Model · Knowledgebase
Integra
378 articles
Cars · Sensors
Like Pages Reference
Cars · Diagnostics
OBD1 P72 ECU Debug Mode and ROM Configuration Switches
Cars · Sensors
VTEC Low Cam Profile
Cars · Sensors
MAX233 TTL to RS232 Level Translator
Cars · Diagnostics
PK2
Cars · Sensors
Multi Port Fuel Injection (MPFI) Overview
Cars · Sensors
Digital Multimeter Fundamentals
Cars · Sensors
OBD0 Fuel Calculation Formula
Cars · Diagnostics
Popol Vuh: Foundational ECU Documentation
Cars · Sensors
OBD0 Ignition Timing Conversion Formula
Cars · Diagnostics
Pre-Ignition and Detonation (Engine Knock)
Cars · Sensors
OBD0 8-Bit Rev Limit and Restart Formula
Cars · Diagnostics
Real-Time Programming (RTP) for Honda ECUs
Cars · Sensors
OBD0 and OBD1 VTEC RPM Calculation Formula
Cars · Diagnostics
DIY Engine Simulator for ECU Bench Testing
Cars · Sensors
OBD1 16-bit RPM Calculation Reference
Cars · Diagnostics
Speed Density
Cars · Sensors
OBD1 8-Bit Ignition Advance Calculation
Cars · Diagnostics
Honda ECU Speed Limiter Operation
Cars · Sensors
OBD1 8-bit High Cam RPM Conversion
Cars · Diagnostics
Xeltek SuperProZ EPROM Programmer Technical Overview
Cars · Sensors
OBD1 8-bit TPS Scaling Reference
Cars · Diagnostics
Throttle Plate Operation and Function
Cars · Sensors
OBD1 Civic and Integra ECU Reference
Cars · Diagnostics
Throttle Position Sensor (TPS)
Cars · Sensors
Orphaned Pages Documentation
Cars · Diagnostics
Troubleshooting a Solid CEL
Cars · Diagnostics
Removing MAP Sensor Software Limits (Uncorking)
Cars · Diagnostics
Honda ECU Chipping: Essential Tools and Hardware
Cars · Ecu
27C256 EPROM Specifications
Cars · Ecu
28C256 EEPROM Pinout and ECU Compatibility
Cars · Sensors
OBD1 Honda P28 ECU Reference Guide
Cars · Ecu
82C55 Programmable Peripheral Interface
Cars · Ecu
Honda ECU Identification and Compatibility FAQ
Cars · Sensors
OBD1 Honda P30 ECU Reference Guide
Cars · Ecu
OBD1 Large-Case ECU Chipping Guide
Cars · Ecu
Using and Modifying Bulb-Style Desoldering Irons
Cars · Ecu
Guide to Desoldering Stations for ECU Work
Cars · Sensors
P54 ECU Technical Reference
Cars · Ecu
Desoldering Tips & Best Practices
Cars · Ecu
Desoldering Tools for ECU Modification
Cars · Ecu
OBD1 Honda ECU Architecture and Memory Mapping
Cars · Sensors
P71 ECU Technical Reference
Cars · Ecu
Honda PGM-FI Engine Control Unit (ECU) Identification
Cars · Sensors
OBD1 Honda P72 ECU Reference Guide
Cars · Ecu
ECU Control Software Overview
Cars · Sensors
P73 OBD2 ECU Reference (1996–2000 Integra Type-R)
Cars · Ecu
ECU Definition Codes
Cars · Sensors
P74/P75 OBD1 ECU Reference
Cars · Ecu
Honda ECU Families & Generations
Cars · Sensors
P75 ECU Technical Reference
Cars · Ecu
Honda ECU Hardware Architecture
Cars · Sensors
P76 OBD1 ECU Technical Reference
Cars · Ecu
EPROMer5 Device Programmer Technical Guide
Cars · Ecu
EPROMer5 Parallel-Port EPROM Programmer
Cars · Ecu
Honda Distributor Ignitor Replacement for Aftermarket Ignition
Cars · Sensors
Atmospheric Pressure (PA) Sensor Technical Reference
Cars · Ecu
Soldering Guide for ECU Modifications
Cars · Sensors
PG7 ECU Identification and Variants
Cars · Sensors
PJ1 ECU Technical Reference
Cars · Ecu
