Innovate Motorsports LM-1 Digital Air/Fuel Ratio (Lambda) Meter - Manual (Page 16)

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Under some rare circumstances it is possible that the heater calibration data in the LM-1 can
become partially destroyed. This can manifest in the above-mentioned errors. Follow the steps in
chapter 3 ‘First time use’ to reset the heater calibration data.
9.7. Sensor Timing Errors
These errors are typically encountered when the sensor does not have outside air available as
reference gas. If you encounter this error, restart the LM-1 and operate the sensor in free air. If
you still encounter this error, the sensor may be bad and needs to be replaced.
Replacement sensors are available from your nearest VW dealer under the VW part-number
021-906-262-B or direct from Innovate Motorsports.
Sensor timing errors are also common when the sensor overheats. Relocate the sensor further
downstream in the exhaust, install a heat sink or Heat-Sink Bung extender (HBX-1).
Sometimes it’s possible to encounter Error 08 when the exhaust gas suddenly gets too rich.
Normally the LM-1 will display a ‘too rich’ indication if the exhaust gas is too rich. If the mixture
gets rich very suddenly, the LM-1 cannot distinguish between a too rich condition and a sensor
timing error.
9.8. Other tricks
The LM-1 has two different functions for the record and calibration button when it runs off it’s
internal 9V battery (12V disconnected):
1. Calibration button:
Shows firmware version and sensor type used.
2. Record button
Pressing the record button with an RPM converter connected shows the RPMs read by the RPM
converter.
Note:
If the RPM converter is programmed for RPMs greater than 10230 (see RPM converter manual),
the shown RPM’s will be ½ of the real RPMs.
9.9. Analog Output tricks/hints
Very often there is a ground offset between the device that receives the analog output voltage
and the LM-1. Both devices reference different grounds and therefore see different voltages. So
to compensate for the ground offsets the analog output voltage points have to be shifted by the
ground offsets. To measure what the real ground offset is, you can program the analog outputs
temporarily to output a flat line voltage by entering the same voltage in both fields for the two
analog out programming points. This way the analog output voltage will be fixed, independent of
current AFR and can therefore be measured and compensated for easily
Note:
The analog outputs are NOT designed to power other devices or sensors.
So using the flat-line setting at 5V and expecting to power a sensor from it
will not work and can damage the LM-1.