When is the p0138 code detected in an engine?
When is the p0138 code detected in an engine?
When is the P0138 code detected? The P0138 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively high for an extended period of time. The Heated Oxygen Sensor 2 (HO2S) (Rear O2 Sensor), after three-way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank.
What does p0141 mean on a check engine light?
You will likely notice poor fuel economy the illumination of the Check Engine Light. A code P0141 may mean that one or more of the following has happened: open or short to ground in the wiring harness O2 heater element resistance is high Internal short or open in the heater element
What does p0138 mean in a catalytic converter?
O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) What Does P0138 Mean? Oxygen sensor 2 is the downstream oxygen sensor in relationship to the catalytic converter. It measures the amount of air and fuel coming out of the catalytic converter to ensure the catalytic converter is functioning properly.
Is the downdraft O2 sensor still coding for p0141?
Ok, so far I have replaced the downdraft O2 sensor TWICE, replaced the catalytic convertor, replaced the updraft O2 sensor and done a set of plugs and wires. The car is still coding for p0141 downdraft O2 sensor failure. It is a 2000 Ford Focus SE. Can ANYONE tell me what else this could POSSIBLY…
What does the p0138 code on a car mean?
Code P0138 means that your powertrain control module (PCM) has detected that the voltage signal from the rear O2 sensor is too high. What is an Oxygen Sensor? All modern cars have at least two oxygen sensors.
What is an OBD-II trouble code on a car?
What is an OBD-II Trouble Code? On-Board-Diagnostic (OBD) trouble codes are one way your vehicle communicates with a mechanic. Every car built since 1996 has an OBD computer system that monitors and identifies issues. In particular, it looks for issues that may result in harmful and polluting emissions from exhaust gases.
What does DTC code p0141 stand for?
Code P0141 occurs when the powertrain control module tests the downstream heated oxygen sensor’s heater circuit on Bank 1 and detects a short in the circuit or excessive resistance in the heater circuit. This Diagnostic Trouble Code (DTC) does not need to be attended to immediately, but this DTC could result in more costly repairs in the future.
How is the p0141 O2 sensor trouble code?
How serious is the P0141 code? 1 The code is for the sensor behind the catalyst on the bank 1 of the engine. 2 O2 sensors are the fuel control feedback the ECM needs to properly control the injectors. 3 The ECM may stay in open loop until the O2 system is repaired or the O2 sensor starts working again.
What does p0137 mean on a check engine light?
P0137 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.
How to test trouble code p0132 ( Dodge 3.9L 5.2L )?
Vehicles with 2 upstream oxygen sensors, a P0132 DTC is identifying the one that’s on Bank 1. Bank 1 is the bank of cylinders that have cylinders 1, 3, 5, and 7 (5.2L and 5.9L V-8 engines) and 1, 3, and 5 (3.9L V-6 engines). Vehicles with only 1 upstream oxygen sensor, a P0132 DTC is identifying the only one that’s before the catalytic converter.
What does code p0140 02 mean on OBD-2?
If the signal received from rear (#2) O2 sensor indicates that the voltage has “stuck” between .425V to .474 V, the PCM determines this sensor is inactive and this code will set. Your check engine light (CEL), or malfuction indicator lamp (MIL) will be illuminated. There will not likely be any noticeable drivability problems other than the MIL.
What causes the p0138 code on a Dodge Dakota?
Here are the most common issues that cause the P0138 code in the Dodge Dakota. They are presented in order (somewhat) of most to least likely to cause the problem. Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0138 is triggering your service engine soon light.
What are the possible causes of a p0141 Dodge?
P0141 DODGE Possible Causes 1 Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 2 Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse 3 Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground 4 Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection 5 Faulty Engine Control Module (ECM)
How much does it cost to repair a p0138 Dodge?
The cost of diagnosing the P0138 DODGE code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0138 DODGE code detected?
What does code p0138 on O2 sensor mean?
A code P0138 may mean that one or more of the following has happened: 1 Faulty O2 sensor 2 Short to battery voltage in O2 sensor signal circuit 3 High fuel pressure (not as likely)
