Stone Monkey Posted March 5, 2021 Share Posted March 5, 2021 New to the forum. Advice wanted Hello I recently bought a 2010 Subaru Impreza hatchback Diesel online due to Covid. Great in the snow we had, but its producing large amounts of black smoke and using too much fuel. Not sure where to start, fuel pump, fuel injectors, EGR valve, DPF, engine flush! Have changed the air filter and added Redex. If anyone has an knowledge of what I should do first to solve the issue it would be hugely appreciated. Cheers Stephen Quote Link to comment Share on other sites More sharing options...
Jay762 Posted March 8, 2021 Share Posted March 8, 2021 Wotcha and welcome - Can you check for any engine codes? It sounds like its running really rich, I would check the MAF sensor Quote Link to comment Share on other sites More sharing options...
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