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2003 Toyota Camry EGR system

Tiny
RMALBROUGH
  • MEMBER
  • 2003 TOYOTA CAMRY
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 68,000 MILES
Vehicle has a p0401 egr insufficient flow code. Has brand new toyota transducer, solenoid, egr valve, and map/boost sensor. Egr ports are clean. Egr tube has been removed and cleaned, and code is still returning.
Tuesday, January 13th, 2009 AT 8:33 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Possible Causes
à   Open or short in EGR gas temperature sensor circuit.
à   Defective EGR gas temperature sensor.
à   Vacuum hose disconnected or blocked.
à   Open in vacuum switching valve (VSV) circuit for EGR.
à   Defective EGR system.
à   EGR valve stuck closed.
à   Defective vacuum control valve.
à   Defective ECM

very common is vacuum switching valve (VSV)
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Tuesday, January 13th, 2009 AT 9:24 PM
Tiny
REGO RONALD
  • MEMBER
  • 4 POSTS
Where egr valve is located and how to clean it as my car vibrates
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Sunday, January 9th, 2011 AT 8:31 AM

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