Hey there. yeah i have the same problem with my ford. the light is on and my car jerks a little on the first gear. its automatic by the way.
As i was told by some people that there could be few problems.
one----O2 sensor
two----air mass leak
three--sensor on the air tube went bad
I used the computer that i hooked up to my car and it told me
P0171 system too lean(bank 1)
if anyone know what that means please reply or send me email
[email protected]
thank you