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Fuel Trims
I'm at a loss!!
Model 135i BMW
Perhaps someone from the forum can tell me where to look for faults.
Parts Replaced:
1-MAP sensor on intake
2- O2 sensors (both pre cat) Do I need to reset the Fuel adaptations when these are replaced?
Still getting the P0174 code, and the fuel trims seem to be the culprit.
Below is the freeze frame data.
Freeze Frame
DTC that caused required freeze P0174
frame data storage
Fuel system A status: CL
Fuel system B status: CL
Calculated Load Value 42.0 %
Engine Coolant Temperature 84.20 °F
Short Term Fuel Trim -Bank 1 -0.8 %
Long Term Fuel Trim - Bank 1 12.5 %
Short Term Fuel Trim -Bank 2 0.8 %
Long Term Fuel Trim - Bank 2 29.7 %
Intake Manifold Absolute Pressure 11.52 inHg
Engine RPM 680.00 rpm
Vehicle Speed Sensor 0.00 mph
Ignition Timing Advance for #1 -1.5 °
Cylinder
Intake Air Temperature 41.00 °F
Absolute Throttle Position 12.5 %
Time Since Engine Start 136 sec
Fuel Rail Pressure 2190.07 psi
Commanded Evaporative Purge 0.0 %
Fuel Level Input 22.0 %
Barometric Pressure 29.83 inHg
Control module voltage 14.443 V
Absolute Load Value 83.5 %
Commanded Equivalence Ratio 0.999
Relative Throttle Position 2.7 %
Ambient air temperature 46.40 °F
Absolute Throttle Position B 12.2 %
Accelerator Pedal Position D 14.9 %
Accelerator Pedal Position E 14.5 %
Commanded Throttle Actuator 3.1 %
Control
Long Term Secondary O2 Sensor -9.4 %
Fuel Trim - Bank1
Long Term Secondary O2 Sensor -12.5 %
Fuel Trim - Bank2
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