Possible causes
– Boost pressure sensor harness is open or shorted
– Boost pressure sensor circuit poor electrical connection
– Faulty boost pressure sensor
– Faulty Turbo/Super Charger
– Engine over temperature
– Ignition misfire exceeds the calibrated threshold
– Faulty Knock sensor (KS)
– Boost pressure sensor circuit poor electrical connection
– Faulty boost pressure sensor
– Faulty Turbo/Super Charger
– Engine over temperature
– Ignition misfire exceeds the calibrated threshold
– Faulty Knock sensor (KS)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0238 FORD OBD Code Description