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Check engine light is on. Just tuned up, plugs, filter, fluid levels ok. Diagnostic code shows P0401. What does this mean? What are probable fixes?
Jan 23, 2010
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here is an article about EGR codes, specifically the P0401, which is an EGR System fault for low flow. http://repairpal.com/OBD-Code-P0401
check vsv solenoid.
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