08-19-2012, 07:08 PM
Join Date: Mar 2012
Total Cats: 0
MSPNP 99-00 o2 wiring
I have one of the new MSPNP9900 for my 99 miata. I installed it and got it running so that was good. I then installed the LC-1 along with a VEI gauge. I have programmed both LC-1 outputs with the same 7.35-22.39 settings. My VEI gauge is working great. The MS either does not see the wbo2 voltage or something. I changed the profile info to wideband, I reset the AFR table to LC-1 and I changed the EGO to wideband as well.
Do I need to wire the wideband to one of the alternative o2 inputs? If so, which pin is it because I cannot find any info on the pinouts for the 15 pin connector?
Oh, I did ground to the ecu ground and I am getting what looks to be the proper voltage (2.3-2.5v) going to the ecu via the O2 sensor connector and original harness.
Edit: I found the MSPNP general manual and it shows pin 14 to be the right one but I want to make sure that it applies to this new model.
Last edited by fmcokc; 08-20-2012 at 11:33 AM.
Reason: found new info