I've looked on here and seen that code 25 is a/f is lean. What could be causing this. also when i pulled the code the "O/D off" light kept flashing, i thought it was supposed to stay on steady. Also whenever the cel comes on my "TRAC OFF" light comes on with it. HELP ASAP would be appreciated since today is my only day off for another week. Thanks.

 

Vaccum leak/ clogged air filter/ bad oxygen sensor/ dirty-bad MAF
to name a few.

 

what about the "O/D OFF" light is that supposed to be blinking or is it supposed to be steady?