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Thread: STFT when not in closed loop

  1. #1

    STFT when not in closed loop

    I have an issue during start up where the STFT's are adjusting fuel even though the car has not reach the temperature required to enable closed loop. It normally goes like this: I start the car cold, throw it in drive and over the next 30 seconds the AFR gets richer and richer. The STFT increase and max out at 50%. I limp the car along until it reaches 130F where I have CL enabled. Then the car operates fine. If I completely disable CL the car warms up fine without any issues. On the log attached I tested this by forcing CL disabled (even though it already was) using the special functions through the scanner at around 00:00:59.400 mark. Any ideas?
    Last edited by nnicholas; 11-10-2019 at 04:36 PM.

  2. #2
    Nevermind, I had STFT Open Loop Enabled. Disabling this fixed the problem.