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2012 Ford Mustang 3.7L Misfire
Posted to Ford Driveability on 12/20/2016 17 Replies

Misfire confirmed #1 cylinder at idle only. #1 spark plug black from running rich. Check intake for leak with propane to find no leak. Smoke test intake okay. Short term fuel trim at idle on right bank is commanding more fuel. The following has been performed:...

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Message Closed w/Summary

car Vehicle Data

2012 Ford Mustang

VIN 1ZVBP8AM4C
Engine3.7 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

P0301Cylinder 1 Misfire Detected
P2196Heated Oxygen Sensor (Bank 1 Sensor 1) Biased Rich
P219ABank 1 Air/Fuel Ratio Imbalance
Message Closed w/Summary

car Vehicle Data

2012 Ford Mustang

VIN 1ZVBP8AM4C
Engine3.7 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

P0301Cylinder 1 Misfire Detected
P2196Heated Oxygen Sensor (Bank 1 Sensor 1) Biased Rich
P219ABank 1 Air/Fuel Ratio Imbalance