Oxygen sensor bypass

Joined
Jun 13, 2008
Messages
307
Location
Portland, Oregon
So I recently changed my 02 Sensor and I noticed it take the cruiser a bit longer to warm up; meaning it used to shift right away when it was cold not it takes a bit longer. Is this normal?
 

Beowulf

 
 
Joined
Mar 27, 2003
Messages
12,524
Location
Somewhere in the foothills...
The tranny shift points are controlled by the ECM. The tranny will hold low gear longer when the transmission fluid temp is cold. Once the transmission fluid is at normal operating temperature, the shift points will be normal. This behaviour is not related to changing O2 sensors.

-B-
 

Lka1988

Wheeling in scale
 
Joined
Aug 30, 2006
Messages
3,921
Location
Mechanicville,NY
Hi! I have a 3F-e engine, is there a way to bypass both the oxygen sensor? There are no strict emission laws here. Thanks.

Alex
Philippines
I would just leave them in. But if you REALLY want to get rid of them, you can use what's called a "dummy load" in place of the sensors.

PM '98 SNAKE EATER', I'm pretty sure he has a few tips...:hmm:
 

akarilo

 
Joined
Jan 19, 2006
Messages
2,015
Location
Tulsa, OK
The mixture will definately be richer without the O2 sensors. I experimented with bypassing mine on the turbo 62 (3fe), and the wideband allways showed richer conditions. You can run just one sensor and splice the ecu inputs together if you like; I ended up doing this as my setup only had one "downpipe".
 
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