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AutocornerdPros
Pakistan
เข้าร่วมเมื่อ 15 พ.ค. 2024
AutocornerdPros is all about helping you fix your car problems yourself. We make easy-to-follow videos explaining different car issues, like why your check engine light is on, what to do if your car won't start, or where those weird noises and vibrations are coming from. No talking heads, just straight-up visuals and step-by-step guides to diagnose and troubleshoot the problem. Whether you're a DIY car nut or just trying to figure out what's going on with your ride, our videos break it down in a simple way. From engine overheating to maintenance tips, we've got you covered for all your auto repair and troubleshooting needs!
6 WARNING Signs of a BAD MAF Sensor | How to Test & Fix a Faulty MAF Sensor
Does your car lack power, idle rough, or get poor gas mileage? Your Mass Air Flow (MAF) sensor might be malfunctioning!
The MAF sensor plays a crucial role in maintaining optimal engine performance and fuel efficiency. In this video, we'll delve into common symptoms, causes, and solutions for MAF sensor problems.
Symptoms of a Bad MAF Sensor:
Reduced Power: Struggles to accelerate smoothly due to inaccurate airflow readings.
Rough Idle and Shaking: Engine trembles and vibrates at idle due to improper air-fuel mixture.
Decreased Fuel Economy: Excessive fuel injected into the engine due to faulty sensor readings.
Check Engine Light: Illuminated with trouble codes P0100 to P0103, indicating issues with the MAF sensor circuit.
Black Smoke from Tailpipe: Rich fuel mixture caused by excessive fuel injection.
Limp Mode: Engine power limited to prevent further damage from inefficient combustion.
Causes of MAF Sensor Failure:
Dust and Dirt Accumulation: Clogged sensor wires lead to inaccurate readings.
Oil Coating: Oil vapors from leaks or degraded air filters coat the sensor, affecting its operation.
Wiring and Connector Issues: Faulty wiring or damaged connectors disrupt communication between the sensor and the computer.
Vacuum Leaks, Intake Boot Damage, Clogged Air Filters: Restrict airflow, impacting sensor readings.
Testing and Cleaning a MAF Sensor:
Voltage Test: Use a voltmeter to measure voltage output at idle and increased RPMs.
Unplug Test: If engine performance remains unchanged, the sensor might be faulty.
Cleaning: Use MAF sensor cleaner to remove dirt and oil buildup (avoid touching the sensor wires).
Replacing a MAF Sensor:
Relatively simple job, costing between $80 and $400 depending on the vehicle.
Disconnect the battery before removing the old sensor.
Reset the ECU using an OBD2 scan tool after replacement.
Read this step-by-step guide on troubleshooting MAF sensor problems:
www.autocornerd.com/check-engine-light-on-but-car-runs-fine/#3_Malfunctioning_Mass_Airflow_Sensor_Affecting_Air-Fuel_Ratio
#MAFsensor #CheckEngineLight #CarRepair #AutoRepair #FuelEconomy
Timecode:
00:00:00 - Introduction
00:00:05 - Symptoms, causes, and solutions
00:00:10 - M-A-F sensor location and function
00:00:15 - Air measurement and signals
00:00:20 - Incorrect air-fuel mixture
00:00:30 - Common symptoms of M-A-F sensor issues
00:00:35 - Symptom 1: Lack of power
00:00:54 - Symptom 2: Rough idle and shaking
00:01:17 - Symptom 3: Reduced fuel economy
00:02:01 - Symptom 4: Check engine light
00:02:13 - Symptom 5: Black smoke
00:02:26 - Symptom 6: Limp mode
00:02:55 - Causes of M-A-F sensor failure
00:03:03 - Dust and dirt accumulation
00:03:12 - Oil coating
00:03:21 - Wiring and connector issues
00:03:43 - Vacuum leaks and intake boot damage
00:03:59 - Testing a bad M-A-F sensor
00:04:03 - Using a voltmeter
00:04:19 - Voltage output range
00:04:24 - Unplugging the M-A-F sensor
00:04:33 - Cleaning a dirty M-A-F sensor
00:04:37 - M-A-F sensor cleaner usage
00:04:47 - Oil-based air filters
00:05:00 - Replacing a faulty M-A-F sensor
00:05:06 - Cleaning the sensor
00:05:10 - Disconnecting battery terminals
00:05:19 - Resetting the ECU
00:05:24 - Conclusion and guide link
The MAF sensor plays a crucial role in maintaining optimal engine performance and fuel efficiency. In this video, we'll delve into common symptoms, causes, and solutions for MAF sensor problems.
