Fuel System Anomalies P0170, the OBD-II Conundrum

P0170 means there was a malfunction in the computer's control of the air:fuel ratio. It also indicates that the fuel trims reached their limit of adding fuel. A fuel trim where the ECU is trying to add fuel would be a good indication of fuel starvation at idle. ;) I don't think yer O2 sensors are ... 16554 P0170 035 Fuel Trin, Bank 1 Malfunction Possible causes: Air leaks - Map, TB gaskets?? Lambada - Clean or Replace any other possibilities? Fuel trims codes indicate that the ecu is seeing a reading that indicates that the air fuel ratios are incorrect. The sensor was replaced and ... Got bored today decided to hook up GuzziDiag on the Tuono. Found one fault: P0170. P0615 P0170 Starting relay Short circuit to positive F. It sounds like you might have an exhaust leak. This causes the O2 sensor to think you have a lean run condition and fattens up the fuel mixture which causes a ... The engine code seems to relate to a plausability failure. There are several subtypes listed in the manual, but they all relate to exhaust leak ... First off I have a 04 330ci. I get one and only fault code: P0170 Fuel Trim Malfunction (Bank 1). My car has 66k miles. Interestingly, I was ... P0170 Fault ... Anyone on here pull a P0170 code? (Bank 1 Fuel Trim Fault) Looking for some guidance on how to proceed. P0170 means there was a malfunction in the computer's control of the air:fuel ratio. It also indicates that the fuel trims reached their limit of adding fuel.