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Home >> Porsche >> 2004 >> Cayenne Base >> Repair and Diagnosis >> Engine Performance >> System >> OBD (II) - P0010 - P0199 >> P0021 >> Diagnosis/troubleshooting

OBD (II) - P0010 - P0199: P0021: Diagnosis/troubleshooting

NOTE: Fault P0021 is only entered if there is a difference of between 5°NW and 14°NW in the actual value compared with the nominal value within a period of between two and five seconds.
WORK INSTRUCTION CHART

Work instruction Display OK If not OK
1 Read out fault memory
  • Check whether additional faults have been recorded
Only fault P0021 was recorded
Go to step 3
Fault P0011 was also recorded in the DME control module
Go to step 2
2 Check oil pressure, oil pump, pressure-regulating valve and oil type Continue troubleshooting, Refer to LUBRICATION
→ End
3 Check magnetic hydraulic valve for leaks, check sealing strips on camshaft adjuster and camshaft adjuster itself for damage and check camshaft adjustment oil circuit for leaks and blockage Continue troubleshooting, refer to CYLINDER HEAD, VALVE DRIVE
→ End