Question about Buick Cars & Trucks
GM OBD Trouble Code 44
Auto Systems and Repair
Oxygen Sensor Error (Lean Condition Indicated)
The ECM receives a signal from the O2 sensor based on the amount of oxygen in the exhaust. If there is excess oxygen in the exhaust, it is in lean condition and the O2 sensor voltage will be low. The ECM uses this information to adjust the amount of fuel delivered to each cylinder.
Fault Code Description
Posted on Dec 01, 2014
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Posted on Jan 02, 2017
SOURCE: need buick century egr diagram
If your car runs bad with an EGR code then I would suggest that the EGR valve be replaced. I would like to know what code was set on your computer. It would help greatly. When the EGR malfunctions, you will have rough idle and possible stalling. If you have a code indicating EGR it may also condem the cat converter.Please show any codes that are set. Thanks Moe
Posted on Apr 24, 2009
You will need to take the car to a dealership to have the service department unlock the radio for you. They have a special code to unlock the radio and then you are required to change the code to one that you will remember. An appointment should not be needed because this takes about 5 minutes. I do not remember the code, sorry.
Posted on May 18, 2009
I would suggest buying a Haynes/Chilton book for both models, they may even be one in the same if the years are close enough. Look up the schematics for both and compare the differences circuit by circuit. There may be some slight differences with connection fittings, but thoroughly review the schematic diagrams first.
Posted on Jun 01, 2009
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