Toyota Yaris 2021 fuel mileage issue || fuel trim 27 % lean || no check light data analysis

When Lean DTCs Are Not Set
A lean running condition may manifest in driveability symptoms that have not (or not yet) triggered a DTC. Customer complaints may include symptoms such as decreased fuel economy, lack of power, hesitation on acceleration, backfiring through the intake, overheating, weird smells or other problems. Even though there may be no codes or even pending codes, your scan tool can still point you in the right direction if you see combined fuel trim corrections of more than 10%, whether positive or negative. (In this case, we’d expect them to be positive-i.e., adding fuel-although incorrect subtraction can also result in a lean condition.)

[@DuaneDonaldson]

Hello Desi EFI, you seemed to prove that the O2 sensor was stuck lean with your scan data, after the repairs, please show the same parameters to prove that it is repaired, this means the scan tool and at least the STFT are fluctuating with throttle activation, I feel this type of video showing repair verification will get you more viewers, as this is a sign of a good technician, God willing, cheers

[@F-Khan491]

MashaAllah you have very good technical knowledge about car diagnostics. Allah Paak apkay kaam main barkat ata' farmain aor apko taraqi ata' farmain. Ameen.

[@ajazahmed35]

Very Very nice bhai

[@habibbhatti872]

Walaikum Salam Sir Good work

[@salmansaeed5284]

good

[@mudasershah5798]

Mashallah Abdullah bay

[@javediqbal7605]

ماشاءاللہ

[@Gulzarjuicerparts]

Bhai shop kidr ha apki?

[@azaadghulam]

Bhai yaris ki standard short term aur long term values kya honi chahyay??

[@desiefiautoelectrician7150]

Long trim -4% short +-2%

[@quddusahmad3427]

Bhai apki workshop kis shehr me hai

[@desiefiautoelectrician7150]

منڈی صادق گنج بہاولنگر پنجاب پاکستان

[@mikmik7033]

No code fuel filter change Kiya Uske bad mileage low no code ok to run

[@desiefiautoelectrician7150]

پریشر چیک کریں پریشر کم ہوگا یا پھر فلٹر لیک ہوگا

[@eshalmalik839]

sir ap k num sir agar maje Karachi me karwani ho thek ap SE whatapps per bat kar kar reading dakh lun

[@desiefiautoelectrician7150]

Thek hy

[@suhailmunir1054]

Sir ap ka whatapp number mily ga

[@desiefiautoelectrician7150]

03068632831

[@eshalmalik839]

sir corolla 2015 1.3 ki short term aur long term kia honi chye