Uploaded January 2026 | Updated September 2026, 1 day ago
Learn the top 5 causes of engine running rich and what that black smoke from your exhaust really means. A seasoned mechanic explains everything in simple terms — from faulty sensors to fuel pressure problems — so you can diagnose and fix your car without wasting money.
Please subscribe! bit.ly/carPROblems
Timecode:
00:00:00 - Short intro
00:00:46 - Faulty Oxygen (O2) Sensor
00:01:36 - Dirty or Leaking Fuel Injectors
00:02:21 - Malfunctioning Mass Air Flow Sensor
00:03:02 - Faulty Engine Coolant Temperature Sensor
00:03:48 - Fuel Pressure Regulator Problems
00:04:24 - Other Possible Factors
00:04:53 - What Black Smoke Tells You
00:05:33 - How to Fix?
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Please subscribe! bit.ly/carPROblems
amzn.to/4aaYNOk - All-in-One OBDII Car Scanner
amzn.to/3WXD9HS - Top Rated Voltmeter
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Disclosure: As an Amazon Associate, I earn from qualifying purchases. This means that I may receive a commission if you click on an Amazon Affiliate link and make a purchase. This helps support my channel and allows me to continue to make videos like this. Thank you for your support!
Learn the top 5 causes of engine running rich and what that black smoke from your exhaust really means. A seasoned mechanic explains everything in simple terms — from faulty sensors to fuel pressure problems — so you can diagnose and fix your car without wasting money.
Please subscribe! bit.ly/carPROblems
Timecode:
00:00:00 - Short intro
00:00:46 - Faulty Oxygen (O2) Sensor
00:01:36 - Dirty or Leaking Fuel Injectors
00:02:21 - Malfunctioning Mass Air Flow Sensor
00:03:02 - Faulty Engine Coolant Temperature Sensor
00:03:48 - Fuel Pressure Regulator Problems
00:04:24 - Other Possible Factors
00:04:53 - What Black Smoke Tells You
00:05:33 - How to Fix?
youtube.com/@carproblemsmax/join - Become our Sponsor
Please subscribe! bit.ly/carPROblems
amzn.to/4aaYNOk - All-in-One OBDII Car Scanner
amzn.to/3WXD9HS - Top Rated Voltmeter
amzn.to/3WW4JoZ - New Batteries
amzn.to/49MsLYJ - New Tires Here!
amzn.to/3IFqZg1 - New Head Gaskets
****
Disclosure: As an Amazon Associate, I earn from qualifying purchases. This means that I may receive a commission if you click on an Amazon Affiliate link and make a purchase. This helps support my channel and allows me to continue to make videos like this. Thank you for your support!
