Darien

Not sure what these 2 connectors are?

http://forums.rennlist.com/upload/connectors.jpg

atari_st

The one on the right is the TEMP II sensor. The other is another temp sensor....but cant remember the proper name.

Darien

Any idea what they are for?

mark kibort

on on the left is the water temp sensor, the one on the right is the tempII sensor.

mk

Darien

Thanks Mark,

Anyone know how they work and if they're known for going bad?

Tony

They rarely go bad. I think there is a section in the manuals that will tell you the ohm across the terminals at various temps.

TAREK

the one on the left is supposed to send signal to the dash gauge

N.Masco

Pardon my ignorance, but what is the "temp II"?

Darien

Do they send signals to the computer? I'm curious about the "temp II" also...

John Speake

Temp 2 is a dual sensor, one pin goes to the LH ECU, the other to the EZK ECU. The body of the sensor, is the common ground connection.

The resistances are in the manual, page 24-114 (and other places as well) At ambient temp each side to body should measure in the range 1400 ohms to 3600 ohms.

Darien

Thanks everyone, that's what I was looking for

jpitman2

Resistance goes DOWN with rising temps in these sensors. IIRC as low as 200-300 ohms at full operating temp. If they fail high resistance (typical mode, open circuit), car will start cold, but get progressivley rich as it warms, and not be happy. The failed sensor can be bypassed in this mode when warm with ~300 OHM resistor.
jp 83 Euro S AT 49k

Darien

I wonder if that's part of the reason for my strong fuel smell at idle??

jpitman2

That sounds more like the infamous Y pipe feeding the charcoal cannister has failed.....
jp 83 Euro S AT 49k

bwebb77

Yeah Darien, sounds like the Y pipe to me also. It's also easy to elminate first on the check list.