What does the p2271 O2 sensor signal mean?
This code indicates the downstream O2 (oxygen sensor) on bank 1 has failed an onboard test run by the PCM (powertrain control module). Bank 1 is the set of cylinders that includes the number one cylinder. What causes the P2271 code?
How does a mechanic diagnose the p2271 trouble code?
Downstream O2 sensors, as indicated by the sensor 2 position, are used to determine if the catalytic converter is operating efficiently. It will not have any effect on drivability of the vehicle. How does a mechanic diagnose the P2271 code?
What does p2271 mean in Powertrain Control Module?
P2271 Meaning. The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits.
What happens if p2231 sensor signal is shorted?
If the PCM detects a degree of voltage that is not commiserate with acceptable parameters, a P2231 will be stored and a malfunction indicator lamp (MIL) may be illuminated. Most vehicles will require multiple ignition cycles (with a failure) for MIL illumination. A typical oxygen sensor: What is the severity of this DTC?
What is the DTC code for the p2271 sensor?
This P2271 diagnostic trouble code (DTC) refers to the post-catalytic converter O2 (oxygen) sensor on bank #1, sensor #2. This post-cat sensor is used for monitoring the efficiency of the catalytic converter. The converter’s job is to reduce emissions out the tailpipe.
When does the p2271 O2 sensor signal biased / stuck rich?
The converter’s job is to reduce emissions out the tailpipe. When the signal from the O2 sensor is detected by the PCM as being stuck Rich or biased Rich, this DTC is set. The P2271 DTC refers to downstream sensor (after the catalytic converter), sensor #2 on bank #1. Bank #1 is the side of the engine that contains cylinder #1.
P2271 Meaning. The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits.
Where is Bank 2 on the p2271 DTC?
The P2271 DTC refers to downstream sensor (after the catalytic converter), sensor #2 on bank #1. Bank #1 is the side of the engine that contains cylinder #1. There may be a third sensor downstream, if that is the problem, a P2275 is set.