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TABLE OF CONTENTS INTRODUCTION
OPERA
TING INSTRUCTIONS APPENDIX
SERVICE CENTER AND COMPATIBILITY CAUTIONS
CAUTION: Return your vehicle to stock before taking it to a service center.
All Edge programmers are built to operate with OEM calibrations. If you take
your vehicle to a service center they may, by your request or otherwise, up-
date your vehicle’s calibrations. If this happens and your vehicle has not been
returned to stock your device will no longer be capable of programming your ve-
hicle. Therefore it is important that you return your vehicle to stock before tak-
ing it in for service. Edge updates its active products (i.e. those currently being
manufactured) to work effectively with updated OEM calibrations. However,
this process can take some time as Edge is not always made aware of calibration
changes made by the OEM. In the case of discontinued products, Edge cannot
ensure that your unit will work effectively if you take your vehicle to a dealer-
ship and you are given, by your request or otherwise, a new calibration.
CAUTION: If you have used another tuner/programmer on your vehicle, you
will need to program the vehicle back to stock and remove the device before
using the Edge Product. Failure to return to stock may result in PCM failure
or engine damage. Programming your vehicle may expose existing defects in
the vehicle’s PCM that could disable your vehicle. It is advised that you do not
program your vehicle in remote locations in case of vehicle failure.
CAUTION: The Evo HT programmer was developed on a stock vehicle with
no aftermarket bolt-on parts; as such, the performance changes implemented
by the Evo HT may not be compatible with certain aftermarket power add-ons.
See below for a brief explanation of how the Evo HT tuning may be affected
by certain aftermarket devices.
COLD AIR INTAKE (CAI) KITS
Most modern-day vehicles use a Mass Air Flow (MAF) sensor. The MAF
sensor is generally located in the intake tube close to the factory air box. MAF
sensors play a key role in determining the amount of fuel an engine needs at any
given throttle position. MAF sensors are precisely calibrated for the factory
intake systems; changes in intake tube diameter, sensor placement, or fi lter fl ow
characteristics can adversely affect the reading from the MAF sensor.
MECHANICAL MODIFICATIONS
Mechanical modifi cations such as headers, upgraded camshafts, displacement
changes, cylinder head improvements etc., will change the airfl ow characteris-
tics of an internal combustion engine. The Evo HT is not tailored to take advan-
tage of these modifi cations, for the best results we recommend vehicle specifi c
custom tuning.
