i have a 1999 toyota camry 6cylinders 3.0 engine,chek engine ligth come on the codes are p0401 & p402 what that means
Since you are getting both codes you may have a to replaced the EGR valve.
P0401 TOYOTA - Exhaust Gas Recirculation Flow Insufficient Detected Read more: https://www.autocodes.com/p0401_toyota.html
P0402 TOYOTA - Exhaust Gas Recirculation Flow Excessive Detected Read more: https://www.autocodes.com/p0402_toyota.html
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