LC1 Voltage Offset Data / Correction

[Nick 2K2 SS]

Hey Guys,

Well I've done some reading and research on voltage offsets for the LC1 and I decided to do some testing myself. I'm looking for some help/Advise on how I should try and correct for my voltage offset.

First I recorded my voltage information by setting the LC1 to various “Flat Line” Voltages and then configured my EIO to show me the voltage reading by setting it to Volts / 1 + 0. Here is the data I got.

LC1 Voltage Output Set to 1.000 V
EIO Readings as Follows
.98145

LC1 Voltage Output Set to 2.000 V
EIO Readings as Follows
1.97754

LC1 Voltage Output Set to 3.000 V
EIO Readings As follows
2.97363

LC1 Voltage Output Set to 4.000 V
EIO Readings As Follows
3.93555

LC1 Voltage Output Set to 4.500 V
EIO Readings As Follows
4.35059

LC1 Voltage Output Set to 4.750 V
EIO Readings As Follows
4.52148

LC1 Voltage Output Set to 5.000 V
EIO Readings As Follows
4.65820

I’m trying to figure out how to correct for the voltage offset and it was doing pretty good until I was trying to read voltages greater then 4. According to the data, the higher the output voltage the more offset my voltage is. Should I try to use the lower 3 volt range and custom program my EIO so that the “useable voltage” and corresponding AFR range only uses the 0-3 volt range. I’m just not quite sure how I should adjust for my voltage offset. Any help or advise would be appreciated.

Thanks

Nick

[Nick 2K2 SS]

Does anyone have any suggestions or advise??

[PurplePiss]

Take the heater ground for the sensor (blue I think) and ground it back to the head on the passenger side front. Then redo what you did above.