Ngc And Gpec Speed Density Fuel Systems Chrysler 200-Books Pdf

NGC and GPEC Speed Density Fuel Systems Chrysler 200
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NGC and GPEC Speed Density Fuel Systems,TABLE OF CONTENTS. INTRODUCTION 1,COURSE OBJECTIVES 1,ACRONYMS 2,MODULE 1 BASIC ELECTRICITY 5. PCM TWO STATE INPUT CIRCUIT 7,PCM FAULT RECOGNITION 8. SHORT TO GROUND 9,OPEN CIRCUIT 10,SHORT TO POSITIVE 11. MODULE 2 SPEED DENSITY FUEL SYSTEM 13,FUEL DELIVERY SYSTEM 13.
Fuel Pump Module 14,Fuel Filter Fuel Pressure Regulator 14. Check Valve 14,Fuel Level Sensor 15,Dual Fuel Level Sensor 17. Lines and Hoses 18,Fuel Rail and Injectors 18,FUEL DELIVERY SYSTEM DIAGNOSTICS 18. Fuel Quality Testing 18,MODULE 3 PCM 21,PCM OPERATION 21. NEXT GENERATION CONTROLLER NGC PCM 22,Differences Between NGC3 and NGC4 22.
GLOBAL POWERTRAIN ENGINE CONTROLLER GPEC PCM 25,COMMUNICATION PROTOCOLS 27. PCI Bus J1850 27,SCI Bus 27,CAN Bus 27,J1962 Data Link Connector DLC Connector 28. PCM REPLACEMENT 30,FLASH PROGRAMMING 30,MODULE 4 PCM POWER FEEDS AND GROUNDS 33. NGC POWER FEEDS AND GROUNDS 33,NGC Unswitched Battery Feeds 33. NGC Switched Ignition Feeds 33,NGC Sensor Grounds 33.
NGC Auto Shutdown ASD Relay 35,NGC and GPEC Speed Density Fuel Systems. NGC 5 Volt Regulated Power Supply 35,NGC Testing and Diagnosis 35. GPEC Unswitched Battery Feeds 36,GPEC Switched Ignition Feeds 36. GPEC Main Relay 37,GPEC 5 Volt Regulated Power Supply 37. GPEC Testing and Diagnosis 37,Totally Integrated Power Module TIPM 38.
MODULE 5 SPEED DENSITY EQUATION 41,SPEED DENSITY MODEL 43. Air Flow 43,Fuel Modifiers 44,Feedback Input 45,MODULE 6 PCM INPUTS 47. PCM DIGITAL INPUTS 47, NGC Crankshaft Position CKP and Camshaft Position CMP Sensors 47. NGC Crankshaft Position CKP and Camshaft Position CMP Sensor. Diagnostics 50, GPEC Crankshaft Position CKP and Camshaft Position CMP Sensors 51. Manifold Absolute Pressure MAP Sensor 54,MAP Sensors on Turbocharged Vehicles 57.
Manifold Absolute Pressure MAP Sensor Diagnostics 58. Hall Effect Throttle Position Sensor 61,Throttle Position Sensor TPS Diagnostics 61. EGR Position Sensor Diagnostics 64,NTC Thermistors 65. Engine Coolant Temperature ECT Sensor 67,GPEC World Engine ECT Sensors 67. Engine Coolant Temperature ECT Sensor Diagnostics 67. Intake Air Temperature IAT Sensor Diagnostics 69,Sensed B Battery Voltage 71. Oxygen Sensor Locations and Naming 74,Open Loop Operation 75.
Closed Loop Operation 75,O2 Sensor Diagnostics 77,Oxygen Sensor Heaters 80. MODULE 7 ADAPTIVES 83,OXYGEN SENSOR FEEDBACK 83,SHORT TERM ADAPTIVE 83. NGC and GPEC Speed Density Fuel Systems,LONG TERM ADAPTIVE 85. PURGE VAPOR RATIO 87,MODULE 8 PCM OUTPUTS 91,PCM CONTROLLED OUTPUT DEVICES 91. NGC LOW SIDE CONTROLLED DEVICES 91,NGC HIGH SIDE CONTROLLED DEVICES 93.
