SV8 Persistent Codes P0171 & P0174
#22
Had the same problem on 2006 Landrover LR3 SE. It is a vacuum leak somewhere on the engine. In my case it was the gasket on the Brake booster at firewall.
Plenty of YouTube videos on how to search for it using either smoke blown into intake using a cigar or when engine is running, spray a bit of propane around various vacuum connections. Hope this helps.
Plenty of YouTube videos on how to search for it using either smoke blown into intake using a cigar or when engine is running, spray a bit of propane around various vacuum connections. Hope this helps.
#23
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