...P0506 Idle Control System RPM Lower Than Expected & P0420 Catalyst Effeciency Below Threshold Bank 1 are the codes that I get. Is there a simple fix? Thanks unfortunately no ! Your best bet take ...
...P0420 Catalyst System Efficiency below Threshold - Bank 1. P0422 Main Catalyst Efficiency below Threshold - Bank 1. P0440 Evaporative Control Malfunction. P0441 Evaporative Control System - Improper ...
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