Join Now
International Automotive Technicians Network

P1521 Diagnostic Trouble Code Discussion for April 2012

Incorrect Engine Oil Type


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1521
Help Request Posted
2007 Dodge Ram 1500 Truck TRX4 5.7L Misfire, MIL Lamp on VIN: 1D7HU18237
P1521: Incorrect Engine Oil Type. ... 'popping sound'. Scanned and found p1521-incorect oil viscosity and p0306-cyl 6 misfire. Changed oil with 5w-20 and added a flush. Could not get truck to misfire and told cust. to try it. Customer came back with same codes and misfire. Freeze frame said mi...
April 19, 2012
2007 Dodge Ram 1500 Truck TRX4 5.7L Misfire, MIL Lamp on VIN: 1D7HU18237
P1521: Incorrect Engine Oil Type. ... 'popping sound'. Scanned and found p1521-incorect oil viscosity and p0306-cyl 6 misfire. Changed oil with 5w-20 and added a flush. Could not get truck to misfire and told cust. to try it. Customer came back with same codes and misfire. Freeze frame said mi...
April 19, 2012