2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

o2 sensor

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Old Mar 10, 2002 | 08:36 AM
  #1  
MazdaRx7Power's Avatar
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From: Altamonte Springs, FL
o2 sensor

ok i got my true dual put on. it has the slot for the o2 sensor. my friend put my headers on and the o2 sensor in but the son of a bitch couldnt find the cable for the o2 sensor again. can someone help me out, i was just browsing right now and i could see anything. anyone know where it is, or what page on the haynes manual that it shows it on?
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Old Mar 10, 2002 | 09:16 AM
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7Rebel's Avatar
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From: Somewhere
The wire of the O2 Sensor runs under the upper manifold near the rear of the engine. They often break or get burnt under the upper manifold. This could be your problem.

The wire harness that contains the O2 Wire starts in the passenger side ECU ..... Goes through the firewall on the passenger side ..... Runs under the upper manifold near the front of the engine .... Circles around to the back of the engine and under the upper manifold to the O2 sensor.

Hope this helps

George
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