Fuel System Archives - Import Car
Carbon Deposits and Direct Injection Engines

The primary cause of these problems is that fuel and added detergents are not hitting the back of the intake valves.

The Impact of Fuel Type on Engine Performance

When recommending fuel options for customers, consider engine design, manufacturer recommendations and usage.

Mercedes-Benz Fuel Pumps

Mercedes-Benz has long been a pioneer of GDI.

VW 2.0 TSI Intake Manifold DTCs

Here’s what you need to know in order to repair the issue.

Audi Quattro

The systems have evolved over the years, but the goal has remained the same: maximizing traction by sending power to all four wheels.

Audi EVAP Case Study

Let’s look at some of the things that you should know about Audi EVAP systems before trying to tackle such a repair.

Fuel Trims

To gain a better idea on fuel trims, think about how “analog” vehicles dealt with changing fuel and air mixtures.

Lucas Oil Deep Clean Fuel System Cleaner

Developed by Lucas Oil Products, Deep Clean Fuel System Cleaner contains additives to improve fuel economy, reduce exhaust emissions and increase power.

VIDEO: Clean The Fuel Tank Before Replacing The Pump

Sediment, rust and debris from the pump can get into the tank and kill the fuel pump. This video is sponsored by Carter.

Fuel System Diagnostics Is All In The Fuel Trim Numbers

With lean-burn operating strategies being built into many of today’s gasoline direct-injection and gasoline compression ignition engines, it’s important to build a foundational knowledge of how fuel trims work in the real world.

Hyundai Tech Tip: Fuel Sender Circuit Checks

Some customers may complain of an erratic or unresponsive fuel gauge or a fuel gauge that does not reach the full level after filling the fuel tank.

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.