There was a thread on this very problem a few months back. I have not dealt with this, so I do not remember the solution. Perhaps you can find the thread?
KE Duty cycle problem
Hello
I have the following DC problem .
“With ignition switched on (engine not running) the duty cycle should be about 70% .” Here I have 50% and when moving the air sensor plate 40%.
“With the throttle half opened + the air sensor plate not deflected the duty cycle should be about 10%, and the throttle fully opened + the air sensor plate not deflected the duty cycle should be about 20%.”; this is ok on my engine.
EHA circuit is given correct values. When the engine is in closed loop , duty cycle is fluctuating at 50 %.
The car drives not bad .
So I can not figure out this faulty static duty cycle reading.
I have the following DC problem .
“With ignition switched on (engine not running) the duty cycle should be about 70% .” Here I have 50% and when moving the air sensor plate 40%.
“With the throttle half opened + the air sensor plate not deflected the duty cycle should be about 10%, and the throttle fully opened + the air sensor plate not deflected the duty cycle should be about 20%.”; this is ok on my engine.
EHA circuit is given correct values. When the engine is in closed loop , duty cycle is fluctuating at 50 %.
The car drives not bad .
So I can not figure out this faulty static duty cycle reading.
1 - 2 of 7 Posts
Good to know the car's information. You're in the wrong forum. We don't have any m104's here. It'd probably be best if this thread were moved. The w124 forum, maybe?
1 - 2 of 7 Posts
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