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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P1442 Stuck Close in Secondary Air Injection Vacuum Switching Valve Bank 1; DTC P1445 Stuck Close in Secondary Air Injection Vacuum Switching Valve Bank 2; DTC P2441 Secondary Air Injection System Switching Valve Stuck Close Bank 1 >> Monitor Strategy

Monitor Strategy

MONITOR STRATEGY

Related DTCs (Case 1) P1442 AIR VSV stuck close bank 1
(Case 2) P1445 AIR VSV stuck close bank 2
(Case 3) P2441 AIR valve stuck close
Required sensors/Components (main) AIR valve, AIR VSV bank 1, AIR VSV bank 2
Required sensors/Components (sub) AIR pressure sensor
Frequency of operation Once per driving cycle
Duration Within 20 seconds
MIL operation 2 driving cycles
Sequence operation None