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.

D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052

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09 Aug 2019 16:55 #12008 by LUX PIERRE
D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052 was created by LUX PIERRE
Hallo mein Herr
Ich habe eine Posche 914/4 2.1L GB
und ich wollte die D-Jetronic-Einspritzung zurücksetzen und ich habe das Glück, das neueste Modell zu haben,
Porsche 914 2.0L ECU, Bosch 0280000052
aber das osque habe ich eingesteckt, es regelt nicht das pumpengas! also frage ich mich wo ist der fehler denn alles andere funktioniert !!
Danke
Lux Peter
Belgium / SPA

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09 Aug 2019 19:32 #12009 by Michi68
Replied by Michi68 on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Ist wohl wenig hilfreich

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09 Aug 2019 22:20 #12013 by nordfisch
Replied by nordfisch on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052

LUX PIERRE wrote: ...
aber das osque habe ich eingesteckt, es regelt nicht das pumpengas!
...

Hallo Peter,
ich verstehe deinen Satz überhaupt nicht, weil ich die Wörter nicht kenne.

Das Wort 'osque' - was bedeutet es in Englisch oder Deutsch, Französisch...

'Pumpengas' - was bedeutet es ???

Gruß
Norbert

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09 Aug 2019 22:21 #12014 by Dr-DJet
Replied by Dr-DJet on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hallo Peter,

leider verstehe ich Dienen Text nicht, was bestimmt an einem Übersetungsprogramm liegt. If you feel more comfortable in English, please let us try that. Ich muss auch wissen, ob das ein Motor für Europa oder USA ist. Denn ein 0280000052 ist für USA. und braucht den Druckfühler 0280100043.

Ich bin aber noch 1 Woche in Urlaub.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107

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09 Aug 2019 23:10 #12016 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
good evening
it means that when I switch on the ignition, the ECU does not control the fuel pump.

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09 Aug 2019 23:18 #12017 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
but i have also a ECU 280 000 044

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09 Aug 2019 23:50 #12019 by nordfisch
Replied by nordfisch on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi Peter,
maybe the ...052 ECU is defective. Users reported faulty fuel-pump-control-section at 914-ECUs more than once.

You can use the ECU 0 280 000 044 instead.
It is pairable with the same MPS 0 280 100 043.

The 044 ECU misses the deceleration-function the 052 has, but this shouldn't be a problem.

Regards
Norbert

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10 Aug 2019 06:16 #12020 by Dr-DJet
Replied by Dr-DJet on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi Peter,

every ECU must run fuel pump for 1 to 2 seconds when you switch on ignition. If not, it is definitely broken.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107

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10 Aug 2019 10:37 #12023 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hello
and could you tell me who could repair my 280 000 044? because for the moment I am really desperate.
Thank you.
Lux Pierre
i am of Spa near Francorchamps.

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10 Aug 2019 11:07 #12025 by nordfisch
Replied by nordfisch on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi Peter,
maybe the problem isn't located in the ECU.

Do both ECUs fail to control the fuel-pump?

Try to connect Pin 19 at the ECU's plug to ground <with ignition 'on'>.
The pump should run then, otherwise the problem will be located at the relay-board, the connections towards the pump or the pump itself.

Regards
Norbert

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10 Aug 2019 12:43 #12029 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hello
the 0052 calculator never made the pump go.
So I put the other calculator, the 044 and him, the pump worked 2 days ... the 3 rd day nothing but the rest works, the relay also

I am a good electrician, but not very good in electronics!

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10 Aug 2019 14:54 #12032 by nordfisch
Replied by nordfisch on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Peter,
please check again - as I described before - does the pump run when you apply 'Ground' to Pin 19 of the ECU?
You can do this - the pump-relay ist switched by grounding this line.

Regards
Norbert

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10 Aug 2019 15:45 - 10 Aug 2019 15:49 #12034 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
I'm going crazy !!!!
here I reistall everything and now the pump works! on the 044
but he does not want to get going (not run)
Last edit: 10 Aug 2019 15:49 by LUX PIERRE.

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10 Aug 2019 18:12 #12041 by nordfisch
Replied by nordfisch on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi Peter,
the engine needs:

- air
- fuel
- spark

What is missing?

Regards
Norbert

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10 Aug 2019 18:16 #12042 by Dr-DJet
Replied by Dr-DJet on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi,

if engine does not start you should check spark, fuel pressure and vibration of fuel injectors.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107

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11 Aug 2019 10:17 #12047 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
spark is goog on the 4 cylinder
1 and 3 explose.
but when I want to start the engine 2 and 4 do not want to explose
and the 4 is wet in the exhaust.

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11 Aug 2019 18:24 #12055 by nordfisch
Replied by nordfisch on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi Peter,
you tell us the spark plug of cylinder 4 gets wet but has spark.
This sounds strange to me - but maybe the engine didn't run before you changed the ECUs.
Tell us more about the reasons for the change, the failure of the engine...

When you got the engine in non-working condition, the best is to make a complete check-up, download-link: jetronic.org/images/cars/jetronic/Checklist-1.1-EN.pdf

Regards
Norbert

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12 Aug 2019 07:12 #12060 by Dr-DJet
Replied by Dr-DJet on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hi Peter,

wet in exhaust can mean 2 things: Drained in fuel from leaking injector or no spark or wrong timing of spark.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107

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12 Aug 2019 11:44 - 12 Aug 2019 14:52 #12061 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hello
this afternoon I control the injectors.


Hello
here is test 1.
when I start the car, without gas, nothing comes out of the injectors.
when I start again by giving gasses of gas, it comes out of gasoline.

big problem ....
Last edit: 12 Aug 2019 14:52 by LUX PIERRE.

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12 Aug 2019 12:01 #12062 by LUX PIERRE
Replied by LUX PIERRE on topic D-Jetronic Porsche 914 2.0L ECU, Bosch 0280000052
Hello
when I test the engine by hand, candles cleaned, I have a good spark on the 4
but when I want to start the engine
only 1 and 3 work
and I see on the 4 at the escape of the humidity.

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