What to do if your OBD says code 23?
What to do if your OBD says code 23? If they are not reconnected, code 23 will set. A quick test for the intake air temperature sensor circuit from the ECM would be to unplug the temp sensor and watch the intake air temperature sensor reading on the scan tool while jumping the harness side of the sensor connector. Why is the code 23 on my air cleaner? Sensors are often unplugged when checking the air cleaner. If they are not reconnected, code 23 will set. A quick test for the intake air temperature sensor circuit from the ECM would...