Hondabase

Cars · Ecu

Honda OBD0/1 ECU Component List

Cars · Wiring

Honda OBD1 ECU Reference (1992–1995)

Cars · Wiring

Peak and Hold (Low Impedance) Injectors

Cars · Sensors

Adding 1-Wire VTEC Control to OBD0 ECUs (PM6)

Cars · Diagnostics

1991 PM6 ECU Diagnostic LED (CEL) Blinking Routine

Cars · Diagnostics

Speed Density

Cars · Ecu

USDM vs. Canadian OBD0 PM6 ECU Differences and ELD Bypass

Cars · Tuning

OBD0 Engine Control Units (1988–1991)

Cars · Wiring

Automatic to Manual ECU Conversion

Cars · Reference

PGMFI Administrative Contributors

Cars · Reference

Honda and Rover Technical Collaboration

Cars · Sensors

Guide to Honda ECU Hardware Modifications

Cars · Diagnostics

`29C256`

Cars · Diagnostics

1991 Honda PM6 ECU Reference

Cars · Sensors

Atmospheric Pressure (PA) Sensor Technical Reference

Cars · Diagnostics

Understanding Boost Cut

Cars · Sensors

Electronic Component Sourcing for ECU Repair

Cars · Diagnostics

Honda ECU Engine Simulator Reference

Cars · Sensors

Real Time Programming (RTP) Hardware

Cars · Diagnostics

OBD0 Code Compatibility

Cars · Diagnostics

OBD0 Stock ECU Serial Datalogging

Cars · Sensors

UberData Tuning Software Overview

Cars · Tuning

Modifying Target Idle RPM in OBD0 PM7 ECUs

Cars · Diagnostics

Real-Time Programming (RTP) for Honda ECUs

Cars · Diagnostics

Honda ECU Serial Communication Adapters

Cars · Tuning

Understanding Boost Pressure

Cars · Tuning

Turbocharger Boost Controller Reference

Cars · Tuning

check8 8-Bit ROM Checksum Utility

Cars · Tuning

Understanding the ECU Fuel Map Column Multiplier

Cars · Diagnostics

Throttle Plate Operation and Function

Cars · Tuning

Crome ROM Tuning FAQ

Cars · Tuning

Crome ROM Editor Overview

Cars · Tuning

DAC

Cars · Diagnostics

Honda ECU Chipping: Essential Tools and Hardware

Cars · Tuning

Understanding Dec At Addy

Cars · Diagnostics

WinHex Hexadecimal Editor for ECU Tuning

Cars · Tuning

Disabling VTEC VSS Check on P28 ECUs

Cars · Tuning

Dual-Map ROM Tuning for Honda ECUs

Cars · Ecu

SST27SF256 Flash Memory Reference

Cars · Tuning

Honda ECU Dual-Table ROM Structures

Cars · Ecu

74HC373 Octal Latch IC

Cars · Tuning

DIY Easy-RTP v1.0 Build and Installation Guide

Cars · Tuning

ECU Boost Control Implementation

Cars · Ecu

Understanding ECU Binary (.bin) Files

Cars · Tuning

ECU Nitrous Control Implementation

Cars · Ecu

Thread-Locking Compound Selection and Application

Cars · Tuning

Electronic Boost Controller Fundamentals

Cars · Tuning

Electronic Part Supplier Reference

Cars · Ecu

Chipping the OBD0 PM6 ECU (1988–1991 Civic/CRX Si)

Cars · Tuning

Fuel Cut Operation and Theory

Cars · Tuning

Ghetto Dyne Tuning Platform

Cars · Ecu

Honda ECU Chipping Visual Reference Guide

Cars · Ecu

Sourcing Memory Chips for Honda OBD0 and OBD1 ECUs

Cars · Tuning

Ideal Gas Law in Speed-Density Tuning

Cars · Tuning

Introduction to ECU Chipping

Cars · Tuning

Honda ECU Launch Control (Two-Step) Implementation

Cars · Tuning

Honda MAP Sensor Voltage Calibration Equations

Cars · Tuning

Multiprocessor Communication Protocols

Cars · Tuning

OBD0 Stock Datalogging Capabilities

Cars · Tuning

OBD0 Edit

Cars · Ecu

Honda ECU EPROM Compatibility Reference

Cars · Ecu

FLASH Memory Architecture

Cars · Ecu

Converting Intel HEX Files to Binary (BIN)

