fuel system Archives - Page 7 of 16 - TechShop Magazine
Fuel Pump Diagnostics Using Scan Tools

The most common diagnostic procedures for fuel pumps in the past were analog and hands on. Most fuel pump-related problems could be solved with a pressure gauge and voltmeter. Today, the scan tool is the most important tool when diagnosing a fuel supply problem.

Returning Engine Power Through Fuel Injection Service

Over time, fuel injectors will become flow restricted from both the deposits that the gasoline leaves in them as it flows through the injectors and the carbon deposits that form on the head of the injectors, causing engine driveability issues

Tech Talk – Engine Innovations to Reach Government Fuel Standards

In recent years, the primary driving force behind engine innovation has been the never-ending quest for better fuel economy with little or no sacrifice in performance. Government regulations and rising fuel prices are forcing automakers to develop new technologies and powertrains that squeeze more power out of every drop of fuel while producing less pollution and greenhouse gas (carbon dioxide) emissions.

A 360

Over the years, GM has saved a bundle on manufacturing the 3.1L engine by using the production line tooling it originally developed for the 2.8L V6. By simply changing the bore diameter, the displacement of the same engine block could now be increased for more power and torque.

New Reality TV Show Based On Female Car Mechanic

Oakes Entertainment and Pam’s Motor City are proud to announce “Car E.R.,” a new reality series starring Pam Oakes and the employees of Pam’s Motor City in Fort Myers, FL. Sponsored by ACDelco, “Car E.R.” follows Pam, Peter (her long time fiance) and the rest of the gang at Pam’s Motor City as they deal with tricky automotive repairs, esoteric customers, and serious attitudes within the shop. Of course, not everything’s a problem, and there’s a lot of fun and good times, too.

AIRTEX Launches New Online Resource: FuelPumpU.com

AIRTEX Fuel Delivery Systems has launched a new website designed to provide the latest advances in diagnostic and procedural information and technical support for fuel pump replacement.

Tech Tip: Nissan Fuel Gauge Issues and/or DTC P0461, P0462 or P0463

If you confirm the fuel gauge is erratic, inaccurate or inoperative and/or the MIL is on with DTC P0461, P0462 or P0463 stored in self-diagnosis, replace the fuel lever sensor unit.

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.

Tech Tip: Ford Ticking Noise at Idle

Some 2008-’10 Focus vehicles built on or before December 23, 2009 may exhibit a ticking noise from the fuel rail or injectors at idle.

Pulling Codes: Mean and Lean with Shades of Gray

This article will document the infamous P0171 code – Lean Condition. A fuel system lean condition can be broken down into three subsections, namely, fuel pump performance, fuel quality and injectors. Keep in mind this is only a starting point, but it is a good place to start.

Tech Tip: Volkswagen’s MIL On with DTC P129F/P310B Set

Due to fuel intrusion into the low pressure side fuel pressure sensor (G410), a false signal may be sent to the ECM resulting in a reading that is out of tolerance. A false signal may result in illumination of the malfunction indicator lamp (MIL) and DTC P129F or P310B being stored in fault memory. There is now an improved fuel pressure sensor (G410) to aid against fuel intrusion.

Diagnostic Dilemmas: 8 Simple Rules …

Many of the “Diagnostic Dilemmas” Gary Goms is called upon to solve aren’t really all that complicated – but were caused by basic oversights and incorrect assumptions on the part of the technician. This situation has largely been caused by a lack of training and, in some cases, poor training.