service engine light came on, did a diagnostic test with a can obd2 car reader and it came up with a po 453 code. can anyone tell me what this means?

Asked by Apr 12, 2015 at 01:02 PM about the 2003 Pontiac Grand Am GT Coupe

Question type: Maintenance & Repair

1 Answer

61,255

This is an EVAP system trouble code. The computer has detected a high input signal from the gas tank pressure sensor. There are a few components to check beginning with the gas cap. It may be faulty. The wiring going to the pressure sensor may be faulty. The charcoal canister may be bad. The vent valve itself may be bad. Or the gas tank could be damaged. The EVAP system sends gasoline fumes back to the engine to be burned instead of releasing them into the air.The system became required in California beginning 1970 and nationwide beginning 1971. HTH. -Jim

Your Answer

Add photo

Related Questions

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,440
#2 John Saffrahn
John Saffrahn
Reputation 1,560
#3 Tom Demyan
Tom Demyan
Reputation 1,360
View All

Related Models For Sale

Used Pontiac Grand Prix
28 Great Deals out of 3,713 listings starting at $1,100
Used Pontiac Firebird
10 Great Deals out of 794 listings starting at $2,000
Used Chevrolet Impala
792 Great Deals out of 34,371 listings starting at $799
Used Chevrolet Camaro
283 Great Deals out of 38,314 listings starting at $1,250
Used Ford Mustang
363 Great Deals out of 44,352 listings starting at $1,000
Used Chevrolet Malibu
1,007 Great Deals out of 85,655 listings starting at $1,995
Used Nissan Altima
1,088 Great Deals out of 82,556 listings starting at $670
Used Pontiac Bonneville
5 Great Deals out of 653 listings starting at $1,599
Used Pontiac GTO
10 Great Deals out of 484 listings starting at $6,500
Used Honda Accord
814 Great Deals out of 81,559 listings starting at $899
Used Toyota Camry
1,095 Great Deals out of 96,233 listings starting at $1,250