Скачать или смотреть P1151 Code: Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Lean (Bank 2 Sensor 1)

P1151 - Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean (Bank 2)
. This diagnostic trouble code means the upstream oxygen sensor on Bank 2 is detecting a constant lean condition instead of switching between rich and lean as expected. Common causes of P1151 include a faulty oxygen sensor, vacuum leaks, exhaust leaks before the O2 sensor, fuel delivery problems (weak fuel pump, dirty injectors, clogged fuel filter), or in rare cases, a PCM issue. Symptoms may include the check engine light, rough idle, poor acceleration, reduced fuel economy, and sometimes engine hesitation. This video is for educational purposes only and should not replace professional diagnostics. Always consult a qualified technician before replacing parts. Understanding the P1151 code can help you avoid unnecessary repairs and correctly identify lean condition problems.

p1151 ford code, p1151 bank 2 sensor 1, p1151 oxygen sensor lean, p1151 ho2s switch issue, p1151 causes and symptoms, p1151 vacuum leak, p1151 fuel delivery problem, how to fix p1151, p1151 check engine light, p1151 ford explorer f150 ranger