How to pull engine codes from diag. Box???

Discussion in 'Diagnosis/Help' started by EfrainLarios, Sep 10, 2015.

  1. EfrainLarios

    EfrainLarios Member

    Hi again. I set my timing back to stock, 10 degrees btdc. Now I got a check engine light come one:scratch
    I suspect it may be the o2 sensor but not 100% sure. I would like to pull up the fault code but don't know which terminals are needed. Also what are the fault codes for bad o2 sensor? I get a misfire at 2000 rpms. Reving up slowly at 2k it drops back down to 1800rpms and cycles like that till I pass 2k then normal. Drives fine overall. Thanks in advance. 1986 gts 3gse, stock engine. New ignition wires, dizzy, stage 3 clutch kit, and engine rebuilt with under 600 miles.
     
  2. EfrainLarios

    EfrainLarios Member

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