Clio ph1 172 not starting

[JoeDavies]

Hello, I have a clio 172 that doesn't get used alot, had a flat battery and has been sat a while. Put a new battery on it the other day, started and ran fine. Came to start it the other day. It cranks for as long as you hold the key, but won't start.
The immobiliser light flashes fast while cranking, is this normal?
If its not immobiliser I'm presuming it's crank sensor as the the pump is priming.

 

[JoeDavies]

It did start after a long while of getting in locking it unlocking, trying different things it randomly started and ran until I turned it off. Now won't start again!

 

[mintno1]

Hello, I have a clio 172 that doesn't get used alot, had a flat battery and has been sat a while. Put a new battery on it the other day, started and ran fine. Came to start it the other day. It cranks for as long as you hold the key, but won't start.
The immobiliser light flashes fast while cranking, is this normal?
If its not immobiliser I'm presuming it's crank sensor as the the pump is priming.

Rapid flashing immobiliser means there is a fault, had the same on my Ph1, had the key looked at by a couple of places and had a couple of bits replaced unfortunately still didn't work, also changed the immobiliser ring still no good. Am currently using an OBD bypass but will look to get to the bottom of it at some point.

You can have the immobiliser coded out by EFI (others may do it) or you can replace the fob, UCH, ECU from a working car. Any other questions just shout, where about's are you in the country?