QuestionQUESTION: When i try to start the engine , it floats.
It seems that the/some injectors are triggered all the time so the fuel runs into the chamber.
An electrical diagram would be fine.
I am a diagnostic technician at a MB dealership but we have lost all docs.Can you help me?
ANSWER: what year?
sounds like the trigger points have gone bad (stuck) if it is a DJet
Remove and clean
Could also be contacts in TPS
really need to know year
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QUESTION: 1972 i think it is a D-jetronic.
What do you mean with TPS?
How much degrees should contacts be closest/open?
Thanks for answering/ helping me out!
B.
AnswerThrotle position sensor, side of intake, a potentiometer of sorts, turn ignition on should be 5 volts to one of the wires.5-1 on the other , 0 on the last one
The one with .5-1 should increase to 4 or so with trottle opening
if the one with .5 is well over one, check the ground wire ( the one with 0)
the symptoms of bad trigger points is opening of all or none of injectors, take out and clean, cannot be adjusted, seldom go bad, but can , how many miles on car
Good luck
