Alfa Romeo Forum - View Single Post - Motor Control System Failure

joapi · 13-06-2007

I wonder if we got the same problem. Since we bought our 156 SW JTS Selespeed we've been to the garage say 50 times, sometimes as often as twice a week. It's always the Motor control system failure, but the error code is either regarding the lambda1, the throttle potentiometer or something like that. They have changed one lambda sensor, the throttle housing (if that's the correct word in english) and the peddle. Last time they checked lambda sensor efficency with an Examiner, while reving it, and found that lambda 1 didn't work as much as lambda 2, which released the lambda sensor error code. One minute later they were working simultanously. The phrase "Change the ECU" came up, and I really hope it won't have to come to that. I shall ask if they've checked the battery? Or does it sound like something else.

13-06-2007	#15 (Post Link)
joapi Newbie Join Date: Sep 2006 Posts: 4 Member car: 156 SW JTS	Re: Motor Control System Failure - Check your Battery I wonder if we got the same problem. Since we bought our 156 SW JTS Selespeed we've been to the garage say 50 times, sometimes as often as twice a week. It's always the Motor control system failure, but the error code is either regarding the lambda1, the throttle potentiometer or something like that. They have changed one lambda sensor, the throttle housing (if that's the correct word in english) and the peddle. Last time they checked lambda sensor efficency with an Examiner, while reving it, and found that lambda 1 didn't work as much as lambda 2, which released the lambda sensor error code. One minute later they were working simultanously. The phrase "Change the ECU" came up, and I really hope it won't have to come to that. I shall ask if they've checked the battery? Or does it sound like something else.