Operating temp of coolant.
#5
Rotary Enthusiast
Thread Starter
iTrader: (1)
Join Date: Aug 2005
Location: Canada
Posts: 1,315
Likes: 0
Received 0 Likes
on
0 Posts
The one on the filler neck of an S4, just on top of the water pump. What is it used for that particular one....
And when you do a S4 J-spec swap with USDM Harness...where does it plug in? Any of you guys have any pics?
Oh, and thanks Classic, you're the ****.
And when you do a S4 J-spec swap with USDM Harness...where does it plug in? Any of you guys have any pics?
Oh, and thanks Classic, you're the ****.
#6
(blank)
iTrader: (1)
"The one on the filler neck of an S4, just on top of the water pump. What is it used for that particular one...."
That's the one for the ECU.
BTW, the tiny one (one-wire) below the oil filter is the coolant temp sender for the coolant temp gauge, the fat one beside it is the oil pressure sender (one-wire, weird clip)
That's the one for the ECU.
BTW, the tiny one (one-wire) below the oil filter is the coolant temp sender for the coolant temp gauge, the fat one beside it is the oil pressure sender (one-wire, weird clip)
#7
Crash Auto?Fix Auto.
iTrader: (3)
Actually the one on top of the water pump is for something else...thats the one I'm not 100% on. The one on the back of the water pump housing (green plug) is for the ECU. The little guy on top I'm not sure about.
It may have something to do with the gauge, might be somethign to do with cold start. Not sure. Sorry, oh and thanks
It may have something to do with the gauge, might be somethign to do with cold start. Not sure. Sorry, oh and thanks
Trending Topics
#8
(blank)
iTrader: (1)
I'm silly, didn't read right there....the one on top of the thermostat controls the electric fan, usually on automatics I believe... a thermo switch of some sort...
Just remembered...the cold start assist uses the oil temp sensor (one-wire) mounted on the side of the oil pan
Just remembered...the cold start assist uses the oil temp sensor (one-wire) mounted on the side of the oil pan
Last edited by Aaron Cake; 06-06-07 at 10:57 AM. Reason: Merge two posts
#10
Crash Auto?Fix Auto.
iTrader: (3)
Originally Posted by My5Ababy
You sure you want to go with that answer?
I'd belive thermo switch...I wasn't sure which was which when I did my Haltech install, so I hooked both that one, and the one beside the oil pressure sender back up. My gauge still works so.... A simple multi meter test will tell if its a switch though, and it probably is.
#11
(blank)
iTrader: (1)
O.K. Wrong wording...I should have said "sub-zero assist"
The Little bottle mounted on the passenger side (left hand drive) firewall that you fill with 90% antifreeze and 10% water uses the oil thermo sensor on the oil pan (one wire sensor). When the temps. are below around -4F to -10F (-20C to -12C) as per the FSM, this mixture is squirted into the intake manifold. This is in non-california cars only.
I'm still sticking to what I said in post #8, though!
Also, I know the sensor mounted on top of the thermostat cover is for the fan because on a friends car the fan kicked on when it was unplugged. The sensor to the left of the oil pressure sender is the sender for the coolant temp gauge.
Let me know if this makes sense or whether I need another coffee.
The Little bottle mounted on the passenger side (left hand drive) firewall that you fill with 90% antifreeze and 10% water uses the oil thermo sensor on the oil pan (one wire sensor). When the temps. are below around -4F to -10F (-20C to -12C) as per the FSM, this mixture is squirted into the intake manifold. This is in non-california cars only.
I'm still sticking to what I said in post #8, though!
Also, I know the sensor mounted on top of the thermostat cover is for the fan because on a friends car the fan kicked on when it was unplugged. The sensor to the left of the oil pressure sender is the sender for the coolant temp gauge.
Let me know if this makes sense or whether I need another coffee.
#15
(blank)
iTrader: (1)
Two sensors on the bottom of the oil pan (on non-california cars?)...the one-wire is oil temp for sub-zero system, the two-wire is oil level sensor.
the one at the bottom of the rad is a coolant switch, closed above around 15 degrees celsius. It affects how the secondary air injection control system sends air from the air pump. See pages 4A-45 and 46 in the FSM (1988).
the one at the bottom of the rad is a coolant switch, closed above around 15 degrees celsius. It affects how the secondary air injection control system sends air from the air pump. See pages 4A-45 and 46 in the FSM (1988).
#16
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
Originally Posted by F.C.3S
what is the thermo sensor used for usually?
The one on the filler neck of an S4, just on top of the water pump. What is it used for that particular one....
And when you do a S4 J-spec swap with USDM Harness...where does it plug in?
Originally Posted by My5ABaby
Oil temp sensor? You sure you want to go with that answer?
It amazes me how long it takes to get the right info into these threads. Lot's of guesses, mostly wrong, despite how easy all this is to find in the FSM. Surely if you can read a forum you can read the FSM...
#20
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
Originally Posted by classicauto
Where's the oil temperature sensor in an FC?