hi all some help needed please. ecu fault codes, on v6

[blue redtop]

hi ive just brought a v6 and very very surprised how much faster it is than my redtop.any way,i did a paper clip test just to see if it had any logged faults and it has.they are
12 (normal as engine was off)
14 Coolant temperature sensor - voltage low
31 No engine RPM signal, Engine not running, (Crankshaft Sensor - No Signal)

im stuck on how to fix the number 14 and the heaters were only blowing cold air and the temp on dash didnt go over 90 all day.

also (this is a strange one) after it flashed the number 14 code it then did a little pause(not as long as it does when its moving to the next code)and flashed 5 times?.anyone know what it could be.
cheers

[blue redtop]

im surprised that no one knows hpw to fix code 14.

[blue redtop]

thank you for the info.ill change it and post back once its done.
cheers

[RobbieV]

Here's a pic before you post "where is the cts located"

[blue redtop]

Here's a pic before you post "where is the cts located"

thanks for that,i would of changed the wrong sencor.
i thought it was "coolant temp switch" and would of thought it was on the coolant expansion tank.

are they easy to fit and do they cost much.

cheers

[RobbieV]

It's easier to get to it by removing the alternator cooling fan ducting, as for price can't remember but pretty cheap.