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P0303 Diagnostic Trouble Code Discussion for May 2020

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2003 Toyota Highlander 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JTEGF21A63
P0303: Cylinder 3 Misfire Detected. Here's a little back story of the car. Customer came in requesting to replace the converters. He had someone check them and found to be bad. I replaced all of them for him. The cats where indeed clogged and separating. Car started up and ran ok afterwards....
May 25, 2020
2003 Toyota Highlander 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JTEGF21A63
P0303: Cylinder 3 Misfire Detected. Here's a little back story of the car. Customer came in requesting to replace the converters. He had someone check them and found to be bad. I replaced all of them for him. The cats where indeed clogged and separating. Car started up and ran ok afterwards....
May 26, 2020