Hi,

I am getting really desperate now. I have had my VRSfor 4 months now and love it. Just over a month ago I went to fill her up and like an idiot put petrol in (at the time I thought I would treat her to the Premium Stuff....right to the top!) I got a few hundred metres dowm the road, realised what I'd done and thus stopped and was recovered by a local vechicle technition company.

They did everything they needed to and within a day she was fine, all lines cleaned, as was the tank with a new fuel filter. She seemed to run fine for a week. I was in Wales with No signal on my phone, No local inhabitance and No idea as to why my car cut out and wouldn't start. At that point the oil light came on and it almost appeared that the immobiliser had cut in as when I turned the ignition the starter motor turned but the engine showed no sign of wanting to turn over. After a long run to a top of a hill I managed to call the RAC who when checking the car over found no faults and eventually got it started just by continually turning it over.

A week later this happened again, and after about 20 mins it started again and it has been doing it ever since. Sometime when I start the car it takes a long time to kick in, and other times the engine just cuts out whilst i'm driving, which can be scary when you do approx 800-1000 motorway miles a week.

I have spent hours on here and see that there are many suggestions to problems like this one that other owners have experienced. The most common of which seems to be the suggestion that the fuel pump relay may have come unseated from its socket.

I must mention that I have had 2 companies run a diag and found no fault codes!!

Please can some one give me advice as to where the fuel pump relay is located and how I get to it to check it as I am new to this. If anyone else has any ideas as to other possible reasons or causes for this engine behaviour, I welcome your replies and assistance.

Thanks

Put bluntly, you may have FUBARed the injection system by running the car on petrol for "a few hundred metres". If so, then the reason it didn't show immediately was that you took most of the case hardening off the cams, but it took a bit more running before the lobes flattened out. How much petrol did you actually put into how much diesel?

I seriously hope that you're lucky and I'm wrong, but advise you to be prepared for me being right.

How trustworthy is the garage you took it to? Could be that the injector pump, fuel lines and filter have not been flushed with enough diesel, I would check the fuel filter has been changed first, the date of manufacture is stamped on the top.

As I recently filled my VRS with petrol, i went through this problem too.

you could possibly have an air leak in the fuel system , this is allowing the fuel to drain back to the tank, hence long cranking, but as it has an electric pump in the tank , this shouldn't really occur , unless of course, the pump is not working

you should be able to hear the pump prime the system when you turn the ignition on

every three months i put 10 litres of petrol into my vrs and fill her with diesel boost my mpg by 8or9 miel to the gallon, but this leaves it a bit harder to start, to do with the petrol needing a spark to ignite rather than compression

you could possibly have an air leak in the fuel system , this is allowing the fuel to drain back to the tank, hence long cranking, but as it has an electric pump in the tank , this shouldn't really occur , unless of course, the pump is not working

you should be able to hear the pump prime the system when you turn the ignition on

this is exactly what mines doing m8,causing long cranks,i have to prime it about 5 times to allow enough fuel to come through to start it

basically does it need a new fuel pump or get the system tested for the leaks?