sync loss #31 ms3x 2001 w/vvt
 

as stated i have an 01 1.8 w/vvt running all oem sensors except ait which is a gm sensor from diy. i just got my ms3x v3.0 all built and wired in and got it idling well my issue is i get a constant sync loss at 4200-4400rpm and will not rev past i have adjusted the vr pots and it does not do anything i did some research and found the sync loss codes and how to capture them so i did a datalog and got sync loss #31 (31 Miata 99-00 - 2 cams not seen) now i have looked and not found a definate answer to fix this. any help is greatly appreciated.

this post mirrored from msextra forums link to post with datalog attached
http://msextra.com/forums/viewtopic.php?f=131&t=40608

Kris.

How far away is your crank sensor from the trigger wheel?

did not adjust from oem ecu, its just far enough not to touch and have tried different positions with no change.

Kris.

fixed
 

im a total ms noob spent all day on and off the computer researching... (should have been working) and stupid me realized i did not touch the cam in pots on the 3x card so i gave r11 one turn cw and my sync loss jumped to 6000rpm another turn and it reved to 7500rpm no sync loss with repeated results!
so on to road tunning.

Kris.