my check engine light and vsc came on , on my 2006 toyota sienna.codes c1201; po430; po420.....what does this mean?

Asked by Preciosa May 20, 2015 at 05:13 PM about the 2006 Toyota Sienna CE 8-Passenger

Question type: Maintenance & Repair

2 Answers
30

Maharani answered 8 years ago

Pls check ur gas cap .it may b foulty or loose ,N spark plugs,Mas Airflow sensor,Oxygen sensor n Ur catalytic converter.if any of these is foulty,it may couse Ur Check eng light to ON.

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