HotStartR is a lightweight Windows utility for offline review and adjustment of hot-start related calibration areas in supported ECU files.
It is commonly used to test for hot-start map issues, adjust start fuel amount values, and export an updated file for controlled evaluation.




Summary Highlights

• Open an ECU calibration file for offline processing
• Select vehicle make and ECU profile to match supported definitions
• Run a hot-start problem check using the built-in Test function
• Edit start fuel amount values within the supported profile scope
• Apply a hot-start map repair action and review the Summary output
• Save an output file for documentation and evaluation workflows

Package contents

• HotStartR.exe
• Hotstartr.txt

Compatibility notes
This is an offline file utility and it does not diagnose a vehicle by itself.
Results depend on ECU family, software version, and the input file format.
Availability varies by vehicle and firmware.

Supported ECU blocks (as provided):

• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC15P
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC15V
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC15VM
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC16U
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC16U1
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC16U2.1
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC16U31
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC16U34
• AUDI - SEAT - SKODA - VOLKSWAGEN: BOSCH - EDC17CP14
• AUDI - SEAT - SKODA - VOLKSWAGEN: SIEMENS - PPD1.x
• FORD: BOSCH - EDC15P

Basic usage

• Create a backup of the original file and work on a copy only
• Open HotStartR and load the ECU file
• Select the correct vehicle make and ECU profile
• Run the hot-start test, review the Summary, and adjust start fuel amount if required
• Save the output file with a clear name for traceability

Operating systems

• Windows 11 (64-bit, compatibility mode may be required)
• Windows 10 (32-bit and 64-bit)
• Windows 8.1 (32-bit and 64-bit, legacy)
• Windows 7 SP1 (32-bit and 64-bit, legacy)

Minimum system requirements

• CPU: Dual-core 2.0 GHz or faster
• RAM: 2 GB minimum, 4 GB recommended
• Storage: 200 MB free space plus room for backups and exported files
• Network: Not required
• Admin rights: Recommended for file access permissions

Disclaimer
Source of Files. All software and resources in this post are collected from public and open sources on the internet. We do not claim authorship or ownership.
File Hosting. This forum does not host files. All links point to third party public cloud storage. We are not responsible for external content.
User Responsibility. Software is provided for educational and evaluation purposes only. You use it at your own risk. Authors of the post and forum administration are not liable for any damage.