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Radiator fans kick on at 140F. That seems odd...


EfiniX
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Galant VR-4 org Post #: 1213654 posted 07/31/15 08:11 PM     Remind Me!  Send Private Message   Edit Post      
when I got my car originally, the fans were just on all the time. I got this sorted out when I put a new motor in, but ever since then, the fans kick on when the ECT hits 140 (what I see in link). I've got to assume that the sensor is actually turning the fans on at a lower temp since it's located at the bottom of the radiator.

So here's the thing: WTF? I don't see any resistors anywhere, and the temp sensor is stock Denso. I mean it might be f'ed? What else could cause this? It's causing the car to run a bit cooler than I would like, which is manageable with the coolant offset, but it also takes quite a bit of time to warm up.

I figure if the temp sensor fails, it just fails. Weird that the fans are coming on at such a specific temp...



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EMX5636
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Galant VR-4 org Post #: 1213655 posted 07/31/15 08:24 PM     Remind Me!  Send Private Message   Edit Post      
WOP in 3, 2, 1...



91 #108/2000- link
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EMX5636
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Galant VR-4 org Post #: 1213656 posted 07/31/15 08:26 PM     Remind Me!  Send Private Message   Edit Post      
But I would guess the sensor could fail and close the circuit at any temperature, I would try that first unless you know it's been replaced. Or you can do what Mark will suggest, and control the fans with DSMLink.



91 #108/2000- link
97 Kawi ZX7R Street / 03 ZX6R Track
03 Kawi KLX400R Supermoto
05 CTS-V
09 Hummer H3T

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EfiniX
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Galant VR-4 org Post #: 1213661 posted 07/31/15 09:08 PM     Remind Me!  Send Private Message   Edit Post      
I'd be happy to use link, but I've searched far and wide for the process with little in the way of instructions. I know you use the FPR or EGR inputs, but those tabs in link don't have a mention of coolant temp. Could be a there's a hacky way to do it where you calculate the voltage link expects to see coming from the input to close the ground circuit and switch your relay on, but again, not sure what that is.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

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EMX5636
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Galant VR-4 org Post #: 1213662 posted 07/31/15 09:34 PM     Remind Me!  Send Private Message   Edit Post      
You use the outputs you listed, but you can tell it exactly when to turn on or off. I am controlling my meth injection the same way. You select on and off temp, wire it to a relay or to the factory fan temp switch wiring, and should be golden. If you go on the Link Wiki for controlling outputs, the generic info you need is there.

I'm sure Mark has some more specific info.



91 #108/2000- link
97 Kawi ZX7R Street / 03 ZX6R Track
03 Kawi KLX400R Supermoto
05 CTS-V
09 Hummer H3T

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EfiniX
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Galant VR-4 org Post #: 1213663 posted 07/31/15 10:21 PM     Remind Me!  Send Private Message   Edit Post      
Can you share a screen shot? I don't see a field for temp.



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2006 Suzuki SV-650 (for sale)
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donniekak
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Galant VR-4 org Post #: 1213664 posted 07/31/15 10:52 PM     Remind Me!  Send Private Message   Edit Post      
Have you updated to the newest firmware, and laptop application? It was added to v3 after it had been out a while.

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EfiniX
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Galant VR-4 org Post #: 1213667 posted 07/31/15 11:26 PM     Remind Me!  Send Private Message   Edit Post      
I checked the versioning, but if the laptop software and ECU software don't follow the same release tree, that could be it.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

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Galant VR-4 org Post #: 1213671 posted 08/01/15 01:56 AM     Remind Me!  Send Private Message   Edit Post      
Quoting EMX5636:

WOP in 3, 2, 1...




What'd I miss?



-Mark

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KiNgMaRtY
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Galant VR-4 org Post #: 1213681 posted 08/01/15 08:48 AM     Remind Me!  Send Private Message   Edit Post      




92 GVR4 #802 link
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KiNgMaRtY
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Galant VR-4 org Post #: 1213682 posted 08/01/15 08:51 AM     Remind Me!  Send Private Message   Edit Post      
Thanks for the tip Mark. I was unaware it was available for the 1g/vr4 ecu.



92 GVR4 #802 link
17 CTS-V,06 Evo IX MR, 98 Montero
94 MX5 M-Edition - On Xidas, LS1 Swap in progress
SOLD: 92 GVR4 #611

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prove_it
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Galant VR-4 org Post #: 1213684 posted 08/01/15 09:23 AM     Remind Me!  Send Private Message   Edit Post      
Quoting turbowop:

Quoting EMX5636:

WOP in 3, 2, 1...




What'd I miss?




Don't worry, we filled in for you...



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EfiniX
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Galant VR-4 org Post #: 1213705 posted 08/01/15 07:25 PM     Remind Me!  Send Private Message   Edit Post      
Quoting KiNgMaRtY:







I must be out of date. Those are not the fields I see.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (174.25.81.185) | Report this post to a Moderator

KiNgMaRtY
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Galant VR-4 org Post #: 1213772 posted 08/02/15 04:51 PM     Remind Me!  Send Private Message   Edit Post   
Yes, update it. I had v3 and updated in February or so but hadn't played with it in a while and sure enough, the options where there



92 GVR4 #802 link
17 CTS-V,06 Evo IX MR, 98 Montero
94 MX5 M-Edition - On Xidas, LS1 Swap in progress
SOLD: 92 GVR4 #611

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