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2012 Hyundai Veloster P2191 Lean Under Load Fault: Diagnosis and Fix After Fuel Pressure Fluctuations

Model: 2012 Hyundai Veloster Fault Code: P2191 Posted: 2018-05-21 18:50

Hello everyone, first time posting here — apologies if I'm missing any forum etiquette! I've worked as a mechanic in new car dealerships for about 15 years, primarily specializing in Jaguar, Rover, and BMW vehicles. Currently, my wife's 2012 Hyundai Veloster is giving me a persistent P219

Related fault codes

P2191

Comments (1)

Anonymous 2023-04-24 11:20

Hi there — I'm experiencing the same issue with my 2012 Hyundai Sonata. I've replaced both O2 sensors, MAF sensor, PCV valve, and spark plugs. The car runs fine most of the time, but the check engine light remains on. Anyone have a solution for this P2191 lean under load fault? I'm particularly concerned about fuel pressure instability during idle and acceleration.