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P0304 Diagnostic Trouble Code Discussion for April 2019

Cylinder 4 Misfire Detected

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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2015 Audi Q3 Quattro Premium Plus 2.0L Misfire, MIL Lamp on VIN: WA1EFCFSXF
P0304: Cyl.4 misfire detected. We have confirmed this is not an ignition misire. Inspected the spark plugs, swapped ignition coils and replaced the spark plugs. The misfire is always cyl.#4. It only happens on acceleration over 3,000 rpm's. We are looking at replacing the fuel injector....
April 15, 2019
2004 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on VIN: 1J4GW48S84
P0304: Cylinder 4 Misfire Detected. Customer brought this one back in for a misfire on #4 again. Tried all day yesterday to get it to misfire but couldn't get it to happen. This morning I swapped out the injector because it was under warranty anyways. Had it running on and off all day with n...
April 18, 2019
2010 Dodge Ram 1500 SLT 5.7L Misfire, MIL Lamp on VIN: 1D7RV1CT6A
P0304: Misfire. ... replaced camshaft and lifters worn camshaft at least 2 failed rollers on lifters, vehicle performed well after replacement although ticking remained (loudest at#1 Fuel Injector) , Mar 12/19 Completed repairs as delays sourcing new lifters, remanufactur...
April 25, 2019