I have a 2001 and the check engine light came on yesterday, I borrowed a code reader and it showed two codes.

P1590 Manf cntrl veh spd Idle speed control auxiliary input

P0441 Evap emission control system purse flow fault

I understand the P0441 can be an issue with the gas cap also I have the owners manual but couldn't find the meaning of these codes, is it in there?

Thanks,

 

1590 is the rough road/abs fault code for the 3 amigos.