Tech Tip: Mercedes-Benz Fuel System Service
If you encounter instances in E-Class vehicles (W210) of engine misfire/lack of performance with low fuel level (below approximately 1/4 tank) and/or the check engine light activated with code(s) P03XX (misfire detection), perform the following procedure.
Diagnostic Solutions: Fuel System Pressure & Volume Checks
For maximum efficiency, modern import fuel injection systems require that fuel be delivered at a specified volume and pressure. Because the fuel injector’s job is to mix fuel with the intake air charge, it must produce a finely misted, conical spray pattern through the fuel injector nozzle. Lower-than-specified fuel pressures not only fail to provide
Tech Tip: Airtex Provides Fuel System Service Pointers
Fuel pump repair jobs involve complete, systematic diagnostic procedures and thorough evaluation of the entire fuel delivery system. It is important to convey the complexity of modern fuel delivery systems to customers, as fuel pump repair is no longer a matter of simply attaching a replacement unit.
Airtex Provides Fuel System Service Pointers
Fuel pump repair jobs involve complete, systematic diagnostic procedures and thorough evaluation of the entire fuel delivery system. It is important to convey the complexity of modern fuel delivery systems to customers, as fuel pump repair is no longer a matter of simply attaching a replacement unit.
Diagnostic Dilemmas: Fuel System Foul Ups
Are the fuel pump returns from your shop going up? Understanding the root cause of technician errors is the first step to successfully managing fuel system parts purchases and returns. Over the years, vehicle fuel systems have become more complex as OEs look to improve fuel burning and engine efficiency. And during that time, industry
Under Pressure: Maintaining Ford’s Electronic Returnless Fuel System
By Glen Beanard, Technical Contributor Here we go again. A simple electric pump pushing fuel up to the engine, with its pressure being controlled by a little valve, and returning the unused fuel to the tank was not good enough. Now, we need to make that all fancy by adding a new controller, adding a
Dusting Off Fuel System Fossils:
For many technicians these days, the sight of a real working carburetor may be as alien as the rover roaming the dusty Martian surface. But consider the opportunities that these die-cast, zinc alloy, fossil fuel-metering Martians present to us technicians. Opportunities abound, to repair emissions failures by re-calibrating the main circuits and diagnosing high carbon
Volkswagen, Audi Direct Fuel Injection System
For the past decade, almost every vehicle that Volkswagen and Audi has sold in the U.S. has been equipped with direct fuel injection. These FSI, TSI and GDI systems allow for better fuel economy and power. The switch to direct injection has also allowed Volkswagen to downsize its engines from 2.0L to 1.4L on base models without losing any power, while still improving fuel efficiency.
Airtex Fuel Delivery Systems Launches Fuel Pump U En Espanol
Airtex Fuel Delivery Systems, the world’s largest manufacturer of fuel pumps, has just launched the Spanish version of it’s award-winning FuelPumpU.com technical training website. This online resource, which offers real-time educational assistance, as well as current and in-depth information and fuel pump replacement support will now be available both in English and Spanish. Technicians can
Contaminated Fuel Can Wreck Havoc On Fuel Delivery Systems
Although cases involving contaminated gasoline are relatively rare nowadays, they still occur. In many cases, the technician has replaced the fuel pump or mass air flow (MAF) sensor to address a P0171/P0174 “lean-condition” DTC with no result. In all likelihood, the technician didn’t consider the possibility that the vehicle’s fuel might be contaminated with E85 gasoline, diesel fuel, stale gasoline, or, to a lesser degree, sugar and water.
