Bad injector?

[Dean82]

I hope I’ve posted this in the right thread, new here but need some advice.
My wife has a a180 1.5 diesel 2014 with 38,000 miles on it.
Recently bought from big motoring world.
The problem is when it starts from cold it’s very lumpy and idol is up and down, and the occasional puff of white smoke. It lasts for about 3/5 mins, but also hesitates at times trying to pull away. My first thoughts maybe a bad injector. I took it back to big motoring world to look at it. And they come back with there isn’t a problem? They gave me a print out of what I can assume the injectors are putting out? ( sorry if that’s the wrong term, all above my head) has anyone have an idea if it looks right? I’ll attach the print out I was given
Thankyou in advance

 

[mersum1es]

They should test it at conditions where problem exist! Coolant is over 60 so deffo not at cold start... yes, test is planned to do at running temp but same rules apply at cold conditions. Engine is Renault so I cannot comment values (at least they are different than bit older mercedes diesels, there limit is +5). Also cold start injector leak test should be done (I assume Renault begaves same than MB there too lol)

 

[bembo449]

funny I thought the 1.5 was a Peugeot lump , they need to spill test the injectors not just see what they are doing electronically

 

[Kev555]

From my foggy memory I had issues with my own injectors at start of the year. Them values dont tell me injectors are ok as mine looked similar values but at least one of mine was faulty if not two. live values are better to look at. some of the experts will be along to look shortly as I could be totally wrong about them values

 

[bembo449]

just for reference , I have a 1.6hdi citroen van , it white smokes and judders like a bugger when stone cold but once warm its spot on , needs injector 3 refurbing

 

[Dean82]

thankyou for the reply’s, they did say they done a cold test,I didn’t even notice the coolant temp when I picked it up, but no paper work to show this, so will get back in touch with them for the results of that if they actually did it at all! I was told they should have done something called a flow test? ( if that’s not what this is?) It doesn’t smoke too much and judder as such just a real lumpy idol more and a puff of smoke if revved.
Is it possible to hear wether an injector has gone up the shoot? By the old screwdriver trick?