Haltech E6GMX - Manual (Page 89)

E6GMX Manual
89
A.1 Control Program Problems
Haltech Programming Software will not start
The Haltech programming software should run on any computer that meets the requirements
outlined in 2.1 Computer Requirements, p13. If for any reason the programming software will
not start up reinstall the software and double check the computer specifications.
Haltech programming software will not run ONLINE
If the Haltech ECU does not respond to the Programming software requesting information,
then the message HALTECH DISCONNECTED will be displayed. This situation will occur
under the following conditions
ECU is not powered up
Programming Cable is not connected
Incorrect COM port selected
Wrong Programming Software
Programming Cable is damaged
Serial port of programming computer is faulty.
If the software is the wrong version or you suspect that the cable is faulty, contact your
Haltech dealer.
Engine Data Page Displays Unusual Readings
If the air temperature sensor, or coolant temperature sensor is showing a continuos maximum
or minimum then the sensors are either not operating correctly or are disconnected. Using the
wiring diagram of the ECU Loom (wiring diagram can be found at the back of this manual)
check that the sensor wires are not damaged. Check for continuity or high resistance with a
multimeter. If the wiring is OK then contact your Haltech dealer regarding replacement of
faulty sensor.
If the Throttle Position Sensor is unresponsive or is erratic then re-calibrate the throttle sensor
and check the wiring. Erratic readings can be caused by damaged sensor or electrical noise.
If the Manifold Absolute Pressure Sensor does not read near atmospheric pressure with the
engine off, or if it shows a fault condition, then check that the sensor is connected correctly.
Check that you have the correct model sensor and that the Identification page information has
been set correctly.
If the Engine Speed reading is erratic, the trigger (crank or cam signal) is most likely picking
up ignition noise from incorrect plugs or leads, electrical noise from cooling fans, starter
motor, alternator or other electrical devices in the vehicle. Ensure that the trigger signal wire
is properly shielded and that the shield is not grounded at the sensor end.
If the Engine Speed is steady but wrong, check that the Identification page contains the
correct information regarding number of cylinders, crank sensor set-up and crank sensor
wiring is correct.
If engine parameters are all showing unusual variation, make sure that the ECU is grounded
properly. Also check the engine and chassis grounds to the battery.