Any differences to each other ? Only my mapper has told me to get a PF09 as my PF01 doesn't show closed throttle ?

this was the message i got ...

The pf01 has a switch which shows open circuit with closed throttle so that's not going to work unfortunately. The pf09 is the one we need. Ie any other 0 to 5v sensor.


I'm sending him a PF09 so he can carry on ..on Saturday when he's back from Scotland.