Does anyone know the LTFT % trip point for a 17545 - system too rich (add) DTC?
03-01-2009, 08:33 AM
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It does throw lean codes as well when it gets up around +18 to +20% partial throttle
I expect codes to show up in that range. The
17538 - Fuel Trim; Bank 2 (Mult): System too Lean seems to trip in the right place, but the
17545 - Fuel Trim: Bank 1 (Add): System too Rich trips too low.
I have added primary fuel to reduce partial throttle LTFT in the past, but makes IDLE even richer. I will go back to that as it better to not be so lean.
I will check the N80 and CTS as well.
Thanks,
Bruce
17538 - Fuel Trim; Bank 2 (Mult): System too Lean seems to trip in the right place, but the
17545 - Fuel Trim: Bank 1 (Add): System too Rich trips too low.
I have added primary fuel to reduce partial throttle LTFT in the past, but makes IDLE even richer. I will go back to that as it better to not be so lean.
I will check the N80 and CTS as well.
Thanks,
Bruce
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