Codes

[GT Rob]

Took the car to O Reilly's because car has been acting up so they pulled two codes 539 and 542. He said one was something to do with the A/C and the other was fuel pump so I asked him whats that mean and he had no idea dose any know or where can I find out what they mean

 

[Addermk2]

and you drive a.....

 

[GT Rob]

95 gt mods shorties headers. Xpipe with no cats cold air intake pullies. Its an automatic . The codes 542 is fuel punp circuit open;pcm to motor. And the other one is 539 is A/C on during self-test