non start

hello all im new on the forum.my c3 has just stopped working dead. Turns over fine but just dont fire up.ive got hold of a snap on scanner to read the eml but has no codes.so i started to read the data and i have no crank signal(rmp) or diesel rail pressure.but i dont want to spend load of money in a garage to get it repair.would rether do it my self.has any one had the proplem befor and could give me a few pionters

Hi bigphilly

If you can add a year, engine size etc, all those relevant bits can help.

But, no crank signal or low fuel pressure in the common rail are enough to inhibit starting of the engine.

So, something common to both those, yet simple? .. Have you checked both fuse boxes (glove box and engine bay) for blown fuses?

The fuse box layouts are in the tips section, here is one to start you off (the others are linked in that post)
https://citroenc3owners.com/citroen-c3-t ... -t339.html

Sorry it a 2003 1.4 diesel.ive check the fuse all seem to be there and no blow fuse.do u think water could have got in to the ecu.its been since we a loads of rain.ive got a crank sensor which im going to fit 2nite

do u think water could have got in to the ecu

This is unlikely and not a common fault on the C3. Water in the fuse box in the engine bay did affect some models though.

ive got a crank sensor which im going to fit 2nite

Its a pain to get the sensor out as you have to remove the pulley. The sensor is a sealed unit with no moving parts, unlikely to fail, although the electrical connection can get dirty and is worth cleaning.

I assume your 2003 1.4HDi Citroen C3 has only 8 valves?

Well ill put the fuse box out 2nite and see if its wet in side.i did pull the plug off the crank sensor and it was clean. I sprayed some wd40 in it to cleAn it out.my c3 is a 16v I think

It will be worth finding out for sure if its an 8valve or 16valver as they have different injection systems and engine ECUs. Your crank sensor and the common rail fuel pressure sensor both connect to the engine ECU, so we will need to find out before long.

How up to date is the software in the snap on scanner? The early C3 diesel is well known to be difficult to get the codes from with anything than the citroen workshop lexia tool.

Right ive just fitted a new crank sensor and check all the fuse and ive still have no luck.think im going.to have to bite the bullet and send it to a garage.mine is a 16v if it make it any good

I think its going to need a little more diagnosing before the problem can be pinpointed. There are several things that will stop the engine from starting and they should be logged as faults in the computer. Having the right tools to get all the codes will help and hopefully the right garage will have what's needed.

Let us know how you get on!