OBDII devices track speed by reading ECU data, starting from zero movement and resetting the counter. The accuracy of the 0-60 time primarily depends on the communication method used to transmit the data. While even Bluetooth transmitters have some latency, it shouldn’t significantly impact the results, certainly not adding three or more seconds. While not perfectly precise, OBDII 0-60 times are generally considered reliable. For comparison, try using a stopwatch app or a physical stopwatch to time your 0-60 runs.
To ensure accurate readings, disable traction and stability control. If you have an automatic transmission, try launching from a dead stop and also from a standing start with around 2,000 to 2,500 RPM. Keep in mind that published 0-60 times, like those from Motor Trend, are achieved under ideal conditions with manual transmissions.
Factors like vehicle modifications and maintenance can also affect 0-60 times. If your car was built before May or June 2010, it might benefit from the shift solenoid TSB (Technical Service Bulletin) 11-11-11, which addressed shift lag issues, particularly between gears 2-3 and 3-4. These lags could significantly impact acceleration times. Knowing your car’s build date and modification status will help determine if mechanical issues are contributing to slower times.
