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2010 Jeep Patriot Sport 2.4L Misfire
Posted to Chrysler Driveability on 4/29/2021 8 Replies

This is a weird one for me. The PCM says the engine is misfiring on cylinders 1 and 4, but it's running fine. Then because the PCM "thinks" it's misfiring, it shuts the injectors off on those cylinders, and then the engine actually starts to misfire. Turn ...

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car Vehicle Data

2010 Jeep Patriot Sport

VIN 1J4NT2GB6A
Engine2.4 L / 4 cyl / GAS
DeliveryFuel Injection / MPFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCold, Hot, Idle, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
P0315Crankshaft Position Sensor Not Learned
P0335Crankshaft Position Sensor 1 Circuit Malfunction (No Signal)
Open Help Request

car Vehicle Data

2010 Jeep Patriot Sport

VIN 1J4NT2GB6A
Engine2.4 L / 4 cyl / GAS
DeliveryFuel Injection / MPFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCold, Hot, Idle, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
P0315Crankshaft Position Sensor Not Learned
P0335Crankshaft Position Sensor 1 Circuit Malfunction (No Signal)