HELLO ALL MY VECTRA IS STILL PLAYING UP ONLY 26K ON THE CLOCK THE ENGINE MANAGEMENT LIGHT IS ON THERES NO POWER AND ITS A REAL STRUGGLE TO GET IT TO START AND THERES A KNOCKING NOISE ASWELL ANYONE GOT ANY IDEAS ITS A 1.8 PETROL 2003 MODEL?,MY LOCAL STEALERS DONT HAVE A VACANCY AT THE MOMENT TO TAKE A LOOK AT IT SO I GOT A MOBILE MECHANIC TO TAKE A QUICK LOOK WITH A SCANNER AND ALL HE SAID WAS THERES A MISFIRE ON CYLINDER 3???.I HAV,NT USED IT SINCE THE LIGHT CAME ON AS I DONT WANT TO MAKE THINGS WORSE?,ANY IDEAS OR ADVICE FROM ANYONE WHO HAS HAD SIMILAR PROBS WOULD BE MUCH APPRECIATED AS I DESPERATELY NEED MY CAR BACK?,THANKS.