MegaSquirt 2 Manuals

Manuals and User Guides for MegaSquirt 2. We have 1 MegaSquirt 2 manual available for free PDF download: Setting Up

MegaSquirt 2 Setting Up (117 pages)

Brand: MegaSquirt | Category: Control Unit | Size: 3.53 MB

0: Quickstart Guide - in Brief
2
Table of Contents
3
0: Contents
3
1: Introduction
9
Emissions and Disclaimer
9
Required Tools
9
How to Use the Manuals
9
Products Covered
10
MS2 on V2.2 Mainboard
10
MS2 on a V3.0 Mainboard
10
MS2 on a V3.57 Mainboard
11
Microsquirt
11
Microsquirt-Module
12
Copyrights
12
2: Quickstart Guide - Expanded
13
Buy or Build Your Megasquirt
13
Select and Assemble Your Fuel and Ignition Systems
13
Setup Your Vehicle Wiring Harness (Loom) Ensuring It Is Fused
13
Connect MAP Hose to Full Vacuum Source
13
Install Tunerstudio and Megalogviewer
13
Power up Your ECU
13
Get the Serial Comms Set up
13
Turn off "Hide Extensions for Known Files Types" (Windows Only)
16
Install the Firmware if Required
17
Get Your Tuning Computer to Talk to the ECU
18
Tunerstudio Basics
23
Firmware, Tunerstudio, Tune Files (MSQ) - What's All that
24
Version Numbers
24
Mainboard Version
24
Firmware Version
24
Tunerstudio Version
25
Megalogviewer Version
25
Operating System Version
25
Setup Sensor Calibrations to Match Hardware
25
Calibrate TPS
25
Calibrate Map/Baro
26
Unlock Calibrations
27
Calibrate CLT and MAT Sensor
27
Calibrate AFR Table (O2 Sensor)
28
Lock Calibrations
29
Check All Sensor Inputs Are Reading Sensibly in Tunerstudio
29
MAP Sensor Check
29
TPS Check
29
CLT Sensor Check
29
MAT Sensor Check
29
O2 Sensor Check
29
MAF Sensor Check
29
Battery Voltage Check
29
Set the Base Settings
30
Control Algorithm Choice
31
Engine and Sequential Settings
32
Injector Dead-Time
32
Ignition Setup
33
Idle Valve
33
Other Inputs/Outputs
34
Gauge/Setting Limits
34
Power Cycle Required
34
Configuration Error
35
Use the Test Mode to Confirm Injectors and Coil(S) Are Functioning
36
Injector Testing
36
Coil Testing
36
Fuel Pump Testing
37
Idle Valve Testing
37
Using the Test Mode to Determine Stepper Homing Steps
38
Check for Crank/Cam Tach-In Signals
39
Check for RPM Input
41
Check Sensors During Cranking
41
Sample Datalog
41
Check the Cranking Timing with Fuel Disabled
41
Start the Engine and Start Tuning
42
Run Engine up to Temperature
43
Setting Running Timing
43
3: Tuning the Engine
45
How It Works - Fuel
45
Cranking Mode
45
Run Mode
45
How It Works - Ignition
47
Cranking Mode
47
Run Mode
47
Tables and Curves
48
Tuning Fuel
48
Tuning Fuel - Speed Density
48
AFR Table (SD)
48
VE Table (SD)
49
Tuning Fuel - Percent Baro
51
Tuning Fuel - Alpha-N
51
Tuning Fuel - MAF
51
MAF Transfer Curve
51
AFR Table (MAF)
52
VE Trim Table (MAF)
52
Mafload
53
Tuning Fuel - ITB
53
ITB Load TPS Switchpoint Curve
54
ITB Load at TPS Switchpoint Curve
54
AFR Table (ITB)
54
VE Table (ITB)
54
ITB Technical
54
Basic Acceleration Enrichment (AE) Tuning
56
Main Accel Enrich Settings Menu
57
Time-Based Accel
57
Getting It Dialed in
57
Startup / Warmup Fueling
59
Priming Pulse
60
Cranking Pulse
60
Afterstart (ASE) Percentage Adder
60
Afterstart (ASE) Taper
60
Warmup Enrichment Percent Multiplier
60
Putting It All Together
60
Tuning Spark
61
Getting a Good Idle
62
Correct Fuel (Mixture)
62
Correct Timing
62
Correct Airflow
62
Datalogging
63
Starting a Datalog
63
Stopping a Datalog
63
4: Advanced Topics
64
Sequential Fuel
64
Configuration
65
Injector Timing
65
Sequential/Semi-Sequential Timing
65
EGO Control
67
Simple Algorithm with Narrowband Sensor
67
Simple Algorithm with Wideband Sensor
67
PID Algorithm with Wideband Sensor
67
Wankel Rotary Engines
68
Closed-Loop Idle
68
Enhanced Accel Enrichment (EAE)
70
Tuning EAE
71
Boost Control
72
Solenoid Connection
72
Open-Loop Tuning Tips
74
Closed-Loop Tuning Tips
74
Nitrous Oxide (N2O)
75
System Types
75
Connection
76
Tuning Considerations
76
Variable Valve Timing (VVT, VCT, VTEC, VANOS)
77
CAN Bus Expansion
77
CAN Protocol
77
Device-To-Device
77
Passthrough
78
CAN Wiring
79
CAN Settings and Data Types
79
PWM Polling
79
Digital Ports
79
PWM Outputs
79
Canadcs
79
CAN Broadcasting
80
Example Settings - Jbperf Ioextender
80
Example Settings - Other Devices
81
Reading and Datalogging an Additional Sensor
81
Wiring
81
Tunerstudio Custom.ini
81
Lookup Table .Inc
82
Programmable On/Off Outputs
83
Bitwise Operations
83
5: Troubleshooting
85
Resets
85
RPM-Sync Issues
85
Lost Sync Reasons
86
Noise Filtering
88
Noise Filter
90
Tach Interrupt Masking
90
Tach Period Rejection
91
Polarity Check
91
Communications Issues
92
Windows Device
92
Mac OS X Device
92
Linux Device
93
Loopback Test for Serial or USB-Serial Cable
93
Loopback Test to Megasquirt Board (Not Microsquirt)
94
Comms Test to Megasquirt / Microsquirt
94
6: Appendix A: Firmware Upgrade Notes
96
Firmware Versions
96
Alpha, Beta, Release Code? What's the Difference
96
Upgrading from 3.3.X
96
Upgrading from 3.2.X
97
Upgrading from 3.0.X or 3.1.X
99
Upgrading from 2.1.0
99
Upgrading from MS2/BG
100
Upgrading from Ms1/Extra
101
Upgrading from MS1 (Base)
101
7: Appendix B: Fuel Calculations
103
Terms Used
103
Speed Density
103
Alpha-N (Pure)
103
Alpha-N (Hybrid)
103
Baro
104
Maf
104
8: Appendix C: Megasquirt Glossary of Terms
105
9: Appendix D: Text-Based Firmware Loader
112
Windows / General
112
Mac / Linux
116
Steps after Loading Firmware
116
10: Revision History
117

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