Short Term Fuel Trim Sensor 2 99.2
Short Term Fuel Trim Sensor 2 99.2. It also wouldn't be expressed as bank 1 sensor 2, but only as bank one or bank two. Fuel trims are only measured using the primary o2/af sensor in the manifold.
It also was only 2 bolts, not 3. The short term fuel trim (stft) refers to immediate changes in fuel occurring several times per second. Obviously your car has a extremely lean condition hence why your car computer is adding fuel.
The P0420 Could Be Related To A Dead Sensor, But This Has.
Bank 1, sensor 2 (downstream sensor) is used to analyse the efficiency of the catalyst by comparing to sensor 1. 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 air/gas coming out. I just want to say thank you to all of you who offered advice!
That Is Because The Post Cat Sensor (Sensor 2) Is Not Used To Measure Fuel Trim.
Try swapping down stream sensors and see if the reading changes to b2s2. These are the conditions why your car can run lean: The long term fuel trims (ltft) are driven by.
Stft Is Mainly Relevant For B1 S1 And B2 S1 And That Will Vary Depending On How Well The Engine Is Running.
Failing to inspect the wiring of the component thought to be at fault It also was only 2 bolts, not 3. This change in fuel being added or taken away is called fuel trim.
Stft = Short Term Fuel Trim, Is Adjusted By The Pcm To Overcome.
The second o2 sensor ( behind the cat converter) doesn’t control the fuel trim thus the 99.2% reading is false. Stft and ltft means short term fuel trim and long term fuel trim and what the numbers are saying is that on bank 1 there is a problem and its running rich , bank 1 cus u have a v engine there are 2 banks , bank 1which is usually the left side as u look at the engine has somthing like a 02 sensor fault air leak injector fault, really u need to look at the live data of the. It also wouldn't be expressed as bank 1 sensor 2, but only as bank one or bank two.
#2 · Oct 9, 2019.
Integrator = short term fuel trim block learn = long term fuel trim the data stream represented by the scan tool is expressed as a numeric value of 0 to 255. #3 · oct 26, 2015. The first o2 sensor stft value was roughly that of the regular stft, however the second o2 sensor had a fuel trim of 99.2%.
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