OBD fault code library

Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.

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P1291 Injector High Side Short To GND Or VBATT Bank 1
Ford Injector Circuit High severity
P1295 Multi-Faults Bank 1 With Low Side Shorts
Ford Injector Circuit High severity
P1450 Unable to Bleed Up Bleed Fuel Tank Vacuum
Ford Fuel and Air Metering High severity
P1303 EGR Calibration Fault
Ford Auxiliary Emissions Control Medium severity
P1309 Misfire Detection Monitor Not enabled
Ford Ignition System High severity
P1311 ION Sensing Module SEC Line 1 Circuit Fault
Ford Ignition System High severity
P1314 Misfire Rate Catalyst Damage Fault Bank 2
Ford Ignition System High severity
P1324 Knock Sensor Power Source Circuit Low Voltage
Ford Ignition System High severity
P1327 Knock Sensor 2 Low Input
Ford Ignition System High severity
P1329 Cylinder 5 Knock Control Limit Attained
Ford Ignition System High severity
P1334 Ignition Coil Knock Detection Cylinder 3 & 4
Ford Ignition System High severity
P1337 Crankshaft Position Sensor 2 No Signal
Ford Ignition System High severity

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