Ian wright Posted November 11, 2020 Share Posted November 11, 2020 Hi my vw golf tsi 1.4 has just failed on the following. Exhaust hydrocarbon content after 2nd fast idle Exhaust monoxide content after 2nd fast idle Lambda reading after 2nd fast idle Can anyone tell me what parts have gone or worn out. My mot garage who I have uesd for a few years now have had to take it to the main dealer Ian Quote Link to comment Share on other sites More sharing options...
Volkswagen Owners Club Posted November 12, 2020 Share Posted November 12, 2020 I would certainly check all ignition components and also check for any exhaust leaks. Hydrocarbons are unburnt fuel particles e.g. the ignition (or engine) isn't burning all the fuel efficiently Quote Link to comment Share on other sites More sharing options...
Ian wright Posted November 12, 2020 Author Share Posted November 12, 2020 Thanks for that will get checked out I thought off crap petrol just found out tesco petrol not the best so going to use esso from now on. Thanks again Quote Link to comment Share on other sites More sharing options...
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