00 Civic ,bad Fuel Pump, Amp Waveform

[automasters.org]

FOUND BAD FUEL PUMP LOW AMPS CUSTOMER DENIED PUMP REPLACEMENT.CAR DROVE FOR ANOTHER THREE MONTHS BEFORE IT WAS TOWED IN FOR PUMP FAILURE FLATLINED

[David Green]

We recently had a problem with a fuel system on a Peugeot, my scanner proved the fuel system had a problem which then required investigations, but then Bosch came through the door the following day with a demo on one of their KTS diagnostic hand held units, forgot the model, they advised that the fuel pump/main relay was faulty.

Our techs changed it today, I have the old one which I am going to load test it to see if it breaks down. I am cureous how the KTS can diagnose the relay as the actualy fault in the circuit, which it may do but i am just wondering how it would determine it.

UK David

[eddiesverus]

We recently had a problem with a fuel system on a Peugeot, my scanner proved the fuel system had a problem which then required investigations, but then Bosch came through the door the following day with a demo on one of their KTS diagnostic hand held units, forgot the model, they advised that the fuel pump/main relay was faulty.

Our techs changed it today, I have the old one which I am going to load test it to see if it breaks down. I am cureous how the KTS can diagnose the relay as the actualy fault in the circuit, which it may do but i am just wondering how it would determine it.

UK David

The Bosch KTS is a self contained Database for Euros similar to the SnapOn Troubleshooter. It has a database for the most common failures and it probably has a built in test to check the current draw or voltage drop in the circuit. Iv'e used the KTS before and found it has very good repair info but I don't specialize in Euros and I don't have it..it would be a good investment if you specialize in Euro vehicles though.

[hologram]

peugot pump

hi there as i am driven mad with these vehicles (uk auto electrician)
the engine ecu has a built it fuel pump monitering circit and there for knows when there is a circit fault or developing problem.
the ecu applies a very low current down the pump circit and if the values dont match the data base flags up a code (fuel pump relay circit)
hope that helps
martin