2003 Nissan 350Z P0300 Random Misfire: TID Test Results and O2 Sensor Trim Analysis

Model: 2003 Nissan 350Z Fault Code: P0300 Posted: 2014-08-01 19:47

I'm experiencing a recurring issue with my 2003 Nissan 350Z where the P0300 random misfire code appears intermittently, followed by sudden engine shutdowns. I've attached screenshots of the freeze frame data and TID (Trouble Information Diagnostic) test results, which indicate potential issues with one of the oxygen sensors. The O2 sensor trim values show abnormal idle behavior, suggesting a possible fault in the sensor or its signal processing. Currently, no other diagnostic codes are present—only P0300. I'm seeking advice on whether this points to a specific oxygen sensor failure or another underlying issue related to engine management.