OBD0 Acura Integra PR4 ECU Technical Reference
Cars · Ecu
OBD1 PR4 ECU Hardware Reference
Cars · Sensors
Honda PR3 ECU Reference Guide
Cars · Ecu
OKI M6260A Engine Control Counter IC
Cars · Sensors
PR4 ECU Technical Reference
Cars · Sensors
PR5 ECU Technical Overview
Cars · Ecu
OBD0 PR3 ECU Automatic to Manual Conversion
Cars · Ecu
Guide to EPROM and Flash ROM Burners
Cars · Ecu
Soldering Iron Selection and Usage Guidelines
Cars · Sensors
Pulse Width Modulation (PWM)
Cars · Ecu
Locking Pliers (Vise-Grips) for Automotive Hardware
Cars · Sensors
OBD0 Honda PW0 ECU Reference Guide
Cars · Fueling
Air-Fuel Ratio (AFR) Guide for Honda Tuning
Cars · Sensors
Pulse Width Modulation (PWM) in Honda ECUs
Cars · Fueling
Introduction to Honda ECU Tuning
Cars · Sensors
Electronic Component Sourcing for ECU Repair
Cars · Fueling
High Impedance Injectors
Cars · Sensors
Real-Time Programmable ECU Boards
Cars · Sensors
Real Time Programming (RTP) Hardware
Cars · Fueling
Fuel Injector Sizing and Selection
Cars · Sensors
Project Contributors and History
Cars · Fueling
Low Impedance Injectors
Cars · Sensors
Honda ECU Rev Limiter Operation
Cars · Fueling
Manifold Absolute Pressure (MAP) Sensor
Cars · Sensors
Revolutions Per Minute (RPM) Signal
Cars · Fueling
Oxygen (O2) Sensor Technical Reference
Cars · Sensors
Engine Revolutions Per Minute (RPM) Signal
Cars · Fueling
Tuning Honda ECUs for Smog and Emissions Inspections
Cars · Sensors
RS232 Serial Communication Protocol
Cars · Fueling
Understanding ECU Fuel and Ignition Maps
Cars · Sensors
Technical Documentation and Resource Guidelines
Cars · Fueling
Wideband Oxygen Sensor Integration and Tuning
Cars · Sensors
Real Time Programmability (RTP)
Cars · Sensors
Saturated (High Impedance) Fuel Injectors
Cars · Sensors
ECU Memory Sector Architecture
Cars · Sensors
Factory Service Manuals (Helms)
Cars · Sensors
Single Overhead Cam (SOHC) Engine Architecture
Cars · Sensors
Spark Advance Fundamentals
Cars · Sensors
Spark Cut Ignition Strategies
Cars · Sensors
Static RAM (SRAM) Technical Overview
Cars · Sensors
Steve Wainstead Technical Contributions
Cars · Ignition
Crankshaft Position (CKP) Sensor Operation
Cars · Sensors
Super Chips Automotive Tuning Overview
Cars · Ignition
Honda PGM-FI Ignition Coil Technical Reference
Cars · Sensors
Top Dead Center (TDC)
Cars · Sensors
Top Dead Center (TDC) Sensor Technical Reference
Cars · Ignition
Knock Sensor Operation and Diagnostics
Cars · Sensors
Transistor-Transistor Logic (TTL) Reference
Cars · Ignition
Tuning Ignition Timing on Honda ECUs
Cars · Sensors
Engine Tuning Concepts and Reference
Cars · Reference
Acura Brand History and Overview
Cars · Sensors
UberData Tuning Software Overview
Cars · Reference
Camshaft Profile Fundamentals
Cars · Sensors
NEC uPD7004C Analog-to-Digital Converter
Cars · Reference
Engine Compression Ratio Fundamentals
Cars · Sensors
USDM OBD1 ECU Specifications
Cars · Reference
Honda ECU Central Processing Unit (CPU) Overview
Cars · Sensors
Vacuum Advance Ignition Systems
Cars · Reference
NEC 2SD1780 Transistor Specifications
Cars · Sensors
Vehicle Speed Sensor (VSS) Technical Reference
Cars · Reference
Detonation Resonant Frequency Calculation
