C5 2.2 Hdi Cold Running Problem Help

[chip-fat-fuel]

Ok Guys

 

Yet another C5 funny. My 2002 2.2 Hdi starts on the button every time however recently after starting with unlimited revs after about 30 sec the car coughs and spluters and wou'nt increase but sits around 1000 to 1500 revs no matter how far you depress the peadal! Go in and have a cuppa for 3 min and leave it ticking over and hey presto runs fine , during all this there are no warning lights up.

Took it to the main dealer who ran a diagnostic check no faults found ? now theres a suprise, its now been with them the last 3 days and they have no idea aparently the 'Master Technician' is away on the courses.

any one got any ideas??

[Johndouglas]

I don't know about HDI but if this had been XUD I'd say it was leaking a little bit of air into the fuel system over night.

[chip-fat-fuel]

I don't know about HDI but if this had been XUD I'd say it was leaking a little bit of air into the fuel system over night.

Hi thanks for the comment however it starts straight away if it was leaking i assume it would take a while to re-prime before it started?