i need help on obd1 converion

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Old Mar 11, 2010 | 11:55 PM
  #1  
vtecpros's Avatar
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Icon6 i need help on obd1 converion

hey i have a 90 ef 4 door with a sohc vtec with obd1 distributor and p28 ecu but i dont know where the extra wires from the obd1 jumper harness exactly connect too
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Old Mar 12, 2010 | 12:00 AM
  #2  
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Crazy Honda Guy
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Default Re: i need help on obd1 converion

- 2nd ground off the vtec solenoid
- vtec solenoid activation wire
- wires for 4 wire heated o2 sensor
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Old Mar 12, 2010 | 12:38 AM
  #3  
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Default Re: i need help on obd1 converion

ok i got the vtec wired up but i i dont know were to plug the 4 wires from the o2 sensor
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