check engine light Archives : Danny's Engineportal

Reduced Engine Power Warning Light – What To Do And Why?

12/07/2025

Reduced Engine Power, can have many different names. All depending on the year, make and model of your vehicle. So, whether its, reduced engine power, limp mode, fail safe mode or limp home mode, they […]

Check Engine Light (CEL) – What Can Cause It To Come On

11/28/2025

Seeing a Check Engine Light (CEL), is one of the most frustrating and confusing factors of owning a vehicle. So, the (CEL) is just a light, with no information. It tells you that there is […]

Air Injection System (AIS) – Air Pump – Function, Types, Failure

09/08/2025

The air injection system (AIS), is actually part of the car’s exhaust system. Since no internal combustion engine is 100% efficient, there will always be some unburned fuel in the exhaust. As a result, the […]

Throttle Position Sensor (TPS) – Function – Failure – Testing

09/03/2025

So, the throttle position sensors function (TPS), is to supply vital information to the vehicles engine control unit (ECU). And, this information is based on, the actual position of the engines throttle valve. So, your […]

Dash Warning Lights – Only Provide A Warning Something Is Wrong

06/21/2025

Most dash warning lights, tell you that a fault has occurred inside the vehicle’s system. So, dash warning lights provide an idea – sometimes precise, sometimes vague – of what’s wrong with a vehicle. But, […]

Emission Control Systems – What Are They – How Do They Work

06/04/2025

Emission control systems help control fuel fumes, while cleaning engine producing exhaust gases. So, emission control systems, have been efficient in reducing air pollution, caused by automotive engines. And, emission control systems, depend on a […]