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Discussion Starter #1 (Edited)
Hi, I am new here as I have a problem and hope someone might be able to help

my 307 hdi is failing to start. When turning the ignition on the fuel pump isnt priming. So I checked the voltage at the pump and it is only getting around 8v.

Next step I took was to feed a live wire straight to the fuel pump. The fuel pump primed but the car would still not start. I have checked that fuel is getting to the engine etc.

I have also checked the fuses and wiring around the fuse box and everything seems in order there. Another point to add is that it will fire on easy start.

does anyone have any suggestions on the next steps to take?

Thanks!
 

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Perform diagnosis using Peugeot Planet / Diagbox.

There may be a problem underlying your issue and it would be a good starting point.
 

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What are you not telling us ?


As betty says start at the begining tell us what happened what you have done is the car beeping with key in and door open etc etc
 

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Discussion Starter #5
Hi,

Thanks for quick responses!

Car cut out while driving. I performed steps I mentioned in previous post as I could not hear the fuel pump priming when switching the ignition on. Fuel pump is only getting 8 volts which should be 12 volts. When running a wire directly to the fuel pump, it works and pumps fuel to the engine. However the car still won't start. Car fired up on easy start. There is a beep when key is in the ignotion and door is open.

Car says "active economy" on the dash when ignition is on. Does this mean anything?

Connecting a diagnostic machine to it gives an error saying it cannot link to ecu, so I think this could possibly be an ecu fault? Will a faulty ecu cause low voltage at the pump?

Thanks for the help so far guys! Bit baffled on this one!
 

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Some Diagnostic machines will not get connection to ecu in economy mode

Will come out of economy mode once started thats not the problem

Dont run wires to the pump you may well do more damage

The ecu is fed by a relay this also feeds the fuel pump it could be faulty it could also be a bad earth at the front somewhere
 

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Discussion Starter #7
Ah there's a relay for the pump and ecu is there? Where is this located? I've checked all the earths and they seem ok!

Thanks
 

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Discussion Starter #9
Thanks mate.

When I saw that there was low voltage at the pump I was looking for a relay but couldn't locate one. If anyone else knows where it is located it would be much appreciated!
 

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Discussion Starter #10
Problem fixed.. There was a wire in the cluster just infront of the radiator shorting. Fuse number 1 had blown and when I replaced the fuse smoke came from the radiator area.. Unraveled this cluster of wires, replaced fuse 1 and it started first turn.

Thanks to all that helped! Great forum
 
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