Haltech Platinum Interceptor - Manual (Page 4)

Interceptor Manual
4
Why does the factory ECU need to be retuned?
All factory ECUs control the amount of fuel injected into an engine, as well as the ignition
timing of the engine. In addition, many factory ECUs also control features like turbo boost
pressure, variable cam timing, and many other modern engine features that affect engine
performance. Car manufacturers do not set out to deliberately detune the engine, but there are
often many requirements aside from engine performance that the tuner of the factory ECU must
meet. Most of these requirements are to the detriment of engine performance:
•
Emissions targets.
•
Durability under worst-case conditions (high ambient temps with poor car maintenance).
•
Minimization of warranty claims.
•
Need to provide lower engine performance in lower priced models.
Even if the factory ECU does tune the engine optimally for performance, it is unlikely that the
standard factory ECU will run the engine optimally if the engine receives performance
modifications.
Haltech recognizes that many performance car enthusiasts prefer to gain increased engine
performance rather than retain worst-case safety tunes. Other enthusiasts prefer to take this
further to perform mechanical engine modifications aimed at increasing engine performance and
then require the ECU to be tuned to optimize the modifications.
The Haltech interceptor is designed to offer the cheapest and most effective way of achieving
retuning of the factory ECU to meet the requirements of the modern performance car enthusiast.