Clio won't start! :(

[Peter_]

Hi guys, I have a 172 ph1 and it has been sat for about 4weeks and I went to start it ready to sort some bits out for mot, and it won't start? It has a good battery and turns over fine and I can hear the fuel pump prime.
The immobiliser light goes out as it should but there is no spark,
its not the coil pack, leads or spark plugs its just not turning on so to say lol.
Any help would be much appreciated

thanks, Pete

 

[DannyR]

TDC/CPS Sensor

 

[Peter_]

And that is? Haha
thanks for your quick reply

 

[DannyR]

Crank position sensor.

Have a little search, very common.

 

[Peter_]

Okay thanks, ill give a new one a go

 

[The Chubby Pirate]

Take it off and sand the pin down before you buy another one mate!

 

[MikeClio172SPT]

No spark.... normally means Crank position sensor as said. No fuel will be injected either as the CPS tells the ECU when to fire the injectors.
If you have access to Diags to... even better.

 

[Sean6545]

Fuel pump relay possibly. The fuel pump and coil pack are on the same circuit.does the fuel pump prime when you turn the ignition on?

 

[P17 TOO]

How would you know if it's priming??

 

[TheEvilGiraffe]

See the big red button by the battery ?

Whack it. HARD.

 

[Peter_]

Iv hit the big red button lol

How would you know if it's priming??

Is that not what I can hear when you turn the ignition on? The fuel pump

 

[P17 TOO]

Big red button??

 

[Peter_]

It's the fuel reset, if I'm correct

 

[Sean6545]

Yes you should hear a humming noise from under the rear seat when you turn the ignition on.

 

[Peter_]

Right guys I got a new cps sensor and I got the updated one but it didn't come with the blue bit of the loom as well, but my black plug plugs in to it anyway so surly I don't need it? :S

 

[DannyR]

If the plug fits its possibly been replaced before

 

[Peter_]

But my car still won't start

 

[P17 TOO]

Same as mine then!

 

[DannyR]

Phil, Does your trip computer reset everytime car is started too? Wondering if that's a symptom.

 

[P17 TOO]

You mean when it was actually running??

 

[DannyR]

Yes, incase mines leading up to not going at all!

 

[P17 TOO]

No it didn't then as I'm usually quite aware of what miles I've done to a tank and that...

Take it yours is???

 

[DannyR]

Yes it is, I'm changing the battery as I'm sure that's the root if that problem which may solve the non starting issue too!

 

[Carlv8415]

Have you tried to bump start it ?

 

[Matt@codered]

Right guys I got a new cps sensor and I got the updated one but it didn't come with the blue bit of the loom as well, but my black plug plugs in to it anyway so surly I don't need it? :S

Genuine Renault one? Shouldn't be able to plug the black original plug into a genuine blue-updated one. The reason for the updated sensor and loom is Renault used silver coatings on the original connectors, its the best conductor, but, it tarnishes so will build a resistance, enough for the management to not see its signal.
The new blue loom and sensor have gold plated connectors, not such a good conductor as silver, but will not tarnish.

 

[Peter_]

No I don't think it's genuine renault

 

[Sean6545]

You can't fit the old connector onto the new sensor. The pins will be the wrong way round and it physically won't push home.

 

[TurboTaylor]

Possibly a problem with the ECU. Get a diagnostic kit on it and see if it can read the ECU to tell you what is at fault, they only cost between £10-£15 on eBay!

 

[Matt@codered]

Or do a fault test for free using your dash panel?

 

[Matt@codered]

It's more than likely the tdc sensor and loom that is needed, genuine items fitted correctly.
Its unlikely the injection computer will go wrong from standing for 4 weeks.

 

[Jack-C]

It's more than likely the tdc sensor and loom that is needed

I had exactly the same promlems on mine! Would turn over but not run. Matt@codered fitted the updated tdc sensor and its been perfect ever since.

 

[Peter_]

Okay guys ill get a proper one lol. How much is it from renault?

 

[Carlv8415]

Difference between the new style one and the old style is the old one only has one pickup point where the new one has 4. mine broke not long ago just put the old style on as it was about £30 cheaper and works. also the new one has a blue connector and the old is black.