2000 Infiniti I30 P0430 Trouble Code

Tiny
JACKBEME
  • MEMBER
  • 2000 INFINITI I30
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
Catalyst system efficiency below threshold bank 2. What is the likelyhood that this is just the oxygen sensor gone bad versus the front/left catylytic converter gone bad?
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Thursday, February 18th, 2010 AT 9:47 AM

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Tiny
SILVERS2K
  • MEMBER
Well, use a diagnostic scan tool, read the data for the oxygen sensors, compare b2s1 and b2s2, as long as the readings are not mimic one another, meaning, identical, then oxygen sensor is okay, doing its job measuring, you would then look for other possible causes, such as, exhaust leaks, air intake leaks, timing, fuel injectors, or fuel injector leaks, spark plugs condition.
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Monday, March 15th, 2010 AT 10:39 PM

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