PartsAvatar - Trouble OBD II Code P041D Solution (2024)

The codeP041D Exhaust Gas Recirculation Temperature Sensor B Circuit High is arrangedby the ECM if there is an upscale electrical value that is detected inside theEGR Temperature Sensor "B" circuit. Source the malfunction by readingup on a certain car repair manual to find out which "B" part islocated within the circuit for your needed request.

What causes this problem with the Exhaust Gas Recirculation Temperature Sensor
"B" Circuit High

• Failedor corroded EGR (Exhaust Gas Recirculation) temperature sensor
• LeakingEGR temperature sensor gasket
• Splitor Draining exhaust pipe when the sensor is mounted
• Scorchedwiring harness and/or sensor
• Defectivewire(s) (open, short to power, short to ground, etc.)
• Defectiveconnector
• ECM(Engine Control Module) problem
• Badconnections

1. Spark Plug- Oilcan cause a spark plug to go bad, and so can carbon build-up. Cracked distributor case, dirty fuel injectors, improperfuel/air mixture, clogged air filter element and other symptoms can causecarbon to build up on spark plugs and quickly cause spark plug problems. Fuelsystem injector cleaning costs between $50 and $80. Auto service mechanicsperform this type of service frequently, so it shouldn't take more than acouple hours at most.
2. Fuel Injectors- Asthe engine misfires, the engine can quickly overheat and pre-ignite the fuel mixture. A damagedfuel injector will not only cause issues with driving, but the effects willpersist even as the engine idles. Instead of a smooth engine idle, it will be roughand irregular when the fuel supply is
3. abrupt.If you suspect you have a damaged fuel injector, or suspect the fuel injectorsmay be failing, contact a professional mechanic.
4. Fuel PressureSensor - Afaulty fuel pressure sensor may send an inaccurate signal to the computer,which may cause the engine to experience hard starting. The engine may take afew cranks longer than normal to start and in more serious cases may not startat all. In addition, a faulty pressure sensor may upset the air fuel ratio andcause the vehicle to experience performance issues such as a decrease in power,acceleration, and fuel efficiency, and in some cases may even experiencestalling. If you suspect that your fuel pressure sensor may be having an issue,have the vehicle diagnosed by a professional technician.
5. Head Gasket- Itcan foul spark plugs and make your engine run poorly due to the deposits leftby burning coolant. Leaking coolant and combustion gases can cause hightemperature gradients leading to erosion of the leek area and possible cracking. Hiring amechanic to replace a cylinder-headgasket usually costs about $1,000, depending on the labour rate at the shopthat performs the work, and if the cylinder head itself needs to be machined orreplaced.
6. Mass Air FlowSensor -Signs of a bad MAF sensor may mimic problems such as low vacuum, lowcompression, or low fuel pressure due to a bad fuel pump. The most commonsymptoms of a malfunctioning MAF sensor include: The engine is hard to start or has troubleturning over. The engine drags or hesitates when idle or under load. Theaverage price for a new mass airflow sensor cost is typically around $100. Whenpurchasing a mass airflow sensor, you have the option of an originalmanufacturer part or an aftermarket part.
7. Oxygen Sensor-Vehicle engines that have a bad oxygen sensor often run irregularly or roughly.Oxygen sensors can control or contribute to many different engine functions,including fuel/air mixture, engine timing and engine combustion intervals. Afaulty oxygen sensor can disrupt any of these things and cause a rough engineidle. By repairing and adjusting the oxygen sensor yourself, you can bring thecost down to only $200.
8. Powertrain ControlModule - A corroding PCM could be unforeseento an extent that your vehicle will have issues starting or stalling when it’srunning. You will begin seeing that exhaust fumes have shorted during the car’srun, emissions system control signals will begin to fail, so with amalfunctioned PCM, have the vehicle inspected by a professional technician.

Ourcustomers are well cared about at Parts Avatar Canada, and we are geared tohelping you diagnose P041D code by giving out a list of some crucial symptoms,as they are described as follows:

Common Symptoms

• Falteredsmog or emissions state/provincial test
• Enginesounds (knocking, rattling, pinging, etc.)
• Noisierexhaust

The exhaust gasrecirculation (EGR) system is developed to push down levels of combustivetemperatures and lower oxides of nitrogen emissions (NOx). To overcome theseissues, exhaust gases are presented into the engine combustion chamber to coolthe combustive flames. On some vehicles we use an EGR temperature sensor as away to supervise the EGR operation. The powertrain control module (PCM) willuse this data to determine the rightful EGR controlling system.

Onpresently designed diesel engines, an EGR cooler is frequently used to cooldown the exhaust gas temperature before being accessed into the engine. The PCMis reliant on the EGR temperature sensors to make detection of the cooler’soccupation. Imperatively, a single temperature sensor is placed on the exhaustmanifold, when another is situated nearby the EGR valve.

Thetypical symptoms of a defective EGR temperature sensor also involve signs ofpinging, growing emissions and an illuminated Check Engine Light.

Locate the EGR temperature sensor

As away to prevent any danger and be professional in removing your EGR temperaturesensor you definitely need these handy tools:

• Free repairmanuals (optional)
• Protective gloves
• Safety glasses

TheEGR temperature sensor is typically mounted in the exhaust manifold or mountedclosely to the EGR valve.

Remove the EGR temperature sensor

• Disengagethe defective battery cable and put it aside.
• Removethe electrical connector by pushing down on the tab and sliding it off.
• Unscrewthe sensor using a ratchet or wrench.
• Removethe sensor.

Install the new EGR temperature sensor

• Installthe new sensor. Mount the new sensor in place.
• Screwin the new sensor by hand and then tighten it down using a ratchet or wrench.
• Reinstallthe electrical connector. Connect the electrical connector by sliding it intoplace.
• Reconnectthe defective battery cable and tighten it down.
• Youshould now have a new EGR temperature sensor installed.

Ifyou want to easily diagnose this fault code, then by all means follow thehelpful steps, which are mentioned below:

Basic Step #1

Firstplan of attack is to check for elements we can easily notice by simply visuallymonitoring the sensor and EGR system surround, seeking for exhaust leaks arevery important. Just to add, check-up the sensor and their harnesses while youare conducting the operation inside. Analyze what has been brought up aboutthose high temperatures. They just as likely cause destruction on plastic andrubber coated wires that should be checkup up methodically.

Basic Step #2

Inthe past, many of the EGR issues that occurred were forged by collected soot inthe exhaust system, including many other things, such as poor maintenance and low-qualityfuel. Whichever way we put it, it’s beneficial to properly clean your EGRsystem or even the temperature sensor. Be alert that sensors mounted within theexhaust systems might appear to be grasped when being loosened.

Remember,these sensors are subjugated in their role in significant temperature shifts,so even the slightest trace of heat when using Oxyacetylene torch, except thelayman, might help with loosening the sensor. Once sensor is taken off, usecarburetor cleaner or any same type of item to successfully sup up soot. Use awire brush to break up soot in all excessively built up places. Whenre-equipping the clean sensor, make sure to put on some anti-grab to thethreads in order to keep them from grabbing.

Basic Step #3

Confirmthe quality of the sensor by making measures of the exact electrical values tocompare with the particular values in demand by the manufacturer. Achieve thisby using your millimetres and follow the specified pinout exam process advised by themanufacturer.

Common mistakes when diagnosing the P041D code

• FailedEGR temperature sensor
• FailedPowertrain Control Module (PCM)
• Wiringproblem