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P0421




DTC P0421 [LF, L3]

California Emission Regulation Applicable Model

Detection Condition/Possible Cause:





Diagnostic procedure

Step 1-Step 6:





Step 7-Step 8:






Except for California Emission Regulation Applicable Model

Detection Condition/Possible Cause:





Diagnostic procedure

Step 1-Step 6:





Step 7-Step 8:






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