GPEC LOW SIDE CONTROLLED DEVICES 95,GPEC HIGH SIDE CONTROLLED DEVICES 95. NGC AUTOMATIC SHUTDOWN RELAY ASD 95,GPEC MAIN RELAY 97. Fuel Injector Control 98,Fuel Injector Diagnostics 100. IGNITION SYSTEMS 101,Ignition System Operation 101. GPEC Ignition System 105,NGC 5 7L Engine Early 5 7L only 108.
Ignition System Diagnostics 110,LINEAR SOLENOID IDLE AIR CONTROL VALVE LSIAC 111. LSIAC AND IAC AIR FLOW MANAGEMENT 112,MINIMUM IDLE AIR FLOW 113. LINEAR EGR VALVE 113,SHORT RUNNER TUNING VALVE SRTV 114. MANIFOLD TUNING VALVE MTV 114,WORLD ENGINE FLOW CONTROL VALVE 116. EVAPORATIVE EMISSIONS EVAP SYSTEM 118,Onboard Refueling Vapor Recovery ORVR 118.
PROPORTIONAL PURGE SOLENOID PPS 119,Proportional Purge Solenoid Diagnostics 119. NGC NATURAL VACUUM LEAK DETECTION SOLENOID NVLD PRE 2007 MY. GPEC EVAPORATIVE SYSTEM INTEGRITY MONITOR ESIM 2007 MY 121. FUEL CAP OFF TEST 124,MALFUNCTION INDICATOR LAMP MIL 124. MODULE 9 ELECTRONIC THROTTLE CONTROL SYSTEM 127,ACCELERATOR PEDAL POSITION SENSORS APPS 128. ETC THROTTLE BODY 130,THROTTLE PLATE MOTOR CIRCUIT 130. THROTTLE POSITION SENSOR TPS 132,OTHER INPUTS 135,NGC and GPEC Speed Density Fuel Systems.
ETC RESPONSE TO NORMAL AND ABNORMAL CONDITIONS 136. Starting a Vehicle with ETC 136,Normal Operation 137. GPEC THROTTLE LEARN AND INJECTOR OFF TEST CONDITIONS 138. Throttle Learn Strategy 138,Injector Off Test 138,FAILURE MODES 139. Fail Safe Mode 139,Limp In Mode 139,VACUUM LEAKS 140. APPS SENSOR FAILURE 140,THROTTLE BODY AND TPS FAILURES 140. DIAGNOSTIC PROCEDURES 141,MODULE 10 VARIABLE VALVE TIMING VVT 143.
SENSORS USED IN VVT 144,PCM CONTROLLED OUTPUTS 145. Oil Control Valves 145,NGC and GPEC Speed Density Fuel Systems. INTRODUCTION, This publication contains information regarding the Speed Density fuel systems used. on most Chrysler Group vehicles The emphasis is on NGC and GPEC engine. management systems The NGC controller replaced the JTEC and SBEC controllers. in most gasoline powered vehicles by the 2005 model year and the GPEC controller. is used by World Engine Family vehicles, The fuel injection system for all of these engines is sequential multiport with an in. tank fuel pump module Ignition systems are direct coil on plug. A brief review of basic electrical principles will help your understanding of PCM. operation PCM inputs and outputs This course will discuss the Speed Density. Equation which describes how the PCM determines the correct fuel quantity Fuel. adaptives and electronic throttle control are also included. COURSE OBJECTIVES, Upon completion of this course you should be able to.
Have a general understanding of PCM operation, Locate and test the components of the wet side of the speed density fuel. Locate and test PCM power and ground circuits, Apply the speed density equation to both NGC and GPEC controllers. Identify PCM inputs and diagnose a faulty PCM input. Identify PCM outputs and diagnose a faulty PCM output. Describe the operation of the ETC APPS systems and diagnose a fault in. the system,NGC and GPEC Speed Density Fuel Systems. The acronyms listed here are used throughout this course. APPS Accelerator Pedal Position Sensor,ASD Auto Shutdown Relay. BARO Barometric Pressure Sensor,BCM Body Control Module.
BTS Battery Temperature Sensor,CAN Controller Area Network. CKP Crankshaft Position Sensor,CMP Camshaft Position Sensor. COP S Coil On Plugs Ignition,DHSS Dual High Side Switch. DIS Distributorless Ignition System,DLC Data Link Connector. DMM Digital Multimeter,DRBIII Diagnostic Readout Box 3rd Generation.
