Diagnostic Solutions: Direct Fuel Injection Systems
For veteran technicians, it’s no wonder that the internal combustion engine (ICE) has been pronounced “dead” on more than one occasion. After having gone through the gas turbine craze during the early 1960s and the rotary engine fad of the 1970s, it comes as no surprise that we’re witnessing still another resurrection of the reciprocating internal combustion engine in the form of gasoline direct fuel injection.
Advanced Tips For Changing Fuel Pressure On EFI Systems
Changing the fuel pressure on an EFI System is an effective method of affecting engine performance and making more power. However, there are many do’s and don’ts, and rules of thumb that can be frustrating to learn the hard way. This article includes many small, but key points, tips and insights all engine tuners should to know and understand before cranking on that adjustable regulator.
Quick Fuel Technology Introduces New EFI System
Quick Fuel Technology, known for its innovative carburetors and fuel systems, is introducing QFI – a bolt-on throttle body electronic fuel injection system capable of supporting 500 horsepower.
Airtex Fuel Delivery Systems Announces Lifetime Warranty
Airtex Products has announced that all of its electric fuel pumps and electric fuel pump assemblies will now be backed by a Lifetime-Limited Warranty.
Tech Tip: Fuel Delivery System
In the last decade, fuel delivery systems have evolved to become a state-of-the-art technology. Changes were made without the service technician having to learn a lot more on how to maintain and service the fuel delivery systems. But one part that has been constantly getting upgraded each and every year is the fuel pump.
Diagnostic Solutions: Contaminated Fuel Can Wreck Havoc On Fuel Delivery Systems
Import Specialist Contributor Gary Goms discusses how contaminated fuel can mimic the symptoms produced by defective fuel pumps, fuel injectors and fuel control components like mass air flow (MAF) sensors. Although cases involving contaminated gasoline are relatively rare nowadays, they still occur. In many cases, the technician has replaced the fuel pump or MAF sensor to address a P0171/P0174 “lean-condition” DTC with no result.
Diagnostic Solutions: Testing Fuel Delivery Systems – Checking the Basics First Can Facilitate Diagnostic Strategy
Vehicle fuel delivery technology has evolved to include conventional, pulse-modulated and direct fuel injection systems, with each having a specific set of components and testing issues. Gary Goms explains how to avoid some of the most common mistakes in diagnosing fuel delivery systems.
Fuel Injection System: How Does it Know?
With the days of carburetors behind us, the electronic fuel injection system in the cars we drive today is king. While carburetors mixed the air and fuel together and the mixture was sucked into the cylinder and burned, modern electronically controlled fuel injection injects the right amount of fuel, at the right time for optimum fuel efficiency and economy, and driving performance. But the question remains, how does it know what that ‘right amount’ is and when’s the ‘right time’ to inject?
Tech Feature: Returnless Fuel Injection Systems
If you’ve tried to find the fuel pressure regulator on many late-model engines by looking in the engine compartment, you won’t find it there because the regulator has been relocated to the fuel tank. Engines with “returnless” electronic fuel injection (EFI) systems have the regulator inside the fuel tank. The regulator is part of the fuel pump assembly and is usually located downstream of the in-tank fuel filter.
Point of No Return: Returnless Fuel Injection Systems
If you’ve tried to find the fuel pressure regulator on many late-model engines by looking in the engine compartment, you won’t find it there because the regulator has been relocated to the fuel tank.