Cars · Ecu

Intel 8051 Development Reference

Cars · Tuning

Piggyback Engine Management Controllers

Cars · Ecu

Honda ECU Internal ROM Architecture

Cars · Ecu

Latch Logic and ECU Implementation

Cars · Tuning

Pocket Programmer 2 Technical Overview

Cars · Ecu

Honda ECU Microcontroller (MCU) Overview

Cars · Tuning

Atmospheric Pressure (PA) Sensor Reference

Cars · Ecu

OBD0 ECU Inter-Chip Communication and Memory Mapping

Cars · Tuning

Understanding Relative Pressure in Engine Tuning

Cars · Tuning

Read Only Memory (ROM) Architecture

Cars · Ecu

One Time Programmable (OTP) EPROM

Cars · Tuning

ROM Editor Overview

Cars · Tuning

Throttle Body Overview

Cars · Tuning

Turbocharger Fundamentals

Cars · Tuning

Turbo Compressor Map

Cars · Ecu

Red Loctite Thread-Locking Compound

Cars · Tuning

Introduction to TurboEdit (OBD0 Honda Tuning)

Cars · Tuning

Uberdata and ERM Tuning Editors

Cars · Ecu

ROM Emulator Technical Overview

Cars · Ecu

UV EPROM Erasure Procedures

Cars · Tuning

VTEC Crossover Point Calibration

Cars · Tuning

Technical Considerations for Retrofitting Knock Sensors

Cars · Tuning

Turbocharger Wastegate Operation

Cars · Tuning

Technical Limitations of Piggyback ECU Controllers

Cars · Tuning

Zero Insertion Force (ZIF) Sockets for ECU Tuning

Cars · Fueling

Fuel Pressure Tuning and Specifications

Cars · Wiring

1-Wire VTEC Conversion

Cars · Fueling

Mass Air Flow (MAF) Systems

Cars · Fueling

Volumetric Efficiency (VE)

Cars · Honda / Civic / Ef / Ecu

Chipping 1988-1989 OBD0 ECUs

Cars · Honda / Civic / Ef / Tuning

OBD0 5128 SRAM Technical Reference

Cars · Wiring

Clamping Diode Installation and Selection

Cars · Honda / Civic / Ef / Tuning

OBD0 PM6 & PM7 RAM Address Locations

Cars · Honda / Civic / Ef / Tuning

D51 Disassembler for Oki 8XC154 MCUs

Cars · Honda / Civic / Ef / Tuning

Honda PM5 ECU Technical Reference

Cars · Honda / Civic / Ef / Tuning

PM9 ECU Technical Reference

Cars · Wiring

ECU 0-5V Wideband O2 Input Modification

Cars · Tuning

Calibration Window Overview

Cars · Tuning

MAP Sensor Parameters

Cars · Tuning

Parameters Window Overview

Cars · Fueling

Closed-Loop Fuel Control

Cars · Ignition

Knock Control Tuning

Cars · Reference

Engine Compression Ratio Fundamentals

Cars · Wiring

OBD0 Oki 83C154 ROM Dumping Guide

Cars · Reference

Honda ECU Central Processing Unit (CPU) Overview

Cars · Wiring

OBD0 CN3 Serial Port Reference

Cars · Reference

NEC 2SD1780 Transistor Specifications

Cars · Wiring

OBD0 Automatic ECU to Manual Conversion

Cars · Reference

Detonation Resonant Frequency Calculation

Cars · Reference

Honda ECU Hardware Analysis: G-Spot Reference

Cars · Reference

Little Endian Memory Format

Cars · Wiring

OBD1 ECU: Auto to Manual Conversion

Cars · Reference

Octal Numbering System

Cars · Reference

Australian Domestic Market (OzDM) Vehicle Specifications

Cars · Reference

Honda PCF ECU Hardware Reference

Cars · Reference

Honda PCN ECU Hardware Reference

Cars · Reference

Random Access Memory (RAM) in Honda ECUs

Cars · Reference

Wide Open Throttle (WOT) Definition and Tuning Significance

Cars · Wiring

P05 OBD1 ECU Reference

Cars · Sensors

1991 PM7 ECU Technical Reference

Cars · Wiring

P07 OBD1 ECU Reference (Civic VX)

