Hey my cel came on today after I put a new clutch in and new y pipe and cat converter on. I got a 0512 which is defined, but I also noted 3 other codes:
1401
1405
1406

These codes I cannot find in the Haynes manual...Are these even considered valid codes? I checked the cel twice to make sure, and the same codes popped back up.

 

go reread the how to check ecm codes sticky, i think you may have them backwards.

looking through the fsm i didn't see any that started with 14.
but 0114 is fuel sys rich - bank 1
0514 is egr related

there are only 4 codes that have 14 in them and none are the first set of numbers

 

1401 is also an EGR temp code as far as the other 1405-1406 it isn't listed in my pdf off of Nissan so i couldn't tell ya.

 

Yup. I know how to read the codes, Count the slow, then count the fast and put them together. That's what I'm saying, I have 14 SLOW pulses, each followed by 1, 5, and 6 FAST pulses.
This sucks.

 

thats P1401, you would get that if you were using a code reader, not using the ecu screw method.

 

ya, i just have the 0512 now thanks u guys.