07-11-2009, 09:30 PM #1
I need some help with O2 sensor calibration with LM-2
I got my LM-2 all hooked up yesterday and calibrated per the instructions:
2.1 Sensor Calibration7. The LM-2 is calibrated and ready for use.
The calibration procedure requires that the oxygen sensor be in free air, not in the
1. Connect the oxygen sensor to the provided sensor cable and then to the
appropriate port on the LM-2. Note: The dual channel LM-2 model allows you to
connect both oxygen sensors to the unit at the same time to do the calibration
2. Connect the LM-2 to the cigarette power plug with the provided cigarette power
3. The sensor(s) will start warming up. The LM-2
will display WXX, where XX is the percentage of
temperature reached. Notice the status bar
displaying a ‘W’.
4. Next is the calibration procedure. Press and hold the Mode button until the
Configuration Menu appears. Select ‘Calibrate Sensors’ and press the Enter
5. Confirm by selecting ‘Start Sensor Calibration’ and press the Enter button.
6. The display will momentarily display ‘Cal’ and then it will switch to reading a
percentage of oxygen. If the oxygen content now differs from 20.9% by more
than 0.4%, repeat the calibration.
07-11-2009, 09:52 PM #2
I have had some issues with these things and my XD16 gauge and will be moving to a Motec SDL and Lambda. Right now my XD16 shows 30-40 on my DL-32 and normal readings using the LM-2 so sensors are good.
Anyway, here are some of the things I have seen and dealt with.
- Check the wiring, particularly if you keep getting E8's (heater issues)
- Connect the LM Programmer and verify that you are set up for Gasoline if applicable. (Re) Apply default factory settings
- Test your sensor after CAL in free air - using a lighter to shoot some butane (un-lit) into the sensor, the numbers should go up...
- Check the wiring again
- If you are using a terminator make sure it is secure
- If you should crap out a sensor they can be obtained from the auto store for much less than what IM sells them for Bosch LSU 4.2 (17014 I think)
07-11-2009, 10:07 PM #3
- Join Date
- Sep 2008
- NE Ohio
In the config you have options for different types of fuel. If you are not on gasoline, you will not read accurately. Does your gauge show the heater countdown?
07-11-2009, 10:45 PM #4
It shows the heater countdown & then displays AFR with no errors, so it seems to be connected properly. I just connected to LM Programmer to confirm it was set for gas & noticed a reset calibration button. I clicked it & will try to calibrate again in the morning when it is cool enough to remove the sensor. They did send me a firmware update which I loaded after the initial calibration which may have thrown it off, so I'm hoping the reset feature will allow me to recalibrate.
I just read this in the manual, & I'm hoping I didn't fry it:
It is NOT a good idea to do a sensor warm-up prior to starting the vehicle.permanently damage the sensor.
Depending on the climate and the sensor position in the exhaust, condensation can
form in the exhaust pipes. This condensation could then be blown by the exhaust
stream against the hot sensor when the car is started. The resulting heat shock can
07-12-2009, 12:42 AM #5
No such luck...looks like I'll be going to the auto parts store tomorrow for a new sensor & hoping they have them in stock. I tried recalibrating several times & I keep getting random #'s from 0.0-12.8 in free air.
BTW, the R&D adaptor is a ridiculously designed POS. I wasn't able to remove the sensor without turning the whole adaptor & was forced to turn it out 1/8th turn at a time because there's almost no room to get a wrench on it. The tool they provide makes it impossible to torque in the adaptor without torquing the tool to the adaptor. I had to use the included plug from innovate to try and tighten it down, but it obviously wasn't tight enough. I threw the F'n thing in the trash & will get the one Riva makes on Mon. It has a nut shaped fitting on top like the one Jerry had made & should work much easier.
07-13-2009, 09:06 PM #6
- Join Date
- Sep 2008
- NE Ohio
07-16-2009, 12:06 PM #7
I picked up a replacement O2 sensor & was having the same problem, so I reloaded the new 1.13 firmware update & that fixed it...guess it didn't take the first time. I also got the Riva adaptor & it's well worth the extra $15.
07-16-2009, 12:56 PM #8
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