Custom Code Tuning
by Michael Decipha Ponthieux
Last Updated: 2023-08-29
Custom code tuning is the MOST ACCURATE method of custom tuning a vehicle. This INCLUDES developing custom tuning software and support
for most 1983 - 2020 Ford, Lincoln, and Mercury vehicles possibly saving you hundreds (if not thousands) of dollars otherwise. However, you must have hardware to interface
with your ecu. Any custom functions or tables you need (or desire -- if within' reason) are included.
See the Getting Started Write Up for more details.
|PREFERRED TUNING DEVICES
|1996/1997 vehicles must use an SCT handheld device at this time.
|Drewtech Mongoose Pro Ford
|SCT - X2,X3,X4, etc..
HPTuners IS NOT SUPPORTED
An SCT handheld device may be used for 1996-current vehicles as well but is not recommended for 2004 and older vehicles as its logging capabilities are
severely lacking as compared to the moates quarterhorse.
- 1st) if you haven't already, you will need to register as a user on the EFIDynoTuning Forum.
The tuning service is an automated in-line que process that is performed through a private section of the forum accessible only by premium members.
- 2nd) Submit a *1-time $500 donation via paypal to firstname.lastname@example.org to upgrade your account to a premium membership. This donation is used to keep
the forum operational and to help aid in developing open source DIY support. Be sure to send your donation as PERSONNAL / FRIEND / FAMILY / GIFT only.
PAYMENTS ARE NOT ACCEPTED.
- 3rd) Fill out to the best of your knowledge the VEHICLE INFO SHEET. (Right-click and save-as / save link as)
Note: After downloading the vehicle info sheet txt file, right click and open vehicleinfo.txt with NOTEPAD. Fill in the information to the best of your ability/knowledge.
PM and email this text file to decipha.
- 4th) Once your information has been processed your account will be upgraded and your custom startup tune will be available in your private tune progress thread in
the premium member section of the forum. You will receive a private message through the forum informing you your custom tune is available.
Unrestricted Developmental Support
If you have an uncommon ecu that does not currently have tuning support it will be developed during this process.
I highly recommend submitting your donation and getting the tune started well in advance of when your project is expected to be completed.
There is no expiration on tuning.
Doing so sooner rather than later will expedite the process when the time comes to start your vehicle when your project is complete.
A wideband is not always required but is ALWAYS recommended! I only recommend AEM DIGITAL widebands with the digital gauge.
It is the most accurate wideband available for the price. Never use a wideband with an ANALOG ONLY gauge as they are proven to be far less accurate.
See the PRE-TUNE Info Write Up for more details.
There are 2 primary steps to dialing in the tune and a 3rd supplemental.
Step 1 - Idle Tuning & Low Load Fuel, Part Throttle Fuel and Spark
Step 2 - WOT Fuel, Spark, Load Scaling
Step 3 - Verify and Fine Tuning
On average most vehicles will be 99% dialed in and can be safely daily driven after step 2 is completed - usually within' 2 days. In unlikely circumstances,
depending upon scheduling, weather, engine tunability, communication errors, engine issues, diagnostics, etc.. this process can take longer, but the
tuning doesn't stop until the engine is dialed in.
Upload all datalogs through your private tune progress thread in the premium member section of the forum. After the log has been reviewed
an updated revision will be posted with further instructions. DO NOT email or PM datalogs.
DO NOTemail, PM or text critical information pertaining to the tune. All information MUST stay in your private thread.
How do we get started?
- Fill out and submit the VEHICLE INFO SHEET. You must be a member of the forum to proceed with the tuning process.
If you are not currently a member then CLICK HERE to register.
NOTE: NEVER SEND DATALOGS THROUGH EMAIL.
For ease of communication and for record keeping so everything stays organized and together, you will send all datalogs through the forum in your own Private Tune
Progress thread under the Premium Member subforum.
- If you hadn't already go ahead and sign up on the EFIDynoTuning Forum, you will need to be a member to
access your startup tune and updates.
- Send your donation of $500 to email@example.com SEND AS PERSONNAL / FRIEND / FAMILY / GIFT only.
All contributions go toward maintaining, updating, and adding content to the forum and website, all contributions are greatly appreciated
and aid in the continuing effort of open source DIY tuning for everyone. All monetary contributions will be reflected by member level status.
After your donation has been processed your account will be upgraded accordingly and if you become a PREMIUM MEMBER a private link will be sent to you
for the custom tuning process. This is most ideal as it keeps all communications in an easy to follow listing with a break down of the steps
needed to get your vehicle dialed in and the specific tune changes to go along with it. Your final tune will also be available to you at anytime and
as a pemanent backup. In the case of a laptop crash or laptop replacement you will always have access to your tune anytime anywhere. This process is
by far the most efficient method of custom tuning.
- In the meantime, check over the PRE-TUNE INFO to verify there are no discrepancies.
Cam, Head, Intake, Injector, Distributor, MAF, and all other equipment selections you have on your setup can be adjusted for in the tune. The
PRE-TUNE Information is provided to verify that you have sufficient fuel and air supporting mods for your specific combination and that nothing is
Custom Tuning Software
This process will be done using TunerPro RT.
In-depth details can be found in the Getting Started Write Up.
If using an SCT handheld device you will need the SCT device updater to upload .cef files to the handheld.
Typically, it usually takes about 4-5 iterations to get the vehicle 99% of the way dialed in. At least well enough to beat on.
If the vehicle is sound and there are no problems within' 2 days is typical. Cold starts, dashpot, startup enrichment, and isc
compensation can take quite a bit to dial in but is non critical and doesn't affect performance.
There is no expiration on tuning.
But what about a Dyno?
Dyno tuning should ONLY be done AFTER the tune is dialed in.
check out the Dyno Tuning Facts page to see if dyno tuning is recommended for your setup.
If you are in the New Orleans area dyno tuning can be provided after the vehicle is dialed in. A dyno strapping fee of +$125 will apply.
If you have additional vehicles to tune the 2nd is $300, 3rd is $150 and 4th and each there after is $100.
An additional link for each vehicle will be sent to keep everything organized.
Tune Services and Pricing
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