ECU Jobs Tools

EOI Software and SOI Calculator for Diesel Calibration

The ECU-Jobs EOI Tool is a free professional Windows utility for Common Rail diesel calibration. It supports operating point analysis, SOI, rail pressure and duration interpolation, End Of Injection calculation and SOI map generation directly from existing calibration data.

Download EOI Tool View ECU editor

✓Windows tool

↔WinOLS copy/paste workflow

✓Structured use

RPM2,800

IQ72 mg/stroke

Rail1,650 bar

SOI14.2 deg BTDC

Duration820 us

EOIGOOD

Target EOI to SOI GeneratorCalculate an SOI map from a desired target EOI

Calculated EOI? Keep the original and calibration as separate project versions, then check compatible Stage 1 and other tuning Solutions.

Open ECU-Jobs Suite Check compatible Stage 1

Overview

End Of Injection analysis directly from calibration data

The ECU-Jobs EOI Tool is a professional workflow aid for diesel calibrators, ECU tuners, WinOLS users and calibration teams. It makes common manual calculations around start of injection, rail pressure, injection duration and End Of Injection faster and easier to review.

The workflow follows real calibration work: SOI maps, rail pressure maps, duration maps and axis data can be transferred from existing calibration environments. From there, operating points can be evaluated, values interpolated and EOI results calculated.

ECU-Jobs Suite is a browser-based calibration workspace for ECU files, maps, project versions and compatible tuning Solutions. This tool page complements the platform with a technical resource for professional users working with diesel ECU software and Common Rail systems.

Tool interface

EOI Calculator with a WinOLS-style copy/paste workflow

The screenshot shows the real ECU-Jobs EOI Calculator interface: paste map data, analyze operating points and prepare target EOI to SOI maps.

Screenshot of the ECU-Jobs EOI Calculator with Map Data, Operating Point Analyzer and Target EOI to SOI Generator — The interface is designed for professional diesel calibration workflows and keeps the WinOLS-style copy/paste process for SOI, rail pressure and duration data intentionally lean.

Professional Calibration Utility

Structured Professional End Of Injection Calculator for Diesel ECU Calibration

The ECU-Jobs EOI Common Rail Tool was developed for diesel ECU tuners, calibration engineers and automotive software developers working with Bosch EDC17, EDC16 and many other Common Rail diesel engine management systems. It is not a generic calculator, but a practical calibration utility for daily professional workflows.

The tool simplifies injection timing analysis, calculates End Of Injection values and supports the development of optimized Start Of Injection maps directly from existing calibration data. This helps users evaluate injection events faster and reduce repetitive manual spreadsheet work.

Its workflow is built around real WinOLS usage. Map data can be copied from existing projects and pasted into the tool. It works with SOI maps, rail pressure maps, duration maps and axis data without necessarily requiring DAMOS, A2L files or manufacturer documentation.

Operating Point Analysis

Analyze operating points and understand injection events faster

Enter RPM and injection quantity

Calibrators define a concrete operating point using engine speed and injection quantity. The quantity can be used in mg/stroke or mm3/stroke depending on the calibration format.

Automatic interpolation

The tool interpolates Start Of Injection, rail pressure and injection duration from the pasted maps, then calculates the resulting End Of Injection value.

Evaluate timing relative to TDC

The results help users understand where combustion is occurring relative to top dead center and whether the operating point looks technically plausible.

Automatic EOI Calculation

EOI calculation for Stage 1, Stage 2 and custom diesel calibrations

SOI, rail pressure and duration as input

The integrated calculator determines End Of Injection from interpolated SOI, rail pressure and injection duration, giving a direct technical view of the injection window.

Identify optimization opportunities

EOI values support the review of Stage 1 and Stage 2 calibrations, hybrid turbo setups, large injector conversions, smoke reduction strategies and exhaust gas temperature management.

Check limits and consistency

The tool helps identify injection timing limitations, validate SOI adjustments faster and develop more consistent calibrations across the operating range.

Target EOI to SOI Generator

Generate SOI maps from a desired target EOI

One of the key features is the ability to generate complete SOI maps from a desired target EOI. Instead of calculating each area manually in spreadsheets, users can paste existing calibration data, define a target value and generate a recalculated SOI map.

The workflow is designed for professional users: paste existing SOI, rail pressure and duration data, define the target EOI and generate a complete working basis for further calibration. This accelerates development and reduces mistakes in repetitive spreadsheet work.

The generated values do not replace professional review, measurement or the calibrator's responsibility. They provide a structured basis to analyze injection timing faster and continue SOI strategy development in a more focused way.

Features

What the ECU-Jobs EOI Tool does

This page describes the professional feature scope. The ECU-Jobs EOI Tool is available as a free ZIP download and supports technical diesel calibration workflows.

SOI

Operating point analysis

Enter engine speed and injection quantity to analyze SOI, rail pressure, injection duration and EOI at specific operating points.

EOI

End Of Injection calculation

Calculate EOI from interpolated SOI, rail pressure and duration data for clearer combustion timing review.

MAP

SOI map generator

Generate complete SOI maps from a desired target EOI and reduce repetitive spreadsheet work.

OLS

Use WinOLS data

Copy and paste map data directly from WinOLS without requiring DAMOS, A2L or OEM documentation.

mg/stroke and mm3/stroke

Work with both common diesel calibration quantity formats and classify fuel quantity axes correctly.

Common Rail focus

Designed as an analysis aid for Bosch EDC16, EDC17 and many other Common Rail diesel platforms.

Workflow

From WinOLS data to EOI review

Paste map data

Transfer SOI, rail pressure, duration and axis data from the calibration environment.

Select operating point

Enter RPM and injection quantity, using either mg/stroke or mm3/stroke.

Interpolate values

The tool determines technical SOI, rail pressure and duration values for the operating point.

Calculate EOI

End Of Injection is calculated as a calibration indicator and made easier to evaluate.

Generate SOI map

A new SOI map can be generated from a target EOI as a working basis.

Use cases

For professional diesel and ECU software workflows

Stage 1 and Stage 2 calibration

EOI review helps evaluate injection timing more consistently during professional diesel calibration.

Hybrid turbo and injector setups

Changed hardware makes injection duration, rail pressure and combustion position especially relevant.

Smoke and EGT strategies

EOI analysis can help assess limits, temperature behavior and smoke tendency in a more technical way.

Compatibility

Typical platforms and users

Bosch EDC16 Bosch EDC17 Common Rail Diesel VAG Diesel BMW Diesel Mercedes-Benz Diesel Ford Diesel Opel Diesel PSA Diesel WinOLS users Suite workflows Calibration engineers

The tool is intended as a technical workflow aid. Calibration, legal assessment, dyno validation, vehicle condition and lawful use remain the responsibility of the professionals carrying out the work.

Legacy Download

Windows version remains available as a download

The ECU-Jobs EOI Tool remains available as a free ZIP download. The Windows version is no longer developed and remains a legacy utility for existing workflows.

Legacy version

No further Windows development

Future features, modernization and website embedding are handled through ECU-Jobs Suite: the ECU-Jobs Suite activate the browser-based Calibration Tools in the dashboard and generate the embed code there.

Download EOI Tool Open online tool

Download

Download the ECU-Jobs EOI Tool

The ECU-Jobs EOI Tool is available as a free ZIP download. The file size is 84.7 MB and the tool is intended for professional diesel calibration workflows.

Download EOI Tool Open ECU-Jobs Suite