Those are the catalyst monitors see where it says b1 s2 that means bank 1 sensor 2 you want to see a high % there as it shows no unburned fuel. Stft is known as a volatile value. Presumably the readings for b1 and b2 should. The 1.75 is the difference between the. Web srf in subaru means steering responsive fog lights. Web you haven't provided how you calculated the frequency resolution, but here is what it should be: Web to enable the correct air/fuel ratio, (stoichiometry = 14.7:1), the system uses stft to keep the system as close as possible to this figure. Web also, the post cat o2 should be almost rock steady if the cat is functioning correctly. #3 · oct 26, 2015. Web stft b1s2 means short term fuel trim bank 1 sensor 2, which is the downstream 02 sensor from the catalytic converter.
The ecu's basically telling you that the catalytic. Web joined sep 25, 2011. Frequency_resolution = sampling_rate / nfft; #3 · oct 26, 2015. 3.1% for some reason when selecting stft b2 on my scanning device, it displays the above (99.2%) which. That is because the post cat sensor (sensor 2) is not used to measure fuel trim. Web ltft and stft are percentages which represent the adjustment to the fuel injector pulse width. Stft is known as a volatile value. The exhaust stream is monitored. Web too much voltage can cause components to overheat and potentially suffer damage. The 1.75 is the difference between the.
