Welcome, Guest: Register On Nairaland / LOGIN! / Trending / Recent / NewStats: 3,194,193 members, 7,953,693 topics. Date: Thursday, 19 September 2024 at 11:33 PM |
Nairaland Forum / Nairaland / General / Car Talk / When Car Runs Rich Or Lean (1100 Views)
How To Know When Car Tyres Need Replacing / Pls Help: Car Engine Turns Off And Dies When Car Is Put In Drive Or Reverse. / My 2000 Toyota Seinna Is Emitting Black Smoke And Starts When Car Is Cold (2) (3) (4)
(1) (Reply)
When Car Runs Rich Or Lean by ironheart(m): 4:57am On Jun 18, 2018 |
Most vehicles today run on gasoline or diesel fuel. To make the vehicle move and work properly , an exact amount of air must be mixed with the proper amount of fuel burned in an engine. The “perfect” fuel air mix is called a “stoichiometric fuel ratio.” This is 14.7:1, 14.7 parts air to1 part fuel. In reality most engines rarely achieve this ratio: they run a bit richer most of the time. An engine runs especially rich when accelerating, when cold, or when under a load. If there is too much fuel and not enough air, the engine is said to be “running rich”, or “has a rich mixture”. It will have a gassy or rotten egg smell from the exhaust, give off a burning effect to the eyes and will make black smoke. If there is too much air and not enough fuel, the engine is said to be “running lean.” or “has a lean mixture”. On modern computer controlled engines this will cause the computer to turn on an amber check engine light which will give a trouble code of “system too rich” or “system too lean” Either condition will result in poor fuel mileage or possible engine damage. A rich mixture will cause the vehicle to run hot. It will cause a clogging up off the catalyst resulting in the degradation of the honeycomb in it. If your car is running too lean, it could result in jerking. Possible causes of a rich mixture – Dirty air filter – Stuck open injectors – Bad oxygen sensors – Faulty ECU – Bad Mass Airflow sensor – Retrofitted cooling system (Thermostat removed, Fan running direct, double cell radiator) – Bad Engine Coolant Temperature (ECT) Sensor Possible causes of lean mixture – Bad fuel pressure – Vacuum leak – Stuck open EGR valve – pump regulator – Insufficient fuel http://automedicsafrica.com/wp-content/uploads/2015/02/lean.jpg automedicsafrica.com/car-running-rich-lean-means-much-insufficient-fuel-supply |
(1) (Reply)
Top 5 Tips To Preserve Your Car Engine On Nigerian Roads / Owner Wrecked ₦99m Lamborghini Huracan Performante While Trying To Show Off / 2020 Honda Pilot Comes With A Black Edition
(Go Up)
Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health religion celebs tv-movies music-radio literature webmasters programming techmarket Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 19 |