clio 2 1.4 s wont start

[JohnR40]

hi my clio wont start have replaced the crank sensor but with more checking it seems the fuel pump is not getting a feed . anyone know what fuse or relay covers that ?

 

[MicKPM]

You need to start at the very beginning. When you put the key in the ignition and turn it what does the red LED do?

Flash
Stay on solid
Come on and then go out

Mick

 

[JohnR40]

hi Mick , red led flashes as normal .. i put key in turn on ignition and led goes solid then out

 

[MicKPM]

Okay so we know the key and all systems are functioning fine. You say you cannot hear the fuel pump prime. Does your Clio have a crash impact/inertia cut-off switch in the engine bay area?

They look like this:

If so, press it... Does it click or feel solid? If not do you have a volt meter or power probe to hand?

Mick

 

[JohnR40]

the cut off switch feels solid and i have a volt meter ready

 

[JohnR40]

hi Mick would a damaged ecu stop the fuel pump working ?

 

[MicKPM]

Yes but i'll level with you... I've not seen many damaged Sirus 32 ECM's before that weren't caused by people putting jump leads on the wrong way and even then its becuase they were stupid/persistant.

You've more than likely got either a wiring/component or an earthing fault... time to start fault finding or take it somewhere competant. I'd offer my services but if you're in Motherwell, its a smidge far to go. I'd start with a good diagnostic test (Not just a code reading session) and thencheck to see if other items are getting power in the engine bay (Injectors, MAP, Ignition coil(s)) and go from there.

Mick

 

[JohnR40]

Mick can you tell me does the fuel pump get fed with 12 volts or 5 volts ? i got a 5 volt feed to pump

 

[KFRRS94]

Try your TDC sensor mate. That's what it was with mine, same car.

Edit: Cheap & easy to do yourself as well.

 

[JohnR40]

that was first part to be replaced ... just need to know what voltage the pump works on .. many thanks for the input