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International Automotive Technicians Network
Negative Fuel Trims
Posted to Technical Discussion Forum on 8/4/2013 32 Replies

Hello TDF,

This vehicle has 2 new A/F ratio sensor put on bank 1 and 2. After resetting the KAM and driven until the monitors are completed the fuel trims are at -9 LTFT on both banks at idle. STFT is normal, around 0 to 3 range. So I took it for a test driv... Login to read more.

32 Replies Received (View Replies)

 

car Vehicle Data

1999 Lexus ES300 3.0L

Engine3.0 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

1999 Lexus ES300 3.0L

Engine3.0 L
Trans4-speed Automatic (Electronic)