Gasoline Direct Injection: Total System Diagnostics - UnderhoodService

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Technical resources to help diagnose and repair engine-related service issues.
Webinar

Gasoline Direct Injection: Total System Diagnostics

Speakers

  • Julio Ortego, Engineering Manager, Repair Products
  • Andrew Markel, Director of Technical Content, ShopOwner

Sponsored By Carter Fuel Systems

Date: October 19, 2022

Modern gasoline direct injection (GDI) engines have two fuel pump opportunities. You still have an electric pump in the tank, but a high-pressure fuel pump is on the engine. These two pumps work in unison, so the correct quantity of fuel is injected directly into the cylinder. If either pump can’t generate the pressure or volume commanded by the engine management system, it will cause driveability issues. In a 45-minute webinar, the experts from Carter Engineered Fuel Pumps will train you on how to diagnose the entire fuel system of a GDI vehicle.

Topics to be Covered:

  • Electric fuel pump voltage drop testing
  • Measuring pulse-width signals with scopes, meters and scan tools
  • Pressure testing for the high- and low-sides of the fuel system
  • Using scan tool data to evaluate the health of the pumps and injectors
  • High-pressure fuel pump visual inspection
  • Diagnosing fuel-related stumbles and hesitation complaints
  • Common DTCs caused by a compromised low- or high-pressure fuel pump
  • Curing fuel pump contamination issues
  • Ethanol and GDI systems

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