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P0173 Diagnostic Trouble Code Discussion for July 2004

Fuel Trim Lean Or Rich (Bank 2)

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Trouble Ticket Help Requests for DTC P0173
Help Request Posted
2001 Mitsubishi Chariot 2.4L Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy VIN: N84W013526
P0173: Fuel trim malfunction Bank 2. It came in with code P0173 and took us hours to rectify injectors leaking that cause rich emission. manage to use scanner to lock indiviual injector while observing O2 thru' labscope and particularly #3 injector. Bingo!that was the culprit. Changed injectors, ...
July 09, 2004