Cars · Sensors
VTEC System Overview
Cars · Reference
Honda ECU Hardware Analysis: G-Spot Reference
Cars · Reference
Little Endian Memory Format
Cars · Tuning
Basic Concepts of Honda Engine Management
Cars · Reference
Most Popular Technical Resources
Cars · Reference
Octal Numbering System
Cars · Tuning
Data Link Connector (DLC) Communication Protocols
Cars · Reference
Australian Domestic Market (OzDM) Vehicle Specifications
Cars · Tuning
DIY Dual-ROM Setup (27C512 Jumper Switch)
Cars · Tuning
Exhaust Gas Temperature (EGT) Sensor Overview
Cars · Reference
Honda PCF ECU Hardware Reference
Cars · Tuning
Full-Duplex Datalogging & the `J12` Jumper
Cars · Reference
Honda PCN ECU Hardware Reference
Cars · Reference
Random Access Memory (RAM) in Honda ECUs
Cars · Reference
Square Bracket Syntax and Usage
Cars · Reference
User Preferences Configuration
Cars · Tuning
Proposed Datalogging & RTP Protocol
Cars · Reference
Wide Open Throttle (WOT) Definition and Tuning Significance
Cars · Tuning
Logic Mapping & Truth Tables for EPROM Emulation (RTP)
Cars · Rom
SST27SF256 Flash Memory Reference
Cars · Tuning
USB-to-TTL Serial Converter Guide (`FTDI` & CP2102)
Cars · Wiring
VTEC Conversion Guide: "1720" ECU Boards
Cars · Rom
Oki 66K Processor Resources
Cars · Wiring
ECU Conversion Guide: 02D01980-1500 Board
Cars · Rom
74HC373 Octal Latch IC
Cars · Wiring
1-Wire VTEC Conversion
Cars · Rom
Modifying Target Idle RPM in OBD0 PM7 ECUs
Cars · Wiring
Atmel AT29C010 Flash ROM
Cars · Rom
Understanding ECU Binary (.bin) Files
Cars · Wiring
5050s VTEC Conversion Fix
Cars · Rom
Thread-Locking Compound Selection and Application
Cars · Wiring
A/C Thermostat Switch Bypass
Cars · Rom
Understanding Boost Pressure
Cars · Rom
Turbocharger Boost Controller Reference
Cars · Wiring
Acura Integra PR4 OBD0 ECU Pinouts
Cars · Rom
Understanding Boost Cut
Cars · Wiring
Analog-to-Digital Conversion (ADC)
Cars · Rom
check8 8-Bit ROM Checksum Utility
Cars · Wiring
Adding a Knock Sensor to a Honda ECU
Cars · Wiring
Atmospheric Pressure
Cars · Wiring
Automatic to Manual ECU Conversion
Cars · Rom
Chipping the OBD0 PM6 ECU (1988–1991 Civic/CRX Si)
Cars · Wiring
BAR (Unit of Pressure)
Cars · Rom
Chipping OBD2 Honda ECUs (OKI 66507 / 66P507)
Cars · Wiring
Calendar Plugin
Cars · Rom
Honda ECU Chipping Visual Reference Guide
Cars · Wiring
Check Engine Light (CEL)
Cars · Rom
Sourcing Memory Chips for Honda OBD0 and OBD1 ECUs
Cars · Wiring
Combustion Chamber
Cars · Rom
Clamping Diode Installation and Selection
Cars · Wiring
ECU Conversion Overview
Cars · Rom
Understanding the ECU Fuel Map Column Multiplier
Cars · Rom
Crome ROM Editor Overview
Cars · Wiring
Desoldering Braid
Cars · Rom
Crome JavaScript Scripting API
Cars · Wiring
Honda Data Link Connector (DLC) Reference
Cars · Rom
DAC
Cars · Rom
Understanding Dec At Addy
Cars · Wiring
Index of Honda ECU Connections & Pinouts
Cars · Wiring
EDM
Cars · Rom
Dual-Map ROM Tuning for Honda ECUs
Cars · Wiring
How ECU Datalogging Works
Cars · Rom
Dual Runner Intake Manifold Operation
Cars · Wiring
Wideband O2 Sensor Installation Guide
Cars · Rom
Honda ECU Dual-Table ROM Structures
Cars · Wiring
Honda OBD0 to OBD1 Wiring Conversion Guide
