Why are Changan Alsvin users in Pakistan frequently facing sensor malfunctions, especially in the throttle and oxygen sensors?

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Why are Changan Alsvin users in Pakistan frequently facing sensor malfunctions, especially in the throttle and oxygen sensors?

Many owners report check engine lights due to faulty sensors. Is this a result of poor sensor quality, improper calibration, o r dust/fuel contamination?

Sirat Ul Jinan asked on 18 Jun 2025 13:08:53 pm

1 Answer

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Car Mechanic Expert - on 18 Jun 2025 13:25:39 pm

Many Pakistani Alsvin owners report check engine lights caused by:

Poor-quality sensors especially throttle position and oxygen sensors that wear out quickly.

Dust contamination in urban and rural driving environments.

Improper fuel-air mixture due to adulterated fuel damaging the oxygen sensor.

Weak factory calibration from Changan leading to early sensor errors.

The TPS and O₂ sensors are particularly sensitive to both carbon buildup and voltage irregularities.