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P0173 Diagnostic Trouble Code Discussion for May 2015

Fuel Trim Lean Or Rich (Bank 2)

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Trouble Ticket Help Requests for DTC P0173
Help Request Posted
2012 Chevrolet Express 2500 4.8L MIL Lamp on VIN: 1GCWGFCA8C
P0173: Syst rich. Customer states he can not put fuel into tank for 20 min. Pushing pressure with vehicle turned off. Now tank is venting out of the top of the vent valve into the atmosphere. Strong fumes under car on a hot day idling. Codes for both banks rich and too much pur...
May 14, 2015