Faulty Sensors: Sensor malfunctions can cause inaccurate data to reach the ECU, leading to performance issues. Wiring Problems: Poor connections or damaged wiring can disrupt communication with the 2012 Scion iQ 1.3L ECU. Software Glitches: Software bugs or corrupted data can impact the ECU's ability to regulate engine functions. Water Damage: Exposure to moisture can damage the ECU, causing erratic behavior or total failure. ...

Faulty Sensors: Sensor malfunctions can cause inaccurate data to reach the ECU, leading to performance issues. Wiring Problems: Poor connections or damaged wiring can disrupt communication with the ECU. Software Glitches: Software bugs or corrupted data can impact the ECU's ability to regulate engine functions. Water Damage: Exposure to moisture can damage the ECU, causing erratic behavior or total failure. ...