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CEL Light Codes?

Discussion in 'Civic and del Sol - EG and EK' started by craiger, Nov 3, 2008.

  1. craiger

    craiger New Member

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    What kind of codes could a crack in the exhaust manifold throw out? I am getting a cylinder misfire in 1 and 3 cylinders. The car runs great just loud at warm up. The crack is pretty bad and goes all the way to the o2 sensor hole.

    Thanks in advance.:ph34r:
     
  2. craiger

    craiger New Member

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    Oh yeah. It is a 97 civic lx d16y7 motor.
     
  3. tabKola

    tabKola New Member

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    It should throw out codes for the O2 sensor if its actually affecting anything (mines cracked and has not caused any issues) A misfire is usually caused by a problem with getting spark or fuel.
     
  4. phyregod

    phyregod !!YTINASNI

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    Get your exhaust fixed. Drive to a muffler shop and get it welded up or repaired. The o2 sensor can't work correctly if exhaust is escaping and fresh air is being let in.. Sensor is getting incorrect readings, sending that to the ECU, and the ecu is sending the wrong signals to your injectors and ignition causing the missfires.
     
  5. austin20110

    austin20110 New Member

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    Definatly want to get that fixed before it starts causing other problems. But the only code it should throw is the o2
     
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