Cars · Sensors

A143 Transistor Specifications and Replacements

Cars · Wiring

P08 OBD1 ECU Reference

Cars · Sensors

Understanding Absolute Vacuum in Automotive Sensors

Cars · Sensors

Automatic Transmission Lockup Solenoid

Cars · Wiring

Printed Circuit Boards (PCB)

Cars · Sensors

8051 and Oki 66k Carry Bit (C) Reference

Cars · Sensors

C144 NPN Switching Transistor

Cars · Wiring

PP5 ECU Reference (Rover/Honda)

Cars · Sensors

C2785 NPN Switching Transistor

Cars · Wiring

Replacing M5128 SRAM with DS1220 NVSRAM

Cars · Wiring

Resistor Box Installation Guide

Cars · Sensors

Honda ECU Clock Speed Reference

Cars · Sensors

Cylinder Position (CYP) Sensor Operation and Diagnostics

Cars · Wiring

ROM Map Index

Cars · Sensors

DigiKey Electronic Component Sourcing

Cars · Wiring

Real-Time Programming (RTP) Project

Cars · Sensors

Disabling the VTEC Vehicle Speed Sensor (VSS) Check

Cars · Wiring

PGMFI SourceForge Repository

Cars · Wiring

Spark Plug Technical Reference

Cars · Sensors

Honda Distributor Operation and Function

Cars · Wiring

Throttle Position Sensor (TPS) Adjustment

Cars · Sensors

DIY Technical Philosophy

Cars · Wiring

USB-to-Serial TTL Adapters (`FTDI` / USBMOD3)

