OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
P1489
EVAP Canister Purge Regulator Valve 2 Short To B
Toyota
Auxiliary Emissions Control
Low severity
P1491
EVAP Canister Purge Regulator Valve 2 Open Circuit
Toyota
Auxiliary Emissions Control
Low severity
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