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Technically, when there is a fault such as an O2 sensor failure, the engine management system (the computer) goes into "Open Loop" condition. This mode is normal while the engine is warming up but causes poor fuel economy and reduced performance. Once the engine has warmed up to normal operating temperature it will switch to a Closed Loop condition. You always want the system to go into closed Loop under normal conditions.
O2 sensor failures will sometimes cause the "Check Engine" light to come on, sometimes not. It is always best to have the system checked for fault codes if you suspect a problem like this.
What else can I help you with?
Why does my 99 Mitsubishi Galant Idle poorly?
Timing, a bad plug (s), bad plug wires, bad maf sensor, bad map sensor, bad o-2 sensor, bad ign. Module
If i unhook bank 1 o2 sensor 1 it run fine and when hooked up i get po 304?
Bad o 2 sensor bet your,e check engine is on.
Where is the IAT sensor for the resistor piggy backing on the 1996 Eclipse GS?
the 2.o may be on the air intake by the mass air sensor or if its the spyder with the 2.4 its straight back from the center of the car
Why running lean?
needs an O-2 sensor?
What happens when the O 2 sensor goes out?
no sense 02
Why would your car leak power steering fluid?
the o ring can be bad or you might have a crack in the line would be my first 2 guesses
How much is the cablecar to O 2?
Price on cable car docks to O 2
Were is the o'2 sensor located on a Nissan b15 engine?
is it on the exaust by the head
What fuse controls the O 2 sensor in a 2003 Honda Accord?
The O2 sensor isn't fused. It plugs straight into your ECU.
Where is speed sensor located on a 1997 Acura?
underneath the car on the bottom o the engine in front of the passenger front seat
Will your jeep run if you bypass the O 2 sensor?
Run, yes. Run properly, no.
Where is the camshaft sensor on vectra c?
diagram of where crank shaft sensor goes on vauxhall vectra 2.o sri 1999 model
