Fuel Trim Long/Shot Average?
#1
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Fuel Trim Long/Shot Average?
I was wondering what the fuel trim on an Acura Cl 3.0 97 what’s it supposed to be. I have check everything from front and back and I notice my o2 sensor patter is really scattered I’m going to change it and I was wondering what the fuel trim should be my long is between .7 - 1.6 and my short is between 5- 15 and my o2 sensors go from .870 next would be .095 that’s not good anyone know what there fuel trim is like?
#2
O2 voltage should swap from low (0.1V) to high (0.8-0.9) quickly, 1-3 times per second depending on engine speed. Avg. should be around 0.45V. Your's looks OK to me.
Long term fuel trim (LTFT) near zero is OK also. It has to get up +/-10%+ before you look for a problem. STFT is not as important unless it shows a strong trend one way or other, which will affect LTFT.
good luck
Long term fuel trim (LTFT) near zero is OK also. It has to get up +/-10%+ before you look for a problem. STFT is not as important unless it shows a strong trend one way or other, which will affect LTFT.
good luck
#3
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thanks man my o2 sensor was bad the pattern is alot better now and the long term is on 0 which is great so i just filled up today will see how it goes ill let you know thanks.
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