Adding another 02 sensor on OBD1
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Adding another 02 sensor on OBD1
I have built my engine and about to put it back in and I will be running true duels. Is there any way that i can add another 02 sensor and not trip the ECU or anything, I dont want to delete it or put a simm on it and I also dont think it's a good idea to run the sensor on just one side because I cant put the stock pipes that are together in one spot for the sensor on the new headers. Can anybody help with this one?
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
What is your truck?
You don't need a second O2 sensor and adding one won't help, just put a single sensor back into the passenger side header collector. Yes it is OK for it to only "see" one side of the motor, I had longtubes on my '90 and it ran perfectly with a single sensor for many years, I verified this with my tuner.
You don't need a second O2 sensor and adding one won't help, just put a single sensor back into the passenger side header collector. Yes it is OK for it to only "see" one side of the motor, I had longtubes on my '90 and it ran perfectly with a single sensor for many years, I verified this with my tuner.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Yep you are good. That EFI system uses 2 batches of injectors.. 2 left bank and 2 right bank injectors in each batch but there is only 1 fuel map for all of them so it really doesn't matter how many cylinders the O2 sees.. all get the same injector duty cycle.
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mikerans
1987 - 1996 F150 & Larger F-Series Trucks
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Mar 20, 2013 01:00 PM