Cars · Rom
EA (EA Prime) Pin Functionality
Cars · Wiring
Mass Air Flow (MAF) Sensor
Cars · Wiring
MCU Readers and ROM Dumping
Cars · Rom
DIY Easy-RTP v1.0 Build and Installation Guide
Cars · Wiring
DIY Datalogging Cable (Nokia FBUS Modification)
Cars · Rom
ECU Boost Control Implementation
Cars · Rom
Guide to Honda ECU Hardware Modifications
Cars · Wiring
NVSRAM Technical Reference
Cars · Rom
ECU Nitrous Control Implementation
Cars · Wiring
Oxygen (O2) Sensor Heater Circuit
Cars · Rom
Contributing to Hondabase Documentation
Cars · Wiring
Honda OBD Generations Guide (OBD0 to OBD2)
Cars · Rom
Electronic Boost Controller Fundamentals
Cars · Wiring
OBD0 ECU ROM Map Conversion Formulas
Cars · Rom
Electronic Part Supplier Reference
Cars · Rom
Honda ECU Engine Simulator Reference
Cars · Wiring
OBD0 CN3 Serial Port Reference
Cars · Rom
Honda ECU EPROM Compatibility Reference
Cars · Wiring
OBD0 Automatic ECU to Manual Conversion
Cars · Rom
FLASH Memory Architecture
Cars · Wiring
Honda OBD1 ECU Reference (1992–1995)
Cars · Rom
Fuel Cut Operation and Theory
Cars · Wiring
OBD1 8-Bit Low-Cam RPM Scaling
Cars · Rom
Fuel Pressure Tuning and Specifications
Cars · Wiring
OBD1 ECU: Auto to Manual Conversion
Cars · Rom
Hondabase Full Recent Changes
Cars · Wiring
OBD1 ECU Code Compatibility Guide
Cars · Rom
Ghetto Dyne Tuning Platform
Cars · Wiring
OBD1 ECU ROM Conversion Formulas
Cars · Rom
Technical Documentation Style Standards
Cars · Wiring
OBD1 Oki 66207 Reader (DIP64)
Cars · Rom
Converting Intel HEX Files to Binary (BIN)
Cars · Wiring
OBD1 CN2 Serial Port Reference
Cars · Rom
High-Resolution (Hi-Res) P72 ROM Specifications
Cars · Wiring
OBD1 ECU J12 Jumper Reference
Cars · Rom
Installing and Configuring the Add Extra Features Plugin for Crome
Cars · Rom
Ideal Gas Law in Speed-Density Tuning
Cars · Wiring
OBD2 Diagnostics Standard
Cars · Rom
Intel 8051 Development Reference
Cars · Wiring
OBD2 Oki66507 Reader Nico
Cars · Rom
Honda ECU Internal ROM Architecture
Cars · Rom
Introduction to ECU Chipping
Cars · Wiring
OBD2 P5M ECU Automatic to Manual Conversion
Cars · Rom
Java Script
Cars · Rom
Latch Logic and ECU Implementation
Cars · Rom
Honda ECU Launch Control (Two-Step) Implementation
Cars · Rom
Honda MAP Sensor Voltage Calibration Equations
Cars · Rom
Mass Air Flow (MAF) Systems
Cars · Rom
Honda ECU Microcontroller (MCU) Overview
Cars · Wiring
Printed Circuit Boards (PCB)
Cars · Rom
Multiprocessor Communication Protocols
Cars · Wiring
Peak and Hold (Low Impedance) Injectors
Cars · Rom
ECU 0-5V Wideband O2 Input Modification
Cars · Rom
OBD0 Engine Control Units (1988–1991)
Cars · Wiring
Replacing M5128 SRAM with DS1220 NVSRAM
Cars · Rom
OBD0 Stock Datalogging Capabilities
Cars · Wiring
Resistor Box Installation Guide
Cars · Rom
OBD0 Edit
Cars · Wiring
RM11 Resistor Network Replacement
Cars · Rom
OBD0 PM6 & PM7 RAM Address Locations
Cars · Wiring
ROM Map Index
Cars · Rom
OBD1 8-Bit Fuel Calculation Reference
Cars · Wiring
Real-Time Programming (RTP) Project
Cars · Rom
OBD1 8-bit MAP Calibration in Millibars
Cars · Wiring
PGMFI SourceForge Repository
Cars · Rom
OBD1 Honda ECU Routine Reference
Cars · Wiring
Spark Plug Technical Reference
