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Sniper EFI 550-849
Holley Sniper EFI 550-849 User Manual
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1
• 2 Injector Sniper EFI (550
-849 Shiny, 550-850 Black, & 550
-851 Gold)
• 4 Injector 2300 Super Sniper EFI (550
-852 Shiny, 550-853 Black, & 550-854 Gold)
2
Table of Contents
Table of Contents
3
Introduction & System Requirements
5
Engine Requirements
5
Fuel System Requirements
5
Tools Required for Installation
5
Parts Identification
6
Throttle Body Installation
7
Oxygen Sensor Installation
9
Coolant Tempature Sensor Installation
11
Fuel System Connections
11
Sniper Efi Master Fuel System Install
12
Fuel Pump and Filter Installation
13
Return Line Bulkhead Fitting Installation
13
Fuel Line Installation
15
Hose Assembly
15
Ecu Wiring Overview
17
Basic Wiring Installation
18
General Wiring Reference
19
Throttle Body Connections
19
Pigtail & Loose Wire Connections
19
Connecting Sniper EFI Touchscreen LCD to Sniper EFI
20
Non Timing Controlled Ignition System Wiring
23
Coil (-) [No Timing Control]
23
Ignition Box Tach Output [No Timing Control]
24
Timing Controlled Ignition System Wiring
26
Timing Control Preface
26
MSD (Magnetic) Distributor [Timing Control]
26
Holley Dual Sync Distributor [Timing Control]
31
Handheld Navigation
37
Possible Screens
37
Initial Efi Setup
39
Calibration Wizards
39
Sensor Verification
43
Prestart Checklist
44
First Startup
44
After Startup
44
Ignition Timing Check [Without Timing Control]
45
Ignition Timing Check [ECU Controlling Timing]
45
Throttle Blade Adjustment
46
System Setup
47
Ignition System Setup
47
Basic Tuning
48
Basic Fuel
48
Target AFR
49
Acceleration Enrichment
49
Fuel Prime
50
Closed Loop Enable/Disable
50
Learn Enable/Disable
51
Basic Idle
51
Spark
52
System Tuning
52
Outputs
52
Engine Setup
54
Sniper Setup
54
Ignition Setup
55
Static Timing
55
Advanced Tuning
56
IAC Rampdown
58
Idle Spark
59
Idle Speed
60
Sniper Efi Monitor
61
Monitors
61
Multi-Gauge
61
Changing Monitor Channel Scaling
62
Custom Configuring Dash 1 Dash 2 or Dash 3
62
Nitrous Tuning on Handheld
63
Boost Control on Handheld
63
Advanced Tables on Handheld
63
Tuning Definitions
64
Datalogging & File Transfers
73
Taking a Datalog with the 3.5" TSCLCD
73
Downloading Global Configuration from Sniper EFI Throttle Body to SD Card
74
Loading Calibration into Sniper EFI ECU
74
Laptop Support
75
Viewing Global Configuration with Sniper EFI Software Without USB Cable
75
Viewing Datalog with Sniper EFI Software
76
Troubleshooting
77
Troubleshooting Guide
77
Sensor Verification
77
Sensor Diagnostics and Statuses
77
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Holley Sniper EFI 550-849 Specifications
General
Brand
Holley
Model
Sniper EFI 550-849
Category
Automobile Accessories
Language
English
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