FAQ
This FAQ will be updated as questions are
received and processed by EFILive.
What is the difference between EFILive V4 Evaluation and
EFILive V4 Professional versions?
See Pro vs Eval.
How
do I obtain a license for EFILive V4?
Purchase
a Professional license or
Download a free evaluation license.
Why do I see a the following dialog box when I first
start EFILive V4?

The first time you run EFILive V4 the Scales.xml file
will not exist. EFILive will create it for you when you click on OK. The message has been left in the
software because under certain conditions the Scales.xml file sometimes gets deleted. If you see this message
and it is not the first time that you have started EFILive V4, please contact
EFILive support at support@EFILive.com.
You should always make a backup of the Scales.xml file
whenever you change any scale formulas. That way if the Scales.xml file is wrongly deleted you can recover your
scale formulas easily.
Why are some series in the charts' display grayed out?
You are using the evaluation version which is limited to
displaying only one series on each of the four charts.
See Pro
vs Eval.
Why are some dashboard items grayed out?
You are using the evaluation version which is limited to
displaying only two dials, two sliders and three lights.
See Pro
vs Eval.
Why can I only see eight ALDL items?
You are using the evaluation version which is limited to
displaying only eight ALDL items.
See Pro
vs Eval.
Why can I only see eight
DTCs?
You are using the evaluation version which is limited to
displaying only eight DTCs.
See Pro
vs Eval.
Why can I only see eight Bit Flags?
You are using the evaluation version which is limited to
displaying only eight Bit Flags.
See Pro
vs Eval.
Why do I get Com
timeout: Data frame truncated errors?
This error usually occurs because
EFILive V4 stops reading data from the ALDL connector too soon. To make
EFILive V4 wait longer, so that the data frame is received in full,
increase T3 timeout setting.
Why do I get Com
timeout: Data frame truncated errors?
This error usually occurs because
EFILive V4 stops reading data from the ALDL connector too soon. To make
EFILive V4 wait longer, so that the data frame is received in full,
increase T3 timeout setting.
I
am using Windows NT or Windows 2000, why can't I start my vehicle once the cable
is connected between the computer and the vehicle?
Windows
NT and Windows 2000 scan the serial port for serial mice whenever it is not
being used by EFILive V4. Do not turn on the ignition nor attempt to start your
vehicle until after
EFILive V4 is running.
See Bug report: EFI4.1-0013
Why
does the Malfunction Indicator Lamp (MIL) illuminate while I am logging ALDL
data to my computer?
To
achieve fast data transfer rates, EFILive V4 will take control of the serial
bus. This means that the BCM stops transmitting data to the ECM/PCM. The ECM/PCM
displays a warning by illuminating the MIL that it cannot establish serial
communications with the BCM. This may also be accompanied by the electric
cooling fan being switched on.
Once EFILive V4 stops logging ALDL
data the MIL light should be extinguished and the electric cooling fan should
stop. The Diagnostic Trouble Codes (DTC) may be cleared using the appropriate
command. Future versions of EFILive V4 will be designed to
prevent this problem from occurring.
Will
EFILive work with my vehicle?
EFILive
V4 is designed to work with ALL vehicles that use a GM, Delco-based 8192 or 160 baud
ECM or PCM.
Vehicle
requirements.
US based vehicle requirements.
Is
there a quick way to enter vehicle definitions?
Yes,
see the following topics:
Pasting Attributes.
Is
there a quick way to enter DTCs, Bit flags and Enumerations?
Yes,
see the following topics:
Pasting DTCs
Pasting Bit Flags
Pasting Enumerations.
I
am running EFILive V4 on a slow laptop, is there any way to speed up the data
logging process so that I can achieve 10 frames (or greater) per second?
To
obtain the highest frame rate possible while logging or displaying data you can choose
to disable selected tab pages. The tab pages, which display: Macros (F6), Aldl
(F7), Dashboard (F8), Charts (F9), DTC (F10) and Status flags (F11) can be
individually enabled or disabled by using SHIFT-Fn where Fn is the function key
for the tab page.
So to disable the Macros (F6) display you would
press SHIFT-F6. To re-enable the Macros (F6) display you would press SHIFT-F6
again.
Why
does EFILive V4 always use 100% of the CPU when it is logging data?
The
Windows operating system is not a true "real-time" operating system.
In order to achieve accurate timings it is necessary to "take over"
the CPU. It is also important not to relinquish control of the CPU to other
tasks. For this reason you must not attempt to run any other software while
using EFILive V4 to display or log vehicle data.
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