Cars · Rom
OBD1 ECU J1 Jumper Configuration
Cars · Wiring
Throttle Position Sensor (TPS) Adjustment
Cars · Rom
OBD2A
Cars · Wiring
USB-to-Serial TTL Adapters (`FTDI` / USBMOD3)
Cars · Rom
OBD2K ECU Standard
Cars · Wiring
Vehicle Speed Sensor (VSS)
Cars · Rom
One Time Programmable (OTP) EPROM
Cars · Wiring
VTEC Solenoid
Cars · Wiring
Engine Wiring Harness Reference
Cars · Rom
P61 ECU Technical Reference
Cars · Rom
PGMFI Administrative Contributors
Cars · Rom
Piggyback Engine Management Controllers
Cars · Rom
Pocket Programmer 2 Technical Overview
Cars · Rom
Atmospheric Pressure (PA) Sensor Reference
Cars · Rom
Recent Technical Documentation Edits
Cars · Rom
Red Loctite Thread-Locking Compound
Cars · Rom
Understanding Relative Pressure in Engine Tuning
Cars · Rom
Read Only Memory (ROM) Architecture
Cars · Rom
ROM Editor Overview
Cars · Rom
ROM Emulator Technical Overview
Cars · Rom
Honda and Rover Technical Collaboration
Cars · Rom
USB-Based ECU Datalogging and Hardware Integration
Cars · Rom
Honda ECU Serial Communication Adapters
Cars · Rom
Throttle Body Overview
Cars · Rom
Turbocharger Fundamentals
Cars · Rom
Turbo Compressor Map
Cars · Rom
Introduction to TurboEdit (OBD0 Honda Tuning)
Cars · Rom
Uberdata and ERM Tuning Editors
Cars · Rom
UberData Tuning FAQ
Cars · Rom
Uber P72 ROM Map
Cars · Rom
UV EPROM Erasure Procedures
Cars · Rom
Volumetric Efficiency (VE)
Cars · Rom
VTEC Crossover Point Calibration
Cars · Rom
Technical Considerations for Retrofitting Knock Sensors
Cars · Rom
Turbocharger Wastegate Operation
Cars · Rom
Technical Limitations of Piggyback ECU Controllers
Cars · Diagnostics
`29C256`
Cars · Rom
Willem EPROM Programmer Guide
Cars · Diagnostics
Honda 6260A ECU Diagnostic LED Routine
Cars · Rom
WinHex Hexadecimal Editor for ECU Tuning
Cars · Rom
Zero Insertion Force (ZIF) Sockets for ECU Tuning
Cars · Sensors
Oki 66207 MCU Technical Reference
Cars · Diagnostics
1991 PM6 ECU Diagnostic LED (CEL) Blinking Routine
Cars · Sensors
Oki 66K Assembly Language Routines for Honda ECUs
Cars · Diagnostics
Oki 8XC154 A5h Opcode Analysis
Cars · Sensors
A143 Transistor Specifications and Replacements
Cars · Diagnostics
Understanding Absolute Pressure in ECU Tuning
Cars · Sensors
Understanding Absolute Vacuum in Automotive Sensors
Cars · Sensors
Adding IAB Control to an OBD1 P28 ECU
Cars · Diagnostics
ECU Boost Table Expansion
Cars · Sensors
Automatic Transmission Lockup Solenoid
Cars · Diagnostics
Adding Knock Sensor Circuitry to OBD1 ECUs
Cars · Sensors
Back Links Functionality
Cars · Diagnostics
PR4 ECU Atmospheric Pressure (PA) Sensor Configuration
Cars · Sensors
8051 and Oki 66k Carry Bit (C) Reference
Cars · Diagnostics
Application Programming Interface (API) Reference
Cars · Sensors
C144 NPN Switching Transistor
Cars · Diagnostics
ASM662 Assembler and Disassembler
Cars · Sensors
C2785 NPN Switching Transistor
Cars · Diagnostics
Auto Or Manual
Cars · Sensors
Chipping OBD1 Small-Case ECUs
Cars · Diagnostics
Batronix USB Programmer Technical Guide
Cars · Sensors
Honda ECU Clock Speed Reference
Cars · Diagnostics
ECU ROM Checksum Calculation and Verification
Cars · Sensors
DigiKey Electronic Component Sourcing
