Engine Control Unit (Ecu) - Porsche 911 GT3R 2010 Technical Manual

10.8. Engine Contr ol Unit (ECU)
10.8 .1. ECU DIAG
10.8 .2. MODA S
T he GT3 R is equipped with a Bosch MS 4.0 ECU specially developed for
motorsport applications. The Bosch MS 4.0 can be programmed with
special software. The ECU is programmed exclusively by Porsche
Motorsport. If an engine is overhauled by Porsche Motorsport the ECU
should be delive red with the engin to run them bot
dyn amometer.
As a safety precaution the ECU should always be d
wirin g loom and removed from
T he message 'ECU DIAG' is d
e rrors (sensors) o ccur at a
messa ge also indicates MS 4.0 system errors.
A special software (Bosch Modas), which can be purchased from Porsche
Motorsport, is required to dele
With the MODAS software various parameters can retrieved from the ECU
and modified.
In ad dition, errors occurring are sa
retriev ed for analys is.
T he Laptop used m ust have the following minim
 WINDOWS 98 , 2000, XP (NT is not supported)
 64 MB RAM
 233 M Hz Processor
 4 Gigabyte free hard disk space
Parallel Por t with vehicles older than 2008 otherwise USB

 CD–Rom drive
A copy of the MODAS user instructions is included with the car.
e
isconnected fro
the ca r if welding work is carried o
isplaye d in the MoTeC d h when electric
specific fre quency o r are always ac
te the e rrors.
ved in an error log that can be
um system requirem
h toge ther on the
m the
ut.
as
tive. The
ents:
120