engine light coming on

[kyhillbilly]

the other day my engine light started coming on only when going downhill. i also noticed it seems to be idling a little rougher. it is an 01 century class with a 450hp cummins. any ideas?

thanks in advance for any help,
kyhillbilly



There is no such thing as people asking stupid questions. It's more a matter of stupid people asking questions.

 

[raceman]

Timing sensor. I had that same type of thing happen and that is what it was. If they plug it in they can tell you right away what caused it simply by the code.

Raceman
OTR O/O