DTC Problem
Thread Starter
Joined: Apr 2013
Posts: 17
From: California
DTC Problem
Rolled back my dyno to stock and now am getting a DTC Code of P0174 System too lean on bank 4. Need to keep my stock tune for emissions testing, so what do you think might be the remedy? Clean MAH air sensor?
2007 Mustang GT
JBA Shorties
Cold Air intake
2007 Mustang GT
JBA Shorties
Cold Air intake
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