What should a good downstream O2 sensor read?
What should a good downstream O2 sensor read? The Downstream Oxygen Sensor (Oxygen Sensor 2) Therefore, the downstream oxygen sensor (sensor 2) should produce a steady voltage of approximately 0.45 volts. Do downstream O2 sensors affect fuel trims? Long-term fuel trims are measured over longer time intervals by oxygen -, or air fuel ratio sensors downstream of the catalytic converter, and in practice, the signal voltages these sensors generate are not directly implicated in fuel delivery strategies, although there some exceptions to this rule. What is a normal fuel trim reading? Values normally range from negative 10 percent to positive...