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Home > Tips and Howtos > Benz Repair and Maintenance Tips Tips and Howtos

Fuel Pump / Relay connector tips - by NPK [Benz Repair and Maintenance Tips]
Requested and Answered by Buckrey on 29-Aug-2005 16:17 (4611 reads)
Fuel Pump / Relay connector tips - by NPK
It will be handy to know the connection to the fuel pump.

At the fuel pump relay, connect 87 to 30 or 87 to +ve of battery terminal.

It seems that the Fuel Pump Relay has mati or poor connection. I once did
a bypass to check if the fuel pump is running OK. It is done by
connecting a wire across two connection of the relay. This will
permenantly run the fuel pump, regardless if the ignition is switch on.

If you have a failure tepi jalan and bypass the connection(when the fuel
pump relay has mati), you can still drive the car...but make sure that
the wire is removed once you stop the engine. It is NOT good to keep the
fuel pump running when the engine has stopped.

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Poster Thread
240D
Posted: 2008/4/20 15:50  Updated: 2008/4/20 15:50
Wise Benzitos
Joined: 2007/2/5
From: KL - Nusajaya
Posts: 3231
 Tq
Thanks Apek....a handy info for me