84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

O2 Sensor Issues

Old Mar 3, 2010 | 09:13 AM
  #1  
natesyota's Avatar
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From: Just North of Sutherlin, OR
O2 Sensor Issues

O2 Sensor Question
Hello! I'm new here, but I'm really glad I found this site, 'cause I'm Right in the middle of the re-install of the motor for my toy after a fresh rebuild.
My question is this...I just put a headmann header on my 22re, and there's no bung for the sensor! Is there a way to fool the computer into thinking that there's a good sensor in there, without a sensor? I've heard of a chip or resistor that plugs into the harness in place of the sensor, but noone around here seems to know where to find anything like that. Please Help! Thanks!

My Toy: '85 Toyota 4x4 pickup, 22re, .040 over, Balanced,
.435 lift cam, Headmann Header, 2.25" exhaust, 40 series Flowmaster
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Old Mar 3, 2010 | 09:16 AM
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waskillywabbit's Avatar
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Moved to proper section.

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Old Mar 3, 2010 | 03:48 PM
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Why not just have a bung welded in place somewhere in your collector or in the next pipe directly after your header?
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Old Mar 3, 2010 | 03:53 PM
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Voltage range for sensor is .2-.7V with .45 being correct mixture. You can try putting .45 volt into the sensor wire to see if the computer will take it. Connect a battery to a potentiometer and adjust until you get .45v. Worth a try for couple of dollars at Radio Shack.
But why not just have somebody weld a bung on.
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