What are the possible causes of a p1289 code?
P1289 Possible Causes. Wrong thermostat. Engine overheated. Low engine coolant level. Faulty Cylinder Head Temperature (CHT) sensor. Cylinder Head Temperature (CHT) sensor harness is open or shorted. Cylinder Head Temperature (CHT) sensor circuit poor electrical connection.
What does CHT mean on Ford p1289?
The Cylinder Head Temperature (CHT) Sensor is mounted into the wall of the cylinder head and is not connected to any coolant passages. The CHT sends a signal to the Powertrain Control Module ( PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (-258°F), the PCM disables four fuel injectors at a time.
What is the diagnostic code for a 1998 Jeep TJ?
If you’re having a check engine light in your 1998-2006 TJ, here is a list of codes that will help you find out what the problem is. To run the check and find out what error code (s) it’s outputting do this: Turn the key ON -> OFF -> ON -> OFF -> ON within 5 seconds.
Why is the oxygen sensor on my Jeep not working?
Oxygen sensor response slower than minimum required switching frequency. Neither rich or lean condition is detected from the oxygen sensor. Oxygen sensor heater element malfunction. Oxygen sensor input voltage maintained below normal operating range. Oxygen sensor input voltage maintained above normal operating range.
P1289 Possible Causes. Wrong thermostat. Engine overheated. Low engine coolant level. Faulty Cylinder Head Temperature (CHT) sensor. Cylinder Head Temperature (CHT) sensor harness is open or shorted. Cylinder Head Temperature (CHT) sensor circuit poor electrical connection.
The Cylinder Head Temperature (CHT) Sensor is mounted into the wall of the cylinder head and is not connected to any coolant passages. The CHT sends a signal to the Powertrain Control Module ( PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (-258°F), the PCM disables four fuel injectors at a time.
What is the diagnostic code for a jeep check engine light?
Refer to our Generic OBD II code list for definitions on all other Jeep diagnostic trouble codes. Manufacturer Specific Codes P1105Open Or Shorted Condition Detected In The Baro Read Solenoid Control Circuit – Read Our Article on Automotive Circuit TestingFor Help With This Jeep Check Engine Light Code P1192Inlet Air Temp. Circuit Low