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2003 Pontiac Vibe Trouble Code

Tiny
TUGGLE
  • MEMBER
  • 2003 PONTIAC VIBE
  • 4 CYL
  • FWD
  • MANUAL
  • 132,000 MILES
I recently had codes read for my Check Engine Light. I was told the Catalitic Converter was clogged up. The Car runs Great, No hessitation, no stumbling, No rotten egg smell. Just an annoying light. Any thoughts?
Monday, August 24th, 2009 AT 8:57 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
A clogged convertor will cause driveability problems, hesitation, loss of power.

The code they probably got was a downstream O2 sensor "effeciency below threshhold", this is generally fixed by replacing the downstream O2 sensor(s).

A convertor backpressure test will confirm if convertor is clogged.

I would get a second opinion and if it is an O2 sensor, I would avoid the shop that wanted to replace the convertor.
Factory Toyota convertors are NOT cheap.
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Wednesday, September 2nd, 2009 AT 6:47 AM

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