pqc 10/3/2012

1990 Nissan 300ZX Base 6Cyl3.0L - Engine

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Engine hesitating and feels if on 5 cylinders. Once going runs fine on highway

Where should I start for diagnosing the problem?

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  Joe Boulay 10/3/2012

  When was the car tuned up last? How long has it been doing this? how many miles on it? Give me more information please and i may be able to help you better.
  Joe
  joeboulay.com

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  pqc 10/4/2012

  I have a 1990 NA, 255000, last tune up at 200k. Recently had catalytic converter replaced, previous one broke apart and clogged the exhaust on left side. Exhaust pipes black on this same side
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  Joe Boulay 10/4/2012

  Check for vacuum leaks @ idle

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