Cars · Sensors

Dual Overhead Camshaft (DOHC) Engine Architecture

Cars · Sensors

Dual Point Fuel Injection (DPFI) System Overview

Cars · Sensors

Dual-Point Fuel Injection (DPFI) Overview

Cars · Wiring

Engine Wiring Harness Reference

Cars · Sensors

Engine Coolant Temperature (ECT) Sensor Reference

Cars · Sensors

Honda ECU Sensors

Cars · Sensors

Electrical Load Detector (ELD) Operation

Cars · Sensors

Electronic Spark Advance Systems

Cars · Sensors

Electronic Advance Distributors

Cars · Sensors

Electronic Air Control Valve (EACV) Operation

Cars · Sensors

Honda ECU Engine Simulator Bench Testing

Cars · Sensors

UberData Engine Management (ERM) System

Cars · Sensors

Fuel Octane Ratings and Engine Performance

Cars · Sensors

Future Active Electronic Components Distributor

Cars · Sensors

Honda and Acura Factory Service Manuals

Cars · Sensors

VTEC High Cam Profile

Cars · Sensors

Intake Air Temperature (IAT) Sensor Reference

Cars · Sensors

Idle Air Control Valve (IACV) Operation and Diagnostics

Cars · Sensors

Intake Air Temperature (IAT) Sensor Specifications

Cars · Sensors

Honda ECU Input/Output (I/O) Architecture

Cars · Sensors

Modern Knock Detection Strategies for Honda ECUs

Cars · Sensors

OBD1 ECU Address Latch Reference

Cars · Sensors

VTEC Low Cam Profile

Cars · Sensors

MAX233 TTL to RS232 Level Translator

Cars · Sensors

Multi Port Fuel Injection (MPFI) Overview

Cars · Sensors

Digital Multimeter Fundamentals

Cars · Sensors

OBD0 Fuel Calculation Formula

Cars · Sensors

OBD0 Ignition Timing Conversion Formula

Cars · Sensors

OBD0 8-Bit Rev Limit and Restart Formula

Cars · Sensors

OBD0 and OBD1 VTEC RPM Calculation Formula

Cars · Sensors

OBD1 Honda P28 ECU Reference Guide

Cars · Sensors

OBD1 Honda P30 ECU Reference Guide

Cars · Diagnostics

Honda ECU Air Conditioning Control Routine Analysis

Cars · Diagnostics

Honda 6260A ECU Diagnostic LED Routine

Cars · Diagnostics

1991 PM6 ECU Target Idle Routine Analysis

Cars · Diagnostics

Oki 8XC154 A5h Opcode Analysis

Cars · Diagnostics

Understanding Absolute Pressure in ECU Tuning

Cars · Diagnostics

Application Programming Interface (API) Reference

Cars · Diagnostics

Auto Or Manual

Cars · Diagnostics

Batronix USB Programmer Technical Guide

Cars · Sensors

Honda PR3 ECU Reference Guide

Cars · Diagnostics

ECU ROM Checksum Calculation and Verification

Cars · Diagnostics

Troubleshooting Common TurboEdit (TE) Issues

Cars · Sensors

PS9 ECU Technical Overview

Cars · Sensors

Automatic to Manual Transmission ECU Conversion

Cars · Diagnostics

Diagnostic Trouble Code (DTC) Retrieval and Reference

Cars · Diagnostics

Disabling VTEC VSS Check on P30 ROMs

Cars · Diagnostics

Honda ECU Backup Processor Reference

Cars · Sensors

Pulse Width Modulation (PWM)

Cars · Sensors

OBD0 Honda PW0 ECU Reference Guide

Cars · Diagnostics

Honda OBD0 and OBD1 ECU Troubleshooting

Cars · Sensors

PW1 ECU Technical Reference

Cars · Diagnostics

EEPROM Technical Overview

Cars · Sensors

Pulse Width Modulation (PWM) in Honda ECUs

Cars · Diagnostics

Engine Coolant Temperature Sensor Reference

Cars · Sensors

Real-Time Programmable ECU Boards

Cars · Diagnostics

EFI Theory and Engine Management Reference

Cars · Sensors

Honda ECU Rev Limiter Operation

Cars · Diagnostics

Intel HEX File Format Overview

Cars · Sensors

Revolutions Per Minute (RPM) Signal

Cars · Diagnostics

Hondata ECU Tuning Systems

Cars · Sensors

Engine Revolutions Per Minute (RPM) Signal

Cars · Sensors

RS232 Serial Communication Protocol

Cars · Diagnostics

Honda Fuel Injector Test Circuit

Cars · Sensors

Technical Documentation and Resource Guidelines

Cars · Diagnostics

Joel Eck

Cars · Sensors

Real Time Programmability (RTP)

Cars · Diagnostics

Honda OBD1 ECU Label Identification

Cars · Diagnostics

OBD0 Limp Mode Diagnostics and Operation

Cars · Sensors

ECU Memory Sector Architecture

Cars · Diagnostics

Manual Checksum Correction for Honda ECUs

Cars · Sensors

Factory Service Manuals (Helms)

Cars · Diagnostics

Using Nico Analyze for ECU ROM Map Identification

Cars · Sensors

Single Overhead Cam (SOHC) Engine Architecture

Cars · Sensors

Spark Advance Fundamentals

Cars · Sensors

Spark Cut Ignition Strategies

Cars · Diagnostics

OBD0 VTEC ECU Reference: PR3 and PW0

Cars · Sensors

Static RAM (SRAM) Technical Overview

Cars · Diagnostics

OBD0 16-Bit RPM Conversion Formula

Cars · Sensors

Steve Wainstead Technical Contributions

Cars · Diagnostics

OBD0 NEC BACK0004 Processor Reference

Cars · Sensors

Super Chips Automotive Tuning Overview

Cars · Diagnostics

OBD0 MPFI ECU Architecture

Cars · Sensors

Top Dead Center (TDC)

Cars · Diagnostics

OBD0 Vehicle Speed Sensor (VSS) Data Reference

Cars · Sensors

Top Dead Center (TDC) Sensor Technical Reference

Cars · Sensors

Transistor-Transistor Logic (TTL) Reference

Cars · Diagnostics

Oki 80C154 Microcontroller Technical Reference

Cars · Sensors

Engine Tuning Concepts and Reference

Cars · Diagnostics

Oki 83C154 Microcontroller

Cars · Sensors

NEC uPD7004C Analog-to-Digital Converter

Cars · Sensors

Vacuum Advance Ignition Systems

Cars · Sensors

Vehicle Speed Sensor (VSS) Technical Reference

Cars · Diagnostics

PM6 Future ECU Code Module

Cars · Sensors

VTEC System Overview

Cars · Diagnostics

PM8 ECU Technical Reference

Cars · Diagnostics

Popol Vuh: Foundational ECU Documentation

Cars · Diagnostics

Pre-Ignition and Detonation (Engine Knock)

