Appendix E: Error Codes And Troubleshooting Tips - Innovate Motorsports MTX-L User Manual

Appendix E: Error Codes and Troubleshooting Tips

Error Error Message
Code
Error 1 Heater circuit
shorted
Error 2* Heater circuit
open
Error 3 Pump cell circuit
shorted
Error 4 Pump cell circuit
open
Error 5 Reference cell
circuit shorted
Error 6 Reference cell
circuit open
Error 7 General System
error (typically a
software error).
Error 8 Sensor Timing
error (typically a
damaged
sensor).
Error 9 Supply Voltage
too low
* Whenever Error 2 is displayed, existing sensor calibration data is discarded.
20
Likely Root Cause
1. Short in cable
2. Short in sensor
1. Damaged sensor cable.
2. Cable connector not fully seated
3. Sensor Damaged
1. Short in sensor cable
2. Short in sensor
3. Sensor overheating
4. EGT >1700º F
1. Damaged sensor cable.
2. Cable connector not fully
seated
3. Sensor Damaged
1. Short in sensor cable
2. Short in sensor
1. Cable connector not fully
seated
2. Damaged sensor cable
3. Damaged Sensor
Software error
1. Sensor overheating.
(The Bosch LSU4.2 is rated to
operate at a sensor housing
temperature of < 900 degrees
(measured at the bung) for
maximum accuracy and control.
When this operating temperature
range is exceeded, the sensor can
no longer be accurately
controlled.)
2. Sensor is damaged
3. Overly Rich condition
Supply voltage too low for sensor
regulation
Fix
1. Repair/replace cable.
2. Replace sensor.
1. Inspect sensor cable for rips or tears.
2. Verify Sensor is fully seated into
connector, make sure it 'clicks.'
3. Replace Sensor
1. Repair sensor cable.
2. Replace sensor.
3. Move your sensor bung as far
downstream as possible OR add a
heatsink to isolate the sensor from the
pipe.
1. Inspect Sensor cable for rips or tears.
2. Verify Sensor is fully seated into
connector, make sure it 'clicks.'
3. Replace Sensor
1. Inspect sensor cable for rips or tears.
2. Replace sensor.
1. Verify Sensor is fully seated into
connector, make sure it 'clicks.'
2. Inspect sensor cable for rips or tears.
3. Replace sensor
Reboot MTX-L by cycling power.
Reload firmware if necessary.
1. a. Perform sensor heater
recalibration; b. Move your sensor
bung as far downstream as possible.
Right before the cat, or 2-3 feet from the
end of the tailpipe are good locations; c.
Add a heatsink to isolate the sensor
from the pipe. The HBX-1 is an
available accessory.
2. Replace sensor.
3. Correct Tune and recalibrate the
sensor.
Check your 12V connection for corrosion.
MTX-L_Manual.doc