P1148 closed loop control
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to
A/F sensor 1.
DTC No.
Trouble diagnosis
(Trouble diagnosis content)
DTC detecting condition
Possible cause ...
EVAP canister vent control valve
Exploded View
1. EVAP canister 2. O-ring 3. EVAP canister vent control valve
4. EVAP canister vent control valve hose
Removal and Installation
NOTE:
The EVAP canister vent control valve can be removed without removing the EVAP
canister.
REMOVAL
Remove the EVAP canister protector cov ...