Jump to content
SAU Community

Recommended Posts

I got my ac recharged last week and then yesterday I changed out the evap temperature sensor that behind the glove box. Now I get ice cold air conditioning. But sometimes while driving it’ll switch to hot air even though it says the ac is still on. And then go back to cold. Also, the fan would go from full blast to very minimal and then back to full blast again. 
 

attached is a video with it working properly after I put the new sensor In. 
 

 

 

Link to comment
https://www.sau.com.au/forums/topic/480988-varying-temperature-and-fan-speed/
Share on other sites

Just now, GTSBoy said:

No, the actual question is what is actually wrong. Then you can worry about whether you can fix it. Then you worry about how to fix it.

Unfortunately that means going back to the mechanic as I am the newb of the newb with electronics. 

36 minutes ago, trel said:

Have a read of this thread. Runs through diagnostic on climate control. Try that, might show you a fault.

Oddly enough I’ve done this before. Doing it again just now I got different readings. First diagnostic showed two different numbers. Turned key off. Then did diagnostics again and got a different set of numbers. Attached below is the videos. 
 

 

1 hour ago, trel said:

Check those sensors are all plugged in correctly the inside air one is where the little slits are behind the dash cover make sure that's seated correctly too.

The outside one is completely missing. Almost like someone ripped it. 

It most certainty would affect it. All the sensors work together, if you set your temperature to 20 in the cabin and it's 40 outside that needs to work to regulate how much the compressor has to kick on/off, if it has to blend any warmer air or colder dependant on outside temp etc.

Edited by trel

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hows your intake piping? Are you still running stock? Having in the stock AFM position would mean, if the BOV was shut/venting out, it'd create the almost stalling kind of effect right // "the rich pulse behaviour" due to MAF thinking air is flowing ? But this would be better than having the bov in the stock position + MAF on/just before cross over piping right?
    • Essentially, yes. Although I wouldn't put the AFM on the crossover pipe. I'd want to put it into what amounts to the correct size tube, which is more easily done in the intercooler pipework. I bought a mount tube for card stile AFM that replaces the stock AFM - although being a cheap AliExpress knockoff, it had not flange and I had to make and weld my own. But it is the same length and diameter as the stock RB AFM, goes on my airbox, etc etc. I don't have a sick enough rig to warrant anything different, and the swap will take 5 minutes (when I finally get around to it and the injectors & the dyno tune).
    • So to summarise, the best thing to do is to move recirc to between turbo and IC, and maf on the crossover pipe. Meaning I'd need a recirc flange, drill a hole in the piping on turbo outlet area. And drill hole on crossover to fit/weld maf sensor? Either that or put the MAF on the turbo inlet right?  Is an aftermarket recirc/blowoff valve recommended? Do currently have family in Japan so could probably bring something back with maybe a cheeky lil SuperAutobacs run?
    • Yep, so far most have said that it looks like corrosion on the wall from piston not moving. Which then has probably damaged the oil rings and caused those vertical marks. The longest the engine was still after the rebuild, was the winter of 2018 - 2019, plus the boat trip to Japan. When I shipped the car, it had normal gas in the tank but before that winter pause, it had E85 in tank.  In any case, even if either one of those was the cause, it happened close to 6 years ago and the car has been driven something like 30 000kms after the fact. Again, apart from the plugs and the dip stick, there is nothing in the way the car runs that would indicate what has been going on in the engine. I am going to consult a shop and ask their opinion, what would be the best approach. I do have some access to a garage I could use to diagnose further myself, but time is very restrictive. Might end up buying another engine that could be used while this one is being remedied. Without pulling the head, it will be impossible to find out if it needs another bore, but here's to hoping a hone would suffice.  Goddamnit, I would really have preferred this not happening.  
    • Boot is going to be replaced eventually. I just wire brushed what I could and rust converted. Then painted in rust kill primer. the spoiler also got repainted and plugs replaced on the ends. The under side of the bonnet is going to be black also, currently white. But red on the top side, same colour code as the silo to begin.
×
×
  • Create New...