Die Bosch D-Jetronic war 1967 die erste Großserien elektronische Einspritzung der Welt. - Bosch's D-Jetronic was the first mass-production electronic fuel injection.
Injectors doesn't inject
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5 years 2 months ago #13335
by Dr-DJet
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshops Heizung/Klima 10.5.(HU), D-Jetronic 28.6.(F),20.9.(ER), K-Jetronic 31.5.(ER),23.8.(F)
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Replied by Dr-DJet on topic Injectors doesn't inject
Hi Ward,
that could be correct. It means that the ECU can generate injection pulses and ground connection is there. Now please remove fuel pump relay and pin 1 on ignition coil and measure pin 3,4,5,6 again whuile cranking the engine. Both tests can operate without a MAP sensor. Then verify that you see 90Ohm / 360 Ohm on MAP sensor from ECU connector (ECU disconnected) and check that there is no ground connection.
Does your car start and immediately stop again?
that could be correct. It means that the ECU can generate injection pulses and ground connection is there. Now please remove fuel pump relay and pin 1 on ignition coil and measure pin 3,4,5,6 again whuile cranking the engine. Both tests can operate without a MAP sensor. Then verify that you see 90Ohm / 360 Ohm on MAP sensor from ECU connector (ECU disconnected) and check that there is no ground connection.
Does your car start and immediately stop again?
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshops Heizung/Klima 10.5.(HU), D-Jetronic 28.6.(F),20.9.(ER), K-Jetronic 31.5.(ER),23.8.(F)
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- Ward627
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5 years 2 months ago #13391
by Ward627
Replied by Ward627 on topic Injectors doesn't inject
I've got my injectors injecting.
I think it was a combination of problems.
First there was bad wiring of the MAP-sensor (I didn't measured any resistance at the ECU) and injectors ( some injectors had a interruption in the wiring),
Also there was one injector that was stuck. I've cleaned them all in a ultrasonic cleaner.
After this all, my injectors are injecting again.
Thanks to all, for helping me out!
I think it was a combination of problems.
First there was bad wiring of the MAP-sensor (I didn't measured any resistance at the ECU) and injectors ( some injectors had a interruption in the wiring),
Also there was one injector that was stuck. I've cleaned them all in a ultrasonic cleaner.
After this all, my injectors are injecting again.
Thanks to all, for helping me out!
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- Dr-DJet
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5 years 2 months ago #13392
by Dr-DJet
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshops Heizung/Klima 10.5.(HU), D-Jetronic 28.6.(F),20.9.(ER), K-Jetronic 31.5.(ER),23.8.(F)
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Replied by Dr-DJet on topic Injectors doesn't inject
Hi Ward,
thanks for updating us. And yes wiring harnesses more and more become a problem.
thanks for updating us. And yes wiring harnesses more and more become a problem.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshops Heizung/Klima 10.5.(HU), D-Jetronic 28.6.(F),20.9.(ER), K-Jetronic 31.5.(ER),23.8.(F)
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