gasoline direct injection - connecting repositoriesgasoline direct injection service tools, part no....
TRANSCRIPT
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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
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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