1994 Honda Civic Logo
Posted on Oct 05, 2010
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I have a 1994 Honda civic LSi, with a D15B engine. It started ok this morning after which I left the car idling to warm up, then heard it stall, went to start it again and it would turn over and not start. Tried again but with pumping the accelerator and it sputtered a few times then started after releasing a cloud of smoke. The check engine light came on and since then the rev has been going up and down and the check engine light is still on, the car burned a half tank of gas from which I barely got 30 miles. Figure its one of the sensors but I am not sure which one. O2, MAP, TPS? Help please!!

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Kevin Daniels

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  • Honda Master 1,463 Answers
  • Posted on Oct 05, 2010
Kevin Daniels
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Sounds like your idle air control valve is bad, causing the hard start and erratic idle, up and down.

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  • Contributor 13 Answers
  • Posted on Oct 05, 2010
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You may have a clogged catalytic converter

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Another place to look is your IAC, or Idle air control valve. It is bolted to the back of the intake manifold, and can be removed and cleaned. It is usually the cause of most Honda Idle problems.
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Hope this helps

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