Check engine light

Tiny
DHUMAN45
  • MEMBER
  • 2000 VOLKSWAGEN JETTA
  • 2.0L
  • 4 CYL
  • FWD
  • MANUAL
  • 170,000 MILES
Code p0420
Monday, June 5th, 2017 AT 12:24 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
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Monday, June 5th, 2017 AT 7:23 PM

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