Currently trying to get a 04 1.5dci clio to run/start, turns over but wont fire. Will run only with easy start been sprayed into the filter. As soon as you stop the engine dies. I've noticed alot of air bubbles in the fuel line. Mainly in coming off the line with the red connecter on the filter. (Think its a return to the tank?). I cant seem to bleed all the air out. Any ideas? Was thinking possible injector? ive let the diesel settle and doesnt seem to have any metal particals in etc.