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Southern Illinois University Carbondale OpenSIUC Presentations Department of Automotive Technology Spring 3-2011 Gasoline Direct Injection Omar Trinidad Southern Illinois University Carbondale, [email protected] Follow this and additional works at: hp://opensiuc.lib.siu.edu/auto_pres is presentation covers some of the differences between GDI and FSI. More specifically, this article focuses on the issues facing the GDI systems. is Article is brought to you for free and open access by the Department of Automotive Technology at OpenSIUC. It has been accepted for inclusion in Presentations by an authorized administrator of OpenSIUC. For more information, please contact [email protected]. Recommended Citation Trinidad, Omar, "Gasoline Direct Injection" (2011). Presentations. Paper 23. hp://opensiuc.lib.siu.edu/auto_pres/23
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Gasoline Direct Injection - OpenSIUC | Southern Illinois

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Page 1: Gasoline Direct Injection - OpenSIUC | Southern Illinois

Southern Illinois University CarbondaleOpenSIUC

Presentations Department of Automotive Technology

Spring 3-2011

Gasoline Direct InjectionOmar TrinidadSouthern Illinois University Carbondale, [email protected]

Follow this and additional works at: http://opensiuc.lib.siu.edu/auto_presThis presentation covers some of the differences between GDI and FSI. More specifically, this articlefocuses on the issues facing the GDI systems.

This Article is brought to you for free and open access by the Department of Automotive Technology at OpenSIUC. It has been accepted for inclusionin Presentations by an authorized administrator of OpenSIUC. For more information, please contact [email protected].

Recommended CitationTrinidad, Omar, "Gasoline Direct Injection" (2011). Presentations. Paper 23.http://opensiuc.lib.siu.edu/auto_pres/23

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Gasoline Direct Injection

By Omar TrinidadSouthern Illinois University Carbondale

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GDI GDI Highlights Mechanical & Electrical Differences Lexus D-4 D-4S

Volkswagen FSI TSI

GDI Issues Fuel System Intake Valve

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GDI Highlights Leaner Burn: 65-1 Higher compression Ratios: 12:1 Higher Power Output: V6=312HP Higher MPGs: 29 HWY Reduced Emmissions Forced Induction Friendly

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GDI Vehicles BMW Ford EcoBoost

General Motors 2.0L Ecotec

Hyundai Theta

Lexus

Mazda Speed Direct Injection Spark

Ignition

Mitsubishi Gasoline Direct Injection

Volkswagen FSI Fuel Stratified Injection

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Mechanical & Electrical Differences

Mechanical Electrical

Mechanical Fuel Pump Piston Shape Swirl Valve Higher Compression

Voltage Initial Pulse: 50-75 Volts Duty cycled 12 V

Paired cylinders Power and Ground

controlled Multiple Injection

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Controller Schematic

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VW GTI

8A

64 V

12 V

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WOT

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Lexus IS350

9.6 A

49V

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Paired Cylinders

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Multiple Injection

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Lexus GDI Systems

D-4 (4GR-FSE) D-4S (2GR-FSE)

IS250 (2005-Present) Direct injectors Cold Start Injector

IS350 (2005-Present) Direct injectors Port injectors

Presenter
Presentation Notes
Target pressure 580-1885. Up to 1880 PSI. Returns to the tank if it reaches 2219 PSI
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D-4 Stratified Injected after the intake

stroke Lean Mixture Cleaner Burn More efficient

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D-4 Homogenous Injected during the intake

stroke Shorter catalyst light-up

time More power Cold start conditions With Cold start injector

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Cold Start Injector

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High Pressure Fuel Control

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D-4S Stratified

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D-4S Homogenous

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Volkswagen GDI Systems

FSI (Fuel Stratified Injection) TSI (Turbo Stratified Injection)

2006-2008.5 GTI/Passat Tappet Type Mechanical

Pump Follower Three Cam Lobes

2009-Present GTI/Passat Roller Type Mechanical Fuel

Pump Follower Four Cam Lobes

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FSI System

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FSI System

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VW FSI Fuel Systems

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GDI Issues Fuel System Cam Follower Fuel Pressure Sensor

Intake Valve Deposits Misfire Lower MPG

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FSI Cam Follower

9K 111 K 31K

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Cam Lobe

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TSI New Design

Roller Type Follower Four Lobes

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Fuel Pressure Sensor TSB June 7, 2010

#2016182 Supersedes T.B. Group 01 number 07-69 dated Dec.13, 2007 due to updated thrust sensor part number for the 2.0L T (BPY) engine.

MIL ON, DTC P129F and or P310B Stored in ECM Fault Memory

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 DTC P310B being stored in fault memory.

Improved fuel pressure sensor -G410- to aid against fuel intrusion

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Intake Valve Deposits

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2006 VW GTI 45K Miles

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10K Miles After Cleaning

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2006 Lexus IS250

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2006 Lexus IS250 After Cleaning

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2007 Cobalt SS 20K Miles

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Lexus TSB MIL "ON" DTC P030# and/or Intermittently Runs

Rough 2006 – 2010 IS250 Conditions MIL “ON” DTC P0300, P0301, P0302, P0303, P0304, P0305,

and/or P0306. Runs rough after coming to a stop with the engine at operating

temperature. Runs rough with engine misfires present after a cold soak

startup.

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Solutions Cleaners BG's Gasoline Direct Injection Cleaner Gasoline Direct Injection Service Tools, Part No. 9060

PCV Catch Can Intake Valve Cleaning Manifold Removal

Cylinder Head Replacement

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PCV Catch Can

*** Will Void Your Warranty***

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PCV Catch Can (1 Week)

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PCV Catch Can

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Intake Valve Cleaning

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Intake Valve Cleaning

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Cylinder Head Replacement

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Presentation Access http://opensiuc.lib.siu.edu/auto_pres/ Google: Open SIUC