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2001 Toyota Sienna Diagnosis

Tiny
ONALO
  • MEMBER
  • 2001 TOYOTA SIENNA
  • 3.0L
  • V6
  • FWD
  • AUTOMATIC
  • 63,859 MILES
I diagnosed PO100, PO110, PO420, while the next one PO420 is also pending. The malfunction indication light was on. What could this codes lead to and how does one avoid or stop any further damage to the vehicle?. Here's the vehicle's Vin no. For more understanding:- 4T3ZF13CX1U384397 and its history if this is the right Odometer too. Thanks for your understanding.
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Monday, December 9th, 2013 AT 2:31 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The first two deal with lthe maf and air tem p so lcheck for abroken duct work as well as grommets and hoses on engine as that will cause that aswell. The 420 is catalytic converter so it could be the converteris going bad or ther eis an air leak in the exaust in front of it. Also check your battery for condition including load test if it 's weak it wil cause it.
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Monday, December 9th, 2013 AT 7:57 AM

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