Problem starting Mk7 when engine is warm/hot

[david.reid83]

Hey guys,


I am having some issues on my mk7 2.2 fwd 09, fitted a new clutch and DMF about 12 months ago, a new battery about 18 months ago new scv and prv about 12 months ago also had to change the starter due to a slight diesel leak from the prv was north on tight and dripped onto my starter and destroyed it about 9 months ago.

Out of the blue it would start like a trooper cold and as mentioned here do a short drive and it just turns over so I have replaced the scv and did the learns, tried the pilot and it failed on cylinder 4. Thinking it was the injector I did a leak test and they where all good.

So I’m told it could be the PRV when hot it’s possibly failing.

Could that be the case?


Dr


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[TheCake]

did you replace with genuine denso parts? as if not its likely that it has failed.
could be a bad seal on injector when were they last serviced? may be worth whipping them out give them a ream and clean and replace the copper washers, then re do the learns