Cars · Sensors
Disabling the VTEC Vehicle Speed Sensor (VSS) Check
Cars · Diagnostics
Troubleshooting Honda ECU Datalogging (CN2 Debugging)
Cars · Sensors
Disabling VTEC VSS Check on P72 ECU
Cars · Diagnostics
Diagnostic Trouble Code (DTC) Retrieval and Reference
Cars · Sensors
Honda Distributor Operation and Function
Cars · Sensors
DIY Technical Philosophy
Cars · Diagnostics
Honda ECU Backup Processor Reference
Cars · Sensors
Dual Overhead Camshaft (DOHC) Engine Architecture
Cars · Diagnostics
Honda ECU Code Compatibility and Cross-Platform Flashing
Cars · Diagnostics
Honda OBD0 and OBD1 ECU Troubleshooting
Cars · Diagnostics
EEPROM Technical Overview
Cars · Sensors
Engine Coolant Temperature (ECT) Sensor Reference
Cars · Sensors
Honda ECU Sensors
Cars · Diagnostics
Full Throttle Shift Implementation for OBD1 ECUs
Cars · Sensors
Electrical Load Detector (ELD) Operation
Cars · Diagnostics
EFI Theory and Engine Management Reference
Cars · Sensors
Electronic Spark Advance Systems
Cars · Diagnostics
Intel HEX File Format Overview
Cars · Sensors
Electronic Advance Distributors
Cars · Diagnostics
Hondata ECU Tuning Systems
Cars · Sensors
Electronic Air Control Valve (EACV) Operation
Cars · Diagnostics
OBD1 ECU IACV Circuit Repair: R58, R59, and Q21
Cars · Sensors
Honda ECU Engine Simulator Bench Testing
Cars · Diagnostics
Honda Fuel Injector Test Circuit
Cars · Sensors
UberData Engine Management (ERM) System
Cars · Diagnostics
Joel Eck
Cars · Sensors
Fuel Octane Ratings and Engine Performance
Cars · Diagnostics
Honda OBD1 ECU Label Identification
Cars · Sensors
Future Active Electronic Components Distributor
Cars · Diagnostics
OBD0 Limp Mode Diagnostics and Operation
Cars · Sensors
Honda and Acura Factory Service Manuals
Cars · Diagnostics
Link Icons for Documentation
Cars · Sensors
VTEC High Cam Profile
Cars · Sensors
Intake Air Temperature (IAT) Sensor Reference
Cars · Diagnostics
OBD0 Code Compatibility
Cars · Sensors
Idle Air Control Valve (IACV) Operation and Diagnostics
Cars · Diagnostics
OBD0 Stock ECU Serial Datalogging
Cars · Sensors
Intake Air Temperature (IAT) Sensor Specifications
Cars · Diagnostics
OBD0 VTEC ECU Reference: PR3 and PW0
Cars · Sensors
Honda ECU Input/Output (I/O) Architecture
Cars · Diagnostics
OBD0 16-Bit RPM Conversion Formula
Cars · Sensors
JDM OBD1 ECU Hardware Reference
Cars · Diagnostics
OBD0 NEC BACK0004 Processor Reference
Cars · Diagnostics
OBD0 MPFI ECU Architecture
Cars · Sensors
Honda OBD1 ECU Knock Sensor Daughterboard
Cars · Diagnostics
OBD0 Vehicle Speed Sensor (VSS) Data Reference
Cars · Sensors
Modern Knock Detection Strategies for Honda ECUs
Cars · Diagnostics
OBD1 ECU Hardware Overview and Compatibility
Cars · Sensors
Knock Sensor Voltages
Cars · Diagnostics
Oki 80C154 Microcontroller Technical Reference
Cars · Sensors
OBD1 ECU Address Latch Reference
Cars · Diagnostics
Oki 83C154 Microcontroller
Cars · Sensors
Honda ECU Modification Historical Archive
Cars · Fueling
Fuel Injector Offsets Database
Cars · Fueling
Closed-Loop Fuel Control
Cars · Ignition
Knock Control Tuning
Cars · Tuning
Calibration Window Overview
Cars · Tuning
MAP Sensor Parameters
Cars · Tuning