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Contents
42 guides
Welcome
FAQs
Hot Keys
Impact ECU Instructions
Updated
1
Introduction to Impact ECU
3
guides
Section overview
Overview
Connecting To TunerStudio
Updated
Safety and Compliance Information
2
Software Setup and Usage
6
guides
Section overview
File Menu in TS
Options Menu in TS
Data Logging Menu in TS
Communications Menu in TS
Tools Menu in TS
Help Menu in TS
3
Tuning Overview
27
guides
Section overview
A
Setup Button
6
guides
Section overview
Overview
Vehicle Information
Limits and Protections
Trigger
Advanced Trigger
Outputs
B
Fuel Button
7
guides
Section overview
Fuel Button Overview
Injection Configuration
Front & Rear VE Tables
Target AFR Table
Short Term Fuel Trim
Deceleration Fuel Cutoff (DFCO)
Acceleration Enrichment Settings
C
Ignition Button
4
guides
Section overview
Ignition Button Overview
Ignition Settings
Ignition Advance Table
Dwell Settings
D
Cranking Button
5
guides
Section overview
Cranking Button Overview
Cranking Settings
Cranking Fuel Multiplier
After Start Enrichment
Cranking Idle Air Engine Temp Multiplier
E
Idle Button
5
guides
Section overview
Idle Button Overview
Idle Settings
Target RPM
Open Loop Idle Curve
Closed-Loop Idle Spark
4
Tuning Strategies
1
guide
Section overview
Auto Tuning Guide - VE
5
Advanced Features
1
guide
Section overview
A
Flex Fuel
1
guide
Section overview
Enabling Flex Fuel On Impact ECU
Recently updated
Impact ECU Instructions
· Sep 27, 2026
What's new
Home
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3 Tuning Overview
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D Cranking Button
D
Cranking Button
5 guides · read in order or jump in
Guides
Cranking Button Overview
1 page · Jul 21, 2025
v1.0
Cranking Settings
2 pages · Jul 21, 2025
v1.0
Cranking Fuel Multiplier
1 page · Jul 21, 2025
v1.0
After Start Enrichment
1 page · Jul 21, 2025
v1.0
Cranking Idle Air Engine Temp Multiplier
2 pages · Jul 21, 2025
v1.0
Next group
E
Idle Button
5 guides · updated Aug 11, 2025
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42 guides