jaguar xj8 3.2 1999
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10-21-2019, 02:50 PM
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jaguar xj8 3.2 1999
Ive owned my jag for 8 years, recently When Ive been driving for about an hour the restricted proformance comes on. but when it cools down ot goes off again. i had this checked and a code of P1647 so I changed the heated oxygen sensor control module bank 2. but problems still arising any suggestions ?
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10-21-2019, 10:10 PM
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Possible causes
Faulty Upstream HO2 Sensor Bank 2
Upstream HO2 Sensor Bank 2 harness is open or shorted
Upstream HO2 Sensor Bank 2 circuit poor electrical connection
Faulty Powertrain Control Module (PCM)
Have you had the code cleared?
If so, have you driven the car at least 30-50 miles (50-80km)? Page 5 tells the drive cycle... http://www.jagrepair.com/DTCforms/X1...C_OBDII_R1.pdf ...this may have to be repeated to get it to clear.
Check this and to help pages 30-36 is about the O2's... http://www.jagrepair.com/images/TSB/...0Diagnosis.pdf
Faulty Upstream HO2 Sensor Bank 2
Upstream HO2 Sensor Bank 2 harness is open or shorted
Upstream HO2 Sensor Bank 2 circuit poor electrical connection
Faulty Powertrain Control Module (PCM)
Have you had the code cleared?
If so, have you driven the car at least 30-50 miles (50-80km)? Page 5 tells the drive cycle... http://www.jagrepair.com/DTCforms/X1...C_OBDII_R1.pdf ...this may have to be repeated to get it to clear.
Check this and to help pages 30-36 is about the O2's... http://www.jagrepair.com/images/TSB/...0Diagnosis.pdf
Last edited by Highhorse; 10-21-2019 at 10:16 PM.
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