New O2 Sensor, In New Location, Lean Code #41
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
The computer is programmed to react to how the sensor behaves in the stock location, that is in terms of the actual mixture it sees and timing of events(exhaust pulses). Both of those things will be different further back in the exhaust even when the motor is running exactly as it should.
So I should be OK with the o2 sensor in the passenger side collector?
That's what most do with Lt headers.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
I had 2 different trucks with longtube headers and only a single sensor in the passenger side header collector and both ran great, one truck had the factory SD EFI and the other had a MAF conversion. I was able to get enough wire to reach the new sensor location with longtubes by simply removing the tape on the harness where is attached to the main harness(up behind the battery on those trucks) and pulling wire out some.
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
I had 2 different trucks with longtube headers and only a single sensor in the passenger side header collector and both ran great, one truck had the factory SD EFI and the other had a MAF conversion. I was able to get enough wire to reach the new sensor location with longtubes by simply removing the tape on the harness where is attached to the main harness(up behind the battery on those trucks) and pulling wire out some.
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Tuned
Joined: Sep 2014
Posts: 358
Likes: 7
From: Ky
Looks good now.
Went back to the muffler shop and had Ed relocate the O2 sensor, truck has not yet shown the #41 code in 6 key-starts and 75 miles.
Truck runs much better as expected.
Ed didn't want to cover the cost, it was $50.00 to relocate.
I took the gamble as I felt that I needed to eliminate it as a possibility, the sequence of events was too suspicious.
Wasn't going to go to war over it, he maintained he's done them like that before, and it's not like taking it to a dealer where all types of work are done, and you expect that all bases are covered.
This guy is a pipe bender and that's it. Good at it though.
Thanks for the help!
Went back to the muffler shop and had Ed relocate the O2 sensor, truck has not yet shown the #41 code in 6 key-starts and 75 miles.
Truck runs much better as expected.
Ed didn't want to cover the cost, it was $50.00 to relocate.
I took the gamble as I felt that I needed to eliminate it as a possibility, the sequence of events was too suspicious.
Wasn't going to go to war over it, he maintained he's done them like that before, and it's not like taking it to a dealer where all types of work are done, and you expect that all bases are covered.
This guy is a pipe bender and that's it. Good at it though.
Thanks for the help!
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