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TIPS AND GENERAL INFORMATION 

 

• 

Several support features

 are located under the 

[Help] menu; some require an internet 
connection. 

 

• 

A comprehensive Tuning Manual

 in PDF 

format is included on the CD for viewing and 
printing from your desktop. 

 

• 

When the SmartLink program is opened,

 it 

will automatically retrieve and open the last map 
that was open. 

 

• 

Any time you link to your motorcycle:

 

Read

 

the map that is installed in the ThunderMax 
ECM by selecting 

[File]

 then 

[Read Module 

Maps and Settings]

 on the SmartLink toolbar. 

This will synchronize the map file loaded into the 
ThunderMax ECM with the SmartLink software. 

 

• 

2003 FLT/FLHT models:

  H-D® used 2 different 

speedometer calibrations during the extended 
2003 model production.  Which calibration you 
may need is easily identified by checking the 
part number on the back of your factory ECM.  
Calibration 

20480

 is used if the part number 

ends in -03, while 

4352

 is used if the ECM p/n 

ends in -02.  If your turn signals don’t cancel on 
a 2003 model, try the alternate setting. 

 

• 

2007-up Big Twin models:

  There are two 

settings in the [Module Configuration] [Basic 
Settings] page that should to be set to the 
following to enable the 6

th

 gear indicator light to 

function:      
   Final  drive  ratio

  [87;  84  for  06-07  Dyna®]             

 

                    

Gear 6 Min TPS 

[40]

.  

 

• 

Sportster® models:

  The 

[Main Relay Loc]

 

must be set to “1” under the 

[Basic Settings] 

[Module Configuration]

 page, or the engine will 

not start. 

 

• 

Accel Fuel

 is be used to tune throttle response 

(go to [Module Configuration] [Basic Settings]). 

 

• 

AFR Correction vs. Engine Temperature

 page 

is used to adjust cold start AFR’s.  It is active yet 
should be used with extreme caution.  Any 
changes made to this page affects all maps, at 
every throttle position, every 256 RPM’s!  See 
SmartLink Tuning Manual for procedures. 

 

• 

AFR vs. Engine Temperature

 is active yet at 

this time you should be discouraged from 
making any changes to this page. 

 

 

• 

Air/Fuel-TPS @ RPM

 These pages reflect 

desired targets of AFR to throttle position at 
every 256 RPM.  Example: if you desire a leaner 
mixture for added fuel economy then you can 
easily make multi-tiered AFR targets at specific 
throttle positions and RPM’s that will be learned 
during closed loop processing. 

 

• 

During warm-up,

 the AFR on both cylinders will 

be richer than the target AFR at normal 
operating temperatures; this is a normal part of 
the warm-up map.  AutoTune and its targets are 
inactive below 200 degrees. 

 

• 

Target air/fuel ratios

 can be viewed on the 

Air/Fuel-TPS @ RPM pages.  When these 
pages are open, you can view the target AFR by 
clicking on a dot and tapping the space bar to 
view the target at a specific throttle position for 
that RPM. Use arrow keys to raise/lower targets. 

 

• 

Writing new or modified maps

 to the module 

requires the system to be re-initialized (Step 7), 
and any existing learned fuel and IAC 
adjustments to be cleared (Map Editing, clear).  
Linking and editing an existing map within the 
module does not require above steps. 

 

• 

System Updates are available

 through 

SmartLink with an internet connection. 

 

Software, Firmware and Map updates can be 
downloaded; check frequently for updates. 

 

• 

In-Tank Fuel Filters

 should be inspected as a 

part of routine maintenance.  The filter is small 
and one bad load of fuel can clog it.  The factory 
recommended service interval is 25K miles. 

 

• 

Save your edited maps

 to your hard drive 

using the [Save As] command.  Document the 
changes in [Map Notes] located under [EFI 
Maps on the toolbar.  These notes are stored 
with the saved map; remember to edit them 
when making changes for future reference. 

 

• 

Oxygen Sensor Care:

 Items that can damage 

or shorten the life of your sensors:  

Leaded fuel – Race fuel 
Oil deposits from oil consumption problems 
Excessive moisture exposure 
Excessive (extreme) heat 

There is no warranty on sensors.  Replacement 
P/N is 309-355. 

 

www.Thunder-Max.com

 

Installation / Setup Guide V2009-04.23 

[email protected] 

7

Summary of Contents for Thunder-Max 309-365

Page 1: ...ounting location and space constraints on the Sportster for the ECM your ThunderMax system is supplied with a separate AutoTune module The ThunderMax ECM mounts in the same location as the factory ECM...

Page 2: ...learance Weld in bungs are available for exhausts systems not equipped with bungs or if current bungs present clearance issues Bungs should be located no more than 3 4 from the head pipe connection fo...

Page 3: ...and right click it All maps that do not match your selection will be filtered from the screen Second place your curser over the Throttle column and right click your match Third right click the Exhaust...

Page 4: ...e Settings Before performing this step clear any active Diagnostic Code readings While linked from the Tuning Tree select Module Configuration Diagnostic Codes When the Diagnostic Codes window appears...

Page 5: ...virtual stops will automatically be adjusted to the IAC target values set within the map s basic settings This feature automatically adjusts how the engine comes back to the specified idle speed If th...

Page 6: ...cell throttle position rpm AFR targets can be viewed and adjusted on these pages Use the left right arrow keys to navigate the individual blocks strike the spacebar to view the values use the up down...

Page 7: ...rom making any changes to this page Air Fuel TPS RPM These pages reflect desired targets of AFR to throttle position at every 256 RPM Example if you desire a leaner mixture for added fuel economy then...

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