3rd o2 sensor
Thread Starter
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Senior User
Joined: Apr 2003
Posts: 167
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From: detroit michigan
3rd o2 sensor
have a 96 351w van. has mass air. want true duel exaust x pipe with headers. van has 3 o2 sensors. keeping the 2 before cat but i`am going to remove the cat. what can i do to make everything work without cat or cats. what do i need to do to not get a check engine light. can i put the 3rd o2 sensor in the x pipe will it work correctly? i`am sure someone here knows what has to happen to make it work rite thanks for reading
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
Install the single downstream sensor somewhere downstream of the upstream one(s). The X pipe is as good a place as any.
You will need a MIL eliminator to fool the PCM into thinking you have a cat installed and working.
Steve
You will need a MIL eliminator to fool the PCM into thinking you have a cat installed and working.
Steve
Thread Starter
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Senior User
Joined: Apr 2003
Posts: 167
Likes: 2
From: detroit michigan
buy mil elminator do you mean an o2 sim? or are they 2 different parts? what brand should i look into , where can i get it , i have never seen one before. so now i`am in class thanks for reading
Thread Starter
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Senior User
Joined: Apr 2003
Posts: 167
Likes: 2
From: detroit michigan
k did some searching i know what the eliminator is now. and i have also read lots of people that try to use them have nothing but problems (dont work) sure wish if someone had one laying around they`ed hook up an ohm meter to one to find out what resistor or cap is under the shrink wrap cant see spending $30 on a 10 cent resister that you can buy at radio shack. i also read somewhere that on mustangs you can turn the rear sensor off with a programmer and the it aslo makes it run a little better. can that be done with a 96 ford truck or van ecm also?? (96-97)
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
Google "make your own mil eliminator"
1 meg resistor, 1 uf cap, and some heatshrink. Less than a buck and some time. Simple RC integrator.
Programmers may have that capability. Check with the dealer/vendor.
Steve
1 meg resistor, 1 uf cap, and some heatshrink. Less than a buck and some time. Simple RC integrator.
Programmers may have that capability. Check with the dealer/vendor.
Steve
