OBC temp shows -22 degrees

[UDM Motorsport]

hi gruppe
since i bought the car - 87 is, everytime i start the car the OBC defaults to the temp setting and shows - 22 degrees.
how can i fix this? or make it default to the time?

thanks
franklin

[Court M3]

mine does the same might be normal as the one in the M3 did the same. although I do not have a temp sensor on the 323i

[jflower]

i believe this is because the connection to your outside air temp sensor (in the driver's brake duct) isn't solid. check the connection/wires and see if that fixes it. mine does the same thing.

[BS87]

SO does mine, except when its about 80 degrees out, it reads 295 :shock:

[EtaSport]

Plug your temp sensor back in then. If it reads -22 its not hooked up, or there is a bad connection. you'll probably go looking for it and it wont even be there or the connection has been severed. Not sure where they are on the older e30s. I know on the es/is spoilers they are in the little hole on the driver's side, and the newer e30s they are in the brake duct on the drivers side.

[Court M3]

Yeah maybe I need to get one. :)

[fporro]

can be one of the 2 wires is grounded.
remove sensor and tested with an ohm meter, touch tip and then a cold surface, readings should go uo as well as down.

check blue and brown wire.

22 usually means disconected sensor or bad unit, high temp ? i don't know.

[Jand3rson]

OBC's are retarded and for the most part, useless. I hope the car I get has a deluxe OBC, I could use the $50-90 the kit goes for on ebay for more mods.

- Clock? I wear a watch, and the time is on most CD players.

- Temperature? That's what bank signs are for, and they are usually more accurate.

- Trip counter? Pointless.

- Miles remaining on fuel? I never let my car get much below a quarter tank, and I calculate my own gas/distance ratios before I go on any long trips.

[M-technik-3]

Better be careful there Josh you will let the cat out of the bag.

[BeirBrennerE30]

im not sure where the sensor is on other cars but if it is exposed like on the '87is and '86 es in the front airdam then the sensor takes quite a beating from sand and rocks at the such...

my temp started reading -230 degrees one day so i checked out the sensor and it looked like it had been sandblasted... i replaced it and its been fine ever since...

[e30evolution]

temp sensor is not plugged in... or not working