Well, The check engine light comes on to day.. Took it to Autozone for a diag test.. Say code is po155..

Asked by May 02, 2014 at 07:43 PM about the 2004 Chevrolet Cavalier LS

Question type: Maintenance & Repair

Take it to Autozone for a diag test.. Says it may be the gas cap. Try that first he says.. If not, get a smoke test on the fuel system as it is losing compression fast on start up. I look up the code and it says O2 sensor. Any suggestions??

1 Answer

232,515

Yes, P0155 is either a failed O2 sensor or the wiring harness or connector to the O2 sensor is faulty....http://www.obd-codes.com/p0155

Your Answer

Add photo

Related Questions

Search Chevrolet Cavalier Questions

Chevrolet Cavalier Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,890
#2 dandyoun
dandyoun
Reputation 1,290
#3 mbar1
mbar1
Reputation 1,170
View All

Related Models For Sale

Used Chevrolet Cobalt
49 Great Deals out of 3,889 listings starting at $1,698
Used Chevrolet Malibu
826 Great Deals out of 81,056 listings starting at $995
Used Chevrolet Impala
511 Great Deals out of 29,109 listings starting at $1,100
Used Honda Civic
491 Great Deals out of 87,958 listings starting at $1,499
Used Honda Accord
716 Great Deals out of 87,004 listings starting at $1,250
Used Ford Mustang
362 Great Deals out of 46,831 listings starting at $1,999
Used Ford Focus
537 Great Deals out of 56,093 listings starting at $800
Used Toyota Corolla
665 Great Deals out of 71,481 listings starting at $600
Used Pontiac Sunfire
316 listings
Used Dodge Neon
703 listings starting at $1,950
Used Toyota Camry
824 Great Deals out of 89,156 listings starting at $950
Used Chevrolet Silverado 1500
1,728 Great Deals out of 167,269 listings starting at $1,800
Used Nissan Altima
843 Great Deals out of 78,728 listings starting at $1,677