Rich Fuel Mixture

(O2) Oxygen Sensor: Function – Failure Symptoms – With Testing

03/10/2025

The, (O2) Oxygen Sensor, measures the difference, between the amount of (O2) in the exhaust gas. And, the amount of (O2) in air. So, with that information and other sources, the (ECU) can decide, whether […]

Oxygen Sensor (O2) Mounted on Exhaust Manifold

Oxygen Sensor (O2) – Rich Or Lean Engine Codes, What To Check

07/15/2024

Replacement of a good Oxygen Sensor, is a common mistake made by (DIY) mechanics all the time. So, before replacing any Oxygen Sensor, you must find the real problem first. First, the Oxygen Sensor is […]

(O2) Oxygen Sensors – Function, Failure Symptoms, And Testing

03/22/2024

EVERY VEHICLE BUILT SINCE THE EARLY 1980’s, HAS ONE OR MORE (O2) OXYGEN SENSORS INTEGRATED INTO THE EXHAUST SYSTEM. So, (O2) oxygen sensors, confirm, that the proper air/fuel ratio, is actually reaching the engine. Consequently, […]

Common Engine Problems – Noises, Leaks, Overheating, And Fuel

03/17/2024

We all know it’s important to take care of your vehicle’s engine. But, there are some common engine problems, that just get overlooked. So, as a vehicle owner it is important that you’re constantly on […]

Sticking Valves Because Of Carbon Deposits And Rich Fuel Mixture

11/13/2023

The first sign of sticking valves is usually, engine misfires or running rough when cold. However, sticking valves can also be, the byproduct of cold weather operation. In this case, the sticking valves, will often […]

Fuel Pressure Regulators, Commonly Fail In One Of Two Ways

10/23/2023

All fuel-injected engines, have fuel pressure regulators, to maintain a regulated high-pressure level. Fuel pressure regulators, must keep the pressure constant, in order for all the components of the system to work properly. Consequently, if […]