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Dual Pumps (044 Bosch) wiring


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Hi guys,

So we manage to get 8 new injectors for the engine ( Siemens Deka 630cc ) and now we want to add second fuel pump for better flow.

Here's the wiring diagram I've made, is this right or i've made a mistake? Pumps will run sequentially at the same time. Also, what current relays and fuses should I use?

Thanks for support guys,

Dual pump.bmp

Edited by mldc
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Your wiring diagram looks correct. 

I think this is the datasheet for your fuel pumps:


According to this the pumps will draw about 15 amps each. I would recommend a 30 amps relay and 20 or 25 amp fuse per pump.


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