Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
Powertrain DTC Charts and Descriptions 4-49
Diagnostic Trouble Code (DTC) Charts and Descriptions
P0298 - Engine Oil Over Temperature Condition
Description: This DTC sets when the engine oil temperature protection strategy in the PCM has been activated. This
temporarily prohibits high engine speed operation by disabling injectors, to reduce the risk of engine damage from high engine oil temperature. The PCM uses an oil algorithm to determine actual engine oil temperature.
Possible Causes: • Very high engine RPM for an extended period of time
• Overheating condition
• Base engine concerns
Diagnostic Aids: The engine is operating in high RPM range due to incorrect gear selection. This may cause a lack/loss of power
or surge.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DY.
P0299 - Turbocharger/Supercharger A Underboost Condition
Description: This DTC sets when the actual TCBP value is less than the desired TCBP value by 27.6 kPa (4 psi) or more for
5 seconds, indicating an under boost condition.
Possible Causes: • Damaged turbocharger (TC) wastegate regulating valve solenoid
• TC wastegate regulating solenoid valve stuck
• Wastegate stuck open
• Wastegate control hose open or plugged
• Air leak between turbocharger and throttle
Diagnostic Aids: Check tubing for restrictions, cracks and incorrect fitting connections.
Check the turbocharger wastegate regulating valve solenoid for correct operation.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test HN.
P02FC - Cold Start Fuel Injection Control Circuit Low
Description: This DTC sets when the cold start valve circuits indicate the expected voltage value is less than the calibrated
threshold.
Possible Causes: • CSV circuit open
• CSV circuit short to ground
• Cold start fuel relay
• CSFPPWR circuit open
• VPWR circuit open
Diagnostic Aids:
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test AB.
P02FD - Cold Start Fuel Injection Control Circuit High
Description: This DTC sets when the cold start valve circuits indicate the expected voltage value is greater than the
calibrated threshold.
Possible Causes: • CSV circuit short to voltage
• CSFPPWR circuit short to voltage
• VPWR circuit short to voltage
• Cold start fuel relay
Diagnostic Aids:
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test AB.
P0300 - Random Misfire Detected
Description: This DTC sets when the misfire detection monitor detects an engine misfire in multiple cylinders or the PCM
cannot identify which cylinder is misfiring.
2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.