bad starting and misfiring

[pun303]

got a superb 1.9 tdi 2010 it has difficulty starting on initial start up after about a mile driving it starts fine then when fully warmed it doesn't like to start it tries to but won't get going have to crank it over about 10 times before it start also runs really rough until I give it a bit of gas and I get an occasional misfire on idle

[Doctle Odd]

Get a diagnostic scan

[pun303]

have had a scan done by my mobile mechanic nothing showing on his scan tool

[Doctle Odd]

What did he scan with? VAG cars don't always work well with OBD scan tools, has it had a fuel filter recently?

[pun303]

he used a snap on scan tool


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[Doctle Odd]

Has the DPF light been on, does it regenerate? Has it had any work done recently?

[pun303]

don't have a dpf on this model I'll get another vag scan done


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[niall campbell]

drive the car to a quiet bit of road, drive the car in 2nd gear for a few hundred yards and keep the revs hard down to just under the red and blast out all the crap in the exhaust. You need to do this once in a blue moon.

Also change the diesel filter

When you turn on ignition, always wait for the glow plugs light to go out before starting. It sounds like the glow plugs have gone

[pun303]

wouldn't a glow plug come up on diagnostic check and I give it a good thrashing occasionally anyway as its a cab and needs clearing out now and again thanks


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[pun303]

it is showing poor fuel delivery on injector 2 and very bad delivery on injector 4 so think I will have to change injectors


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[pun303]

pun303 - VW Audi Forum(7545169) on Vimeo (https://vimeo.com/126423707)
just wondered if anyone could interpret this live data


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