Frequently Asked Questions
by Michael Decipha Ponthieux
Last Updated: 2-16-2016
What is the best Ford Tuner?
In short, there is no best! All tuning hardware does the same job, it replaces the current calibration on the ecu with its own.
As for software, they all do the same job, some software has access to more parameters than others and some software is
easier to use, however, all tuning software is basically the same minus the support for your specific vehicle/ecu your tuning with/on.
Hope this clears up alot of confusion, there is no "best", just "most appropriate".
Who is the best Tuner?
No tuner is any better than any other, the tuner's job is to get the most amount of torque out of an engine
as safely possible, this is done by adjusting ignition timing (spark) and air/fuel ratio, the tuner himself
cannot get any more power out of the engine than the engine is capable of, so no tuner is better than any
other tuner. However, some tuners can be overly conservative and some can be overly aggressive.
Your best tune will come from being completely honest with your tuner and giving him specifics on
how the vehicle will actually be used. This will make the tuners job easier and you'll be happier with the
results. Communication is key.
Can my tune cause a no start?
The EEC-IV and early EEC-V ecu's do not control the starter relay "solenoid", however if you have a 2003 - 2004 EEC-IV in a Maurauder, Crown Victoria, Grand Marquis and a few other explicit
advanced control ford vehicles then YES, a faulty tune will prevent the starter relay from engaging.
Can you always tune for more power?
No, an engine is a compressor its simply an air pump, horsepower is directly related to the airflow the engine can move,
in order to make more power the engine must move more air, this is a physical limitation that no amount of software or fingering
of a tune can compensate for.
Can I use a 94-95 Mustang V6 ECU to swap into my 5.0 foxbody?
No, the v6 ecu's only have 6 injector outputs, you can use an 8 cylinder ecu in a
6 cylinder or 4 cylinder engine, but you cannot use a 4cyl or 6cyl ecu in an 8cyl.
If you have a question you would like to have added to the faq, post it on the forum link below
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