Help on error code for VN

[Super_Low 91]

ok i have been looking around on here an other sites looking for the issue, My vn keeps flashing up the check engine light,, iv checked for codes an 23 comes up., now from what i have found it means:

" MAT sensor shows < -30 degrees C for 3 seconds after engine
running 1 minute or coolant > 30C. Probably an open circuit."

My question is what does this mean an how do i fix it,, really confused as to what it could mean,, i have a feeling its something simple an iv just over looked it. any help would be appreciated.

Thanks in advance

[tmerivale]

i honestly have no idea but would it be worth just simply replacing the sensor? i had problems with my car not long ago and it was the oxy sensor, i changed it problem solved. 5 minutes and $60 later. mat sensor may be different i dunno.

[Super_Low 91]

im not even 100% sure were the mat sensor is,, thats the issue or otherwise i would of jus replaced an hoped for the best

[delcowizzid]

in the back of the inlet manifold in the rear drivers side intake runner to the rear cylinder has a 2 wire plug going to it if you pull it out and water comes out thats the wrong one its the coolant one pull the other one

[Super_Low 91]

hmm will sus it out tomoz, to dark out der now

[Super_Low 91]

would i be correct in assuming the mat sensor could be the issue?
because iv just replaced coolant an gave it a good flush, it wasn cooling like it should getting to high

[Super_Low 91]

issue is all sorted thanks the good ol gregory's manual, finally brought one