Symptoms of a Bad MAF Sensor:
Reduced Power: Struggles to accelerate smoothly due to inaccurate airflow readings.
Rough Idle and Shaking: Engine trembles and vibrates at idle due to improper air-fuel mixture.
Decreased Fuel Economy: Excessive fuel injected into the engine due to faulty sensor readings.
Check Engine Light: Illuminated with trouble codes P0100 to P0103, indicating issues with the MAF sensor circuit.
Black Smoke from Tailpipe: Rich fuel mixture caused by excessive fuel injection.
Limp Mode: Engine power limited to prevent further damage from inefficient combustion.
Causes of MAF Sensor Failure:
Dust and Dirt Accumulation: Clogged sensor wires lead to inaccurate readings.
Oil Coating: Oil vapors from leaks or degraded air filters coat the sensor, affecting its operation.
Wiring and Connector Issues: Faulty wiring or damaged connectors disrupt communication between the sensor and the computer.
Vacuum Leaks, Intake Boot Damage, Clogged Air Filters: Restrict airflow, impacting sensor readings.
Testing and Cleaning a MAF Sensor:
Voltage Test: Use a voltmeter to measure voltage output at idle and increased RPMs.
Unplug Test: If engine performance remains unchanged, the sensor might be faulty.
Cleaning: Use MAF sensor cleaner to remove dirt and oil buildup (avoid touching the sensor wires).
Replacing a MAF Sensor:
Relatively simple job, costing between $80 and $400 depending on the vehicle.
Disconnect the battery before removing the old sensor.
Reset the ECU using an OBD2 scan tool after replacement.
Read this step-by-step guide on troubleshooting MAF sensor problems:
www.autocornerd.com/check-engine-light-on-but-car-runs-fine/#3_Malfunctioning_Mass_Airflow_Sensor_Affecting_Air-Fuel_Ratio
#MAFsensor #CheckEngineLight #CarRepair #AutoRepair #FuelEconomy
Timecode:
00:00:00 - Introduction
00:00:05 - Symptoms, causes, and solutions
00:00:10 - M-A-F sensor location and function
00:00:15 - Air measurement and signals
00:00:20 - Incorrect air-fuel mixture
00:00:30 - Common symptoms of M-A-F sensor issues
00:00:35 - Symptom 1: Lack of power
00:00:54 - Symptom 2: Rough idle and shaking
00:01:17 - Symptom 3: Reduced fuel economy
00:02:01 - Symptom 4: Check engine light
00:02:13 - Symptom 5: Black smoke
00:02:26 - Symptom 6: Limp mode
00:02:55 - Causes of M-A-F sensor failure
00:03:03 - Dust and dirt accumulation
00:03:12 - Oil coating
00:03:21 - Wiring and connector issues
00:03:43 - Vacuum leaks and intake boot damage
00:03:59 - Testing a bad M-A-F sensor
00:04:03 - Using a voltmeter
00:04:19 - Voltage output range
00:04:24 - Unplugging the M-A-F sensor
00:04:33 - Cleaning a dirty M-A-F sensor
00:04:37 - M-A-F sensor cleaner usage
00:04:47 - Oil-based air filters
00:05:00 - Replacing a faulty M-A-F sensor
00:05:06 - Cleaning the sensor
00:05:10 - Disconnecting battery terminals
00:05:19 - Resetting the ECU
00:05:24 - Conclusion and guide link
มุมมอง: 1 479
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Would you recommend putting a breather filter in te oil cap? Until I get around to putting a catch can? As gm ecotec v6 commodore engine you have to take the top half off the intake runners and tap a line into existing pcv valve? Its a common problem with Aussie gm L36 ecotec v6? Any reply appreciated cheers from Australia subbed and liked 👍
As per my knowledge, it won’t cause significant change. So you should get catch can installed.
@@AutocornerdPros thanks for the quick reply. Cheers mate 👍
ecm
I had that issue last summer fixing my 07 3.2L Dodge Caravan. Had 7 weird faults I just didn't figure out. Put my scan tool on and the inlet air tep showed 242 degrees Celcius. Thinking that might be on the high side I bought the last sensor they had at my parts store riding my bicycle down. Carefully put it in the rubber inlet duct. All 7 snags went bye-bye forever. Kind of weird/ very satisfying. Still have the old girl. 301,000 km on her. Doesn't burn oil and idles like a champ. I bought a 2023 Corolla Cross as a backup. Just in case. 3,000Km oil changes. for over 17 years.
