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

Hi Peter,

every ECU must run fuel pump for 1 to 2 seconds when you switch on ignition. If not, it is definitely broken.

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.

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

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!

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