Another Yaris

[Legend-ary]

hello again.. well what can i say.. after parting with my first Yaris which had done 145,000 miles I have bought another one a 2001 Yaris 1.0 Colour Collection with just 45,000 miles.. but is sick as a puppy :( that is the reason it was cheap..

1. bad idle

The car simply cannot hold revs properly.. when i bought the car, it had a dead Battery and owner told me that it just can't hold revs on idle but on high revs it works fine.. it was giving a P0505 error - Idle control valve.. the owner had already replaced crankshaft sensor and camshaft position sensor but it didn't fix. I bought a used throttle body with ICV attached and replaced it . The car refused to start but it did when I took the radiator cap off.. the car was low on coolant and I think it was air locked.. I flushed the radiator and put new pink coolant in and thankfully the car now starts right on key but idles like a piece of crap..cold or warm, revs stay around 900-1300 and at times car feels its about to die but recovers.. do you think there is still some air in cooling system?

I bought a bluetooth obd2 scanner and paired it with torque app.. took some readings off and mapped them.. can anyone see anything wrong with this?

2. heater fan working but no warm air

the fan and everything works but it blows cold air. the car has no ac so its just outside air but the pipes leading to the heater core are both warm so I cannot understand why im not getting warm air? I looked at the fuse box and this is whats there..can anyone running a french 1.0 confirm the fuses that should be present?

im at a loss and have run out of ideas.. pending codes this morning showed misfire 1,2,3,4...