General Miata Chat A place to talk about anything Miata

Changing temp in which the fans come on?

Thread Tools
 
Search this Thread
 
Old 01-30-2008, 04:07 PM
  #1  
Elite Member
Thread Starter
iTrader: (30)
 
levnubhin's Avatar
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,329
Total Cats: 12
Default Changing temp in which the fans come on?

Can it be done with stock ecu? If so how?
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline  
Old 01-30-2008, 04:11 PM
  #2  
Boost Czar
iTrader: (62)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,493
Total Cats: 4,080
Default

the fans come on when the thermoswitch sees 207°. Then it simply trips and grounds the circuit.

Unless you replace the thermoswitch to something with a different switching value, i doubt you can do it.


however, it's super easy to do with MS
Braineack is offline  
Old 01-30-2008, 04:51 PM
  #3  
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago. (The less-murder part.)
Posts: 33,020
Total Cats: 6,588
Default

To clarify, in the 1.6 cars the ECU does not control the fans insofar as responding to CLT temperature.

The thermoswitch that Brain refers to is the one mounted on the top of the thermostat housing. When it gets hot it closes a path to ground which energizes the primary fan relay.

The only thing that the stock 1.6 ECU does with regard to the fans is to turn them on when the A/C is active, and that is not a temperature-dependent activity.
Joe Perez is offline  
Old 01-30-2008, 04:55 PM
  #4  
Elite Member
iTrader: (12)
 
Doppelgänger's Avatar
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,850
Total Cats: 71
Default

wire your fans in parallel and add your own ignition activated switch
Doppelgänger is offline  
Old 01-30-2008, 05:00 PM
  #5  
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
Default

http://cgi.ebay.com/ebaymotors/DAKOT...em370017535053
__________________
Chief of Floor Sweeping, DIYAutoTune.com & AMP EFI
Crew Chief, Car Owner & Least Valuable Driver, HongNorrthRacing

91 Turbo | 10AE Turbo | 01 Track Rat | #323 Mazda Champcar

Originally Posted by concealer404
Buy an MSPNP Pro, you'll feel better.
Ben is offline  
Old 01-30-2008, 08:05 PM
  #6  
I'm Miserable!
iTrader: (5)
 
bryantaylor's Avatar
 
Join Date: Dec 2006
Location: jacksonville, fl
Posts: 1,711
Total Cats: -1
Default

damn, thats half a megasquirt
bryantaylor is offline  
Old 01-31-2008, 12:52 AM
  #7  
Junior Member
iTrader: (9)
 
Pseudosport's Avatar
 
Join Date: Apr 2007
Location: Hanover, MA
Posts: 237
Total Cats: 0
Default

AutoZone sells an adjustable fan control kit for about $25. Torqflo or CompressorWorks part # 733652. I used it on my old jeep and it works well. My only complaint is that the kit comes with just one color wire. It makes wiring up the relay, fan, and switch tricky if every wire is blue.
Pseudosport is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
tazswing
Race Prep
20
10-03-2015 11:04 AM
shooterschmidty
Engine Performance
8
09-30-2015 10:28 PM
thumpetto007
Race Prep
4
09-27-2015 05:16 PM



Quick Reply: Changing temp in which the fans come on?



All times are GMT -4. The time now is 07:10 AM.