DTC U0199 Cadillac

Fuel System Lean (Bank 1)

Fuel System Lean (Bank 1)

Description

Engine running in closed loop, IAT Sensor signal over 20ºF, altitude less than 8,000 feet, and the PCM detected too large an amount of Fuel Trim correction due to a lean A F condition.

Video Guide

Duration: PT4M19S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: U0199
  • Brand: Cadillac
Back to Blog