeds. It flashes on and off until the vehicle is restarted. Then it doesn't do it anymore. Has done it about 6 times over the last month. Car runs normally. Once in about 10 or more startups; the engine is running significantly louder on idle.
Christian
3 Answers
4
22/07/2022 4:14 pm
https://repairpal.com/obd-ii-code-p0171
Check for vacuum leaks first, then clean your Mass Airflow Sensor (Scotty has a video on that)
Common Problems That Trigger the P0171 Code
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Control module software needs to be updated
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Vacuum leaks (intake manifold gaskets, vacuum hoses, PCV hoses, etc.)
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Plugged fuel filter or weak fuel pump
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Plugged or dirty fuel injectors
2
22/07/2022 3:47 pm
What is the code you get?
P0171
