We have an Autodata scanner and we used it on a 1997 Buick Century and got the code "401" Does anyone know what this means?

Asked by Dec 13, 2014 at 03:12 PM about the 1997 Buick Century Limited

Question type: Maintenance & Repair

1 Answer

795

That should be an EGR inefficiency code. Sometimes the passage between the EGR and intake becomes clogged, and that is usually the cause for the code. The operation of the EGR valve should be checked as well.

Your Answer

Add photo

Related Questions

Search Buick Century Questions

Buick Century Experts

#1 John Saffrahn
John Saffrahn
Reputation 940
#2 Tom Demyan
Tom Demyan
Reputation 780
#3 John Pate
John Pate
Reputation 520
View All

Related Models For Sale

Used Buick LeSabre
16 Great Deals out of 1,939 listings starting at $1,588
Used Buick Regal
169 Great Deals out of 10,546 listings starting at $4,000
Used Chevrolet Impala
557 Great Deals out of 35,581 listings starting at $899
Used Honda Accord
1,033 Great Deals out of 67,103 listings starting at $1,000
Used Buick Park Avenue
404 listings starting at $1,500
Used Chevrolet Malibu
1,177 Great Deals out of 79,465 listings starting at $2,500
Used Toyota Camry
1,202 Great Deals out of 83,224 listings starting at $750
Used Ford Taurus
256 Great Deals out of 18,809 listings starting at $1,499
Used Toyota Corolla
947 Great Deals out of 68,805 listings starting at $1,800
Used Nissan Altima
1,267 Great Deals out of 74,640 listings starting at $1,000
Used Honda Civic
825 Great Deals out of 83,793 listings starting at $750
Used Ford Mustang
706 Great Deals out of 44,428 listings starting at $1,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.