DTC Diagnostic Trouble Code,EATX Electronic Automatic Transmission Controller. ECT Engine Coolant Temperature Sensor,EGR Exhaust Gas Recirculation. EMI Electromagnetic Interference,ESIM Evaporative System Integrity Monitor. ETC Electronic Throttle Control,GPEC Global Powertrain Engine Controller. IAC Idle Air Control,IAT Intake Air Temperature Sensor.
JTEC Jeep Truck Engine Controller,KOEO Key On Engine Off. KOER Key On Engine Running,NGC and GPEC Speed Density Fuel Systems. LDP Leak Detection Pump,LEV Low Emission Vehicle,LIN Local Interconnect Network. LSIAC Linear Solenoid Idle Air Control Valve,LTFT Long Term Fuel Trim. MAP Manifold Absolute Pressure Sensor,MIC Mechanical Instrument Cluster.
MIL Malfunction Indicator Lamp,MTV Manifold Tuning Valve. MUX Multiplex,NC Normally Closed switch state,NGC Next Generation Controller. NO Normally Open switch state,NTC Negative Temperature Coefficient. NVLD Natural Vacuum Leak Detection,OBD II On Board Diagnostics 2nd Generation. ORVR On Board Refueling Vapor Recovery, PCI Programmable Communication Interface Bus J1850.
PCM Powertrain Control Module,PCV Positive Crankcase Ventilation Valve. PDC Power Distribution Center,PEP Peripheral Expansion Port. PPS Proportional Purge Solenoid,PTC Positive Temperature Coefficient. PWM Pulse Width Modulated,QHSS Quad High Side Switch. RAM Random Access Memory,RFI Radio Frequency Interference.
RPM Revolutions Per Minute,SBEC Single Board Engine Controller. NGC and GPEC Speed Density Fuel Systems,SC Speed Control. SCI Serial Communication Interface Bus,SKIM Sentry Key Immobilizer Module. SKREEM Sentry Key Remote Entry Module,SKIS Sentry Key Immobilizer System. SPIO Serial Peripheral Interface Output Circuit,SRTV Short Runner Tuning Valve.
STFT Short Term Fuel Trim,TCM Transmission Control Module. TDC Top Dead Center,TIP Throttle Inlet Pressure Sensor. TIPM Totally Integrated Power Module,T MAP Throttle MAP calculated MAP value. TPS Throttle Position Sensor,ULEV Ultra Low Emission Vehicle. VDC Variable Displacement Compressor,VSS Vehicle Speed Signal.
VVT Variable Valve Timing,WCM Wireless Control Module. WOT Wide Open Throttle,NGC and GPEC Speed Density Fuel Systems. MODULE 1 BASIC ELECTRICITY, The basic principles of electricity are essential to understanding PCM circuit. operation Let s review several concepts, The circuit shown is a simple series circuit with a battery a bulb and a switch As. shown the switch is open and no current is flowing The bulb is the load and it is. not illuminated There is no voltage drop when no current flows so voltage on the. ground side of the bulb point 2 measures 12V,Figure 1 Open Series Circuit.
When the switch closes the circuit is complete and current flows voltage drops. across the bulb The ground side of the bulb now measures 0V and the bulb is. illuminated,Figure 2 Closed Series Circuit,NGC and GPEC Speed Density Fuel Systems. We have replaced the switch with a variable resistor On a low ohm setting the. resistance of the variable resistor is low the voltage at point 2 is close to 0V and the. bulb is bright Fig 3 On a high ohm setting the resistance of the variable resistor. is increased the voltage at point 2 is also increased and the bulb is dimmer Fig 4. Figure 3 Variable Resistor Low Ohm Setting,Figure 4 Variable Resistor High Ohm Setting. NGC and GPEC Speed Density Fuel Systems,PCM TWO STATE INPUT CIRCUIT. Let s apply these concepts to a PCM Two State Input circuit The PCM has a 12V. reference voltage and an internal pull up resistor PCM sensor reference voltages. typically are 12V or 5V, In the next figure the switch is open Fig 5 The PCM voltmeter circuit sees the. voltage at point 2 The PCM sees a high voltage when the circuit is open No current. is flowing and there is no voltage drop across the pull up resistor so the full. reference voltage is at point 2,Figure 5 PCM Circuit High Input.
In the figure below the Two State Input circuit switch is closed Fig 6 The PCM. now sees 0V when the circuit is closed Current is flowing and the voltage drop. across the pull up resistor pulls voltage low on the ground side.

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