Excellent presentation and video
ANY transmission repair is EXENSIVE!! I mean ANY.
Why do we need this idiotic sensors, can the car ve simple without all this?????????
They communicate with the ECU so that engine runs efficiently. Otherwise, it won’t be silky smooth drive😬 would you like if your car starts shaking suddenly while having a nice long drive with someone special😅
@@AutocornerdPros cars in 1975's are the best Nissan Sunny 120Y, Toyota KE30, fantastic cars. Unlike nowadays cars, are crackpot!!!!!!
Can we use throttle body cleaner to test for vacuum leaks by spraying it near suspected areas to see if rpm changes?
Yes you can
Try a heavy oil, like gear oil.
Some new plugs are junk. I do well with NGK.
My vg30 has the same problem. It's super over fueling. Lots of white smoke at exhaust. But doesn't smell like oil. Only smells like feul. And idles rough. Maybe I should check pcv valve? Or what yall think. Plz help
Could be several causes. First check your coolant level. Did you try smelling exhaust?
Excellent video 👌
My engine rpm is fine at idle. But if i Rev the engine to around 2000rpm plus it suddenly fluctuates up and down. On elm32 graph, it shows up and down repeatedly.
Did you check throttle body? Any codes on scanner?
@@AutocornerdPros no dtc codes on scanner. The vehicle is maruti suzuki EECO. The vehicle doesn't have any problem while running. If i press the throttle at idle and rev it to under 2k rpm, it works fine. The moment it crosses 2k, it starts to go up and down. I came to know about this issue during emissions testing since it was not able to hold 2k rpm steadily while testing.
I had a torque converter go out and learned too late
I have an old 94gmc that doing the same but can't pin point trouble,what would you suggest .
Did you try to pull trouble codes using scan tool?
Excellent
Terrible Artificial Intelligence voice mispronouncing everything.
Could you please mention which word was mispronounced?
Never clean MAF sensor with brake cleaner! Get dedicated MAF cleaner.
Thanks for the tip
I agree, brake fluid will harm the MAF sensor. Use only proper sensor cleaner.
Your right abought that. 😊😊😊😊😊
oxegen sensor before cat could be bad it controlles everything same with map sensor
Yes I have also video on this.
Very good point. To add, if i may, newer vehicles also use secondary (even tertiary) oxygen sensors to control mixture. Newer Land Rovers have known “third” oxygen sensor faults that will cause either a lean or rich mixture. They’re not just worried that the cat is working, but will richen mixture to increase catalyst temps to make the cat work more efficiently.
What makes platinum plugs so good @@AutocornerdPros
I tried change the plugged an wires i coudnt brake em loose in less I put a cheater pipe on them an still had to put lot effort bust loose ant never seen that tight should I let a shop do it r do I keep proceed n any suggestions be greatly appreciated thanks ✌️
excellent job
Lol just got the P0031 error code.
Did you manage to fix?
Thanks for share you job… master.
I have a toyota camry 2018 se 2.5l I have misfire cyl 2. Code and also random misfire I believe p3000 I have new fuel pump and filter. New Injectors.. new spark plugs. swapped coils to check if it changes to different cylinder code. Checked leakage for valves. Good. Intake sensor good. MAF sensor is good. Haven't checked compression. But when I disconnect cylinder 2 while misfiring it doesn't change meaning seems that exactly still the area where the problem resides. All others (1,3,4) when disconnected cause it to misfire even more.. I do also get engine power reduced sign on dash. May my 02 sensor for any faulty reason possibly be causing my ECU to think it's running rich or lean and be causing the random misfire and the specific cylinder 2 misfire?? Without popping up a 02 sensor code on OBD 2 scanner???
Did you check connector of injector and coil?
TOO MUCH BLA,BLA,BLA, WITH NOTHING NEW. I did not like this video. thumb down
I tried my best to explain. What specifically you didn’t like? I would try my best to improve next time.
All those syptoms my truck currently has, thanks :)
Good to know. Thank you...
Robot robot robot
Hi, my voice isn’t clear. That’s why I didn’t use it. If you faced any difficulty in understanding it, please let me know 🙏
@AutocornerdPros It's the grammar... bad English. It's kind of distracting. And it's 'Blow-BY', not 'blow-b'. The people that are here for the info can still get it, so don't give up! It was a well made video with good visual clips. Maybe use a grammar check app if people keep complaining.
God job
Hey areyou still available
Yes?