The trouble codes that you have downloaded have not arisen due to the use, or non-use, of the fuel additive. Code P0841 (https://www.yourmechanic.com/article/p0841-obd-ii-trouble-code-transmission-fluid-pressure-sensor-switch-a-circuit-range-performance-by-valerie-johnston) simply refers to an abnormality in the transmission fluid pressure sensor circuit. Possible causes of that code...
Hi and thanks for your question. The code P0139 means that the secondary oxygen sensor on bank 1 (the sensor after the catalytic converter) is not damaged, but rather the engine air fuel ratio is not being adjusted by the...
Hi there. If this vehicle is having an idle concern, I have to ask if you may be having a stumble or stall issue when coming to a stop. If so, your vehicle may be covered under a special service...
No, it is not the catalyst. The P0139 code (https://www.yourmechanic.com/article/p0139-obd-ii-trouble-code-o2-sensor-circuit-slow-response-bank-1-sensor-2) is for the O2 sensor before the catalyst. The code is illuminated when the engine control module is testing the O2 sensor and it cuts the fuel to see if...