Cars · Tuning

Basic Concepts of Honda Engine Management

Cars · Diagnostics

DIY Engine Simulator for ECU Bench Testing

Cars · Diagnostics

Honda ECU Speed Limiter Operation

Cars · Diagnostics

Xeltek SuperProZ EPROM Programmer Technical Overview

Cars · Diagnostics

Throttle Position Sensor (TPS)

Cars · Diagnostics

Removing MAP Sensor Software Limits (Uncorking)

Cars · Diagnostics

Mugen XE5 ECU Technical Reference

Cars · Ecu

27C256 EPROM Specifications

Cars · Tuning

DIY Dual-ROM Setup (27C512 Jumper Switch)

Cars · Ecu

28C256 EEPROM Pinout and ECU Compatibility

Cars · Ecu

Honda ECU Identification and Compatibility FAQ

Cars · Ecu

EETools ChipMax Device Programmer

Cars · Tuning

Exhaust Gas Temperature (EGT) Sensor Overview

Cars · Ecu

Using and Modifying Bulb-Style Desoldering Irons

Cars · Ecu

Desoldering Tips & Best Practices

Cars · Ecu

Desoldering Tools for ECU Modification

Cars · Ecu

OBD1 Honda ECU Architecture and Memory Mapping

Cars · Ecu

Honda PGM-FI Engine Control Unit (ECU) Identification

Cars · Ecu

ECU Control Software Overview

Cars · Ecu

ECU Definition Codes

Cars · Ecu

Honda ECU Families & Generations

Cars · Ecu

Honda ECU Hardware Architecture

Cars · Ecu

EPROMer5 Device Programmer Technical Guide

Cars · Ecu

EPROMer5 Parallel-Port EPROM Programmer

Cars · Ecu

Honda Distributor Ignitor Replacement for Aftermarket Ignition

Cars · Ecu

Soldering Guide for ECU Modifications

Cars · Ecu

PM6 ECU (OBD0) Hardware and Code Reference

Cars · Ecu

OBD0 DOHC ZC PM7 ECU Reference

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 · Ecu

Locking Pliers (Vise-Grips) for Automotive Hardware

Cars · Fueling

High Impedance Injectors

Cars · Wiring

Atmel AT29C010 Flash ROM

Cars · Fueling

Fuel Injector Sizing and Selection

Cars · Wiring

5050s VTEC Conversion Fix

Cars · Fueling

Low Impedance Injectors

Cars · Wiring

A/C Thermostat Switch Bypass

Cars · Fueling

Manifold Absolute Pressure (MAP) Sensor

Cars · Wiring

Analog-to-Digital Conversion (ADC)

Cars · Fueling

Oxygen (O2) Sensor Technical Reference

Cars · Fueling

Tuning Honda ECUs for Smog and Emissions Inspections

Cars · Wiring

Atmospheric Pressure

Cars · Fueling

Understanding ECU Fuel and Ignition Maps

Cars · Wiring

BAR (Unit of Pressure)

Cars · Wiring

Calendar Plugin

Cars · Wiring

Check Engine Light (CEL)

Cars · Wiring

Combustion Chamber

Cars · Wiring

Cruise Control Switch for Full Throttle Shift (FTS)

Cars · Wiring

D16Z6 Swap Guide: OBD0 Chassis

Cars · Wiring

Desoldering Braid

Cars · Wiring

Honda OBD0 to OBD1 Wiring Conversion Guide

Cars · Wiring

Mass Air Flow (MAF) Sensor

Cars · Wiring

MCU Readers and ROM Dumping

Cars · Ignition

Crankshaft Position (CKP) Sensor Operation

Cars · Wiring

DIY Datalogging Cable (Nokia FBUS Modification)

Cars · Wiring

NVSRAM Technical Reference

Cars · Ignition

Knock Sensor Operation and Diagnostics

Cars · Wiring

Oxygen (O2) Sensor Heater Circuit

Cars · Ignition

Tuning Ignition Timing on Honda ECUs

Cars · Wiring

Honda OBD Generations Guide (OBD0 to OBD2)

Cars · Reference

Camshaft Profile Fundamentals

Cars · Wiring

OBD0 ECU ROM Map Conversion Formulas