Pulled KOER code 91 ...

[dubbsix]

The computer sees a lean mixture signal coming from the O2 sensors and tries to compensate by adding more fuel. Many times the end result is an engine that runs pig rich and stinks of unburned fuel.

Well my car doesnt run rich.. or doesnt smell like it is.

 

[jrichker]

The computer sees a lean mixture signal coming from the O2 sensors and tries to compensate by adding more fuel. Many times the end result is an engine that runs pig rich and stinks of unburned fuel.

Well my car doesnt run rich.. or doesnt smell like it is.

Since your nose isn't calibrated in parts per million and is subject to weather, what you ate last, and your overall good heath, I wouldn't trust it to measure Air/Fuel ratio accurately. Million dollar noses are employed by wine makers, perfume manufactures and food industry. I have never heard of one used in the automotive industry.

 

[dubbsix]

lol,

Okay. Very good point.

 

[KM 94 GT]

if your getting a lean code on bank 2 you might also have an intake or fuel injector seal leak. spray it down with something flammable like brake parts cleaner and listen for the engine idle to change

 

[jrichker]

if your getting a lean code on bank 2 you might also have an intake or fuel injector seal leak. spray it down with something flammable like brake parts cleaner and listen for the engine idle to change

Richard Pryor, the black comedian who torched himself while freebasing with cocaine said "Fire is a wonderful depilatory". I have always considered that sage advice coming from someone with firsthand experience. Therefore I avoid using highly flammable substances when looking for vacuum leaks. A squirt can of motor oil is a safer, but messier choice.