Date: 11 Apr 2007 08:30:34 -0700 From: "pzi" <pzinospamnet> Subject: 9-3 viggen - Throttle Motor. Full PWM in Closing Direction
I get check engine light with two fault codes: 1260 and 1251 after I took the cylinder head off to change the head gasket. The first one 1260 is the "Throttle Return Spring. Too Low Force" and the second one 1251 is "Throttle Motor. Full PWM in Closing Direction". I understand the first one but what is PWM in the second? When this happens I feel a bit of rough operation of the accelerator pedal. I think this may be the accelerator pedal wire dirty or damaged. Strange is that this does not happen all the time - all clear for 30 min of driving and then it is. I read the codes and clear them and its ok for next 30 min. Any other ideas?