Hi Everyone,I am having a problem with my brava 1600 16v (Dec 1999) V Reg
starting
all was ok when i parked it up xmas eve
went to start it boxing day it wouldnt fire up
continuous cranking engine overtime it fired up
stop engine after short journey it refused to start
AA mechanic told me faulty fuel pump
towed me home
i have over last 2 days got it to start about 3 times but each time i turn ign off it refuses to start
(i had a continuous noise coming from pump about 6 weeks ago)
now no noise not even when i turn ignition on i dont hear pump energising
i have pulled supply pipe off pump no fuel in the pipe at all
were would i find the relay for pump
could that be at fault /
thanks for any help.Dave
AA man removed main fuses in engine bulk head and banged fuel tank couple of times it started when he replaced fuses,but after turning ign off it failed to start again.....

Pump relay should be on bulkhead between ECU and brake reservoir. Looking into engine from front the R/H relay is the fuel pump.

Thanks Reddy4bed....i have replaced relay just in case still no power at fuel pump.
I have also directly wired pump from battery,but no power at pump end.
I also checked multi plug that fits onto pump,and couldnt get a reading ?
could it be anything else ?
Or should i suspect and blame the pump,has it would not start even when directly wired from battery,
but at nearly £200 it couldbe an expensive replacement if it isnt that.
thanks again for any help.

Further more my last reply....my neighbour directly wired pump up after removing it from fuel tank and it powered up.......can relay and fuel cut off/inhertia switch be by passed ? all help gladly appreiciated,thanks in advance....

driverhgv said:

can relay and fuel cut off/inhertia switch be by passed ?

Click to expand...

yes, by wiring the pump direct to the battery. if your neighbour got it working when removed, refit it and do the same, if the car then starts you know its either the relay or cut off switch or a wiring fault. the cut off switch is more likely (often) the problem.

jug said:

yes, by wiring the pump direct to the battery. if your neighbour got it working when removed, refit it and do the same, if the car then starts you know its either the relay or cut off switch or a wiring fault. the cut off switch is more likely (often) the problem.

Click to expand...

Hi Jug,cheers....well i have had mobile scanner man come at first he blamed ECU
then when he could read unit,he ssaid coil pack dead.....
yet all four plugs were sparking when i took them out in front of him and cranked engine over
then i explained about fuel pump
he found no current reaching pump has he said proberly cracked or split somewere between relay and pump,he cut off wire from below relay and at fuel pump then rewired,
all great started fine no problems driving it went for 10/12 mile drive returned home stopped engine retried to start but no......
nothing fuel pump working but no spark at coil
changed coil still no spark,pulled multi plug off coil pack checked middle pin no current with or without ignition on
also cranked engine for a time took plug out bone dry dont seem as if petrol getting through to spark plugs now either,
i need help here guys..............

Having similar problem with fuel pump system on punto 1.6 cabrio. Car would run for about 1/4 mile then die as if running on fuel in manifold only. Have not been able to start the motor since the 2nd time it died.

Having removed the pump ready to replace wired it directly to battery and found it to work fine. Checked voltage reaching fuel pump and continuity to ground (-) Negative continuity good to ground so rules out inertia switch. No voltage reaching pump connection tho. Changed fuel pump relay and still no go. Run out of daylight today but after studying wiring diagram it appears the positve feed to the injectors comes off of same relay as fuel pump. Gonna probe the injectors wiring to see if there is voltage reaching there... If so then the relay and connections must be ok.... i hope and the fault must be wiring between relay and pump connector. Did notice a knocking noise under car over rough pot holes/speed bumps etc, might be related to problem... If no voltage at injectors then next step backwards is the ECU.... Then i'm totally foxed. Busy going through my e-manual looking for a full wiring diagram...

hi,sounds just like mine was at first funny knocking noise from area around pump .then it died on an off....
then completly non starter,
mobile mechanic cut off live feed wire to fuel pump at the pump end and also same wire at relay box then rewired a new wire in
all started fine went for run in it great smooth drive
parked up went out 4 mins after,it wouldnt fire up again
now no spark at plugs or fuel on plugs yet,i take pipe off at pump fuel pours out,also now changed coil pack still no go.......
i think live wire for fuel pump from relay might be shared by something else
i know it goes to a junction box ? and maybe something else isnt recieving
current.
i really dont know,good luck,let me know if you sort anything out.thanks Dave:bang:

Will let you know how i get on.... You say you have taken off the pipe at the pump and fuel pours out... is this with the fuel pump running? If not you will find a vapour pressure build up that pressurises the tank and releases fuel as you describe. Undo filler cap to allow it to breath and try again. Don't know whether the bravo/a is the same as the punto but according to wiring diagrams i have, the fuel pump relay also feeds live to the injectors.... If this has been interupted then the pump would run but injectors wouldn't. Wouldn't explain why it ran after the mobile mechanic rewired it tho....

Got the punto running!!! After bypassing the fuel pump wiring and connecting direct to the battery to prime the system and trying to start it, no joy.... Probed the injectors wiring and found no voltage there either. Backtracked my previous visual checks. Alltho relays were clicking as expected still no sign of it starting.... till i wiggled the 15A fuse that protects the fuel injection system.... it spluttered...! Visually checked the fuse which looked ok but upon metering it, found it o/c. Fuse not blown but fractured. Can only assume that as engine bay warmed and cooled the fracture made and broke the circuit causing the fault. Replaced 15A fuse and hey presto!

If you haven't done already check your fuses with a meter for continuity.