Clio Williams 1 won't start

[Flan]

TDC sensor?

Test for continuity across it.

you mean the cps on the box, i know they sometimes fail

will try and get over on saturday, can't do much in the dark have you ordered a new coilpack or any bits.

Flan

[Willy1]

have you ordered a new coilpack or any bits.

Flan

Thanks Flan!

I have a new coil pack on reserve locally....nothing else.

[stan]

yes, crank position/top-dead centre sensor

[Flan]

yes, crank position/top-dead centre sensor

thought so. Stan your just to technical sometimes

i might have a spare one knocking about somewhere ill have to have a look...


ps i hate electrics :P

[Willy1]

My ex-mechanic friend has been looking into this and this is the story so far....

- Cambelt has not snapped.
- The rotor under the dizzy cap does spin when cranked.
- Taking the battery off for over 2 hours and putting back on has not helped.
- Reinstalling ECU has not helped after over a day of it sitting by the radiator.
- Confident its not bad earths as he believes that there would be atleast some attempt to spark but there is no spark at all.
- TDC/CPS is fine.
- Coil pack replaced - same problem.
- Live signal is getting to the coil and out of the HT lead.

The suspected immobiliser switch is completely disconnected however there was an uncovered loom which still needs to be investigated.

However the main suspicion at present lies with the ECU.

To understand the ECU better can anyone answer the following:

1. If the ECU was faulty, would a live current be able to get to the coil?
2. Believe that water getting into the ECU is a common issue, is corrosion the only sign for this situation? In other words should we rule this out if there is no corrosion.
3. Will diagnostics services establish an ECU fault - ie getting someone to plug a laptop in?

Any other suggestions would be greatly appreciated.

Also, if anyone has a working ECU for the Williams 1 they would like to sell, please PM me details so I have all options open!

[Willy1]

........actually forget that!

ECU was checked by Autocraft in Luton (only £30!) and results were fine.

Tried earthing the ignition lock relay to the battery terminal (advice courtesy of Purple) - no luck however this time when turning there was a rapid quiet clicking sound (not the starter motor).

Next up on the drawing board........the crank sensor.

[Willy1]

Also replaced the ignition lock relay (403) - no luck

[northy]

what alarm is fitted to the car ?

when u turn it over are you getting fuel from the pump ???

Does its sound as if its trying to start or does it turn over slowly ????

[Purple]

no luck however this time when turning there was a rapid quiet clicking sound (not the starter motor).

If it's rapid clicking, I think gunnergibson had that too. Go search for his posts round about Sep '05 to Mar '06. Renault electrics - heartbreaking, ain't it? But when it's all working, you wonder what all the fuss was about.

[cliokiz]

Might seem daft but have you checked the fuses in the engine bay?

Mine wouldn't start today and it was due to a blown fuse..