:::RHMT::: Real Home Made Turbo

General Category => Engine Management => Topic started by: HiProfile on June 18, 2010, 11:35:23 PM

Title: Bypass bad thermo switch?
Post by: HiProfile on June 18, 2010, 11:35:23 PM
Has anyone tried the EMS-based method to activate the relay? As in have hondata/neptune/ectune activate the relay at a lower temp than the thermo switch? The helms wire diagram shows the ecu connecting to the circuit between the relay and thermo switch, so I'm not 100% sure if it's an input or if it bypasses (electricly grounds) the thermo switch.

I ask because my b16 beater appears to have a bad thermo switch. Fuse is fine, relay is fine, fan jumps fine, and when A/C is activated, rad fan is off unless I jump the thermo switch. I just thought it was a severly crusted & falling apart radiator, stupid me. Oddly enough in 90* weather, the stocker w/full head manifold shield only overheats (>215F) if the car sits at a light for 2-3 minutes. Right now it has overheat protection and limits to 3k rpm after 215F.
Title: Re: Bypass bad thermo switch?
Post by: runsfromdacops on June 19, 2010, 01:20:14 AM
hondata will bypass it. i have mine at 180
Title: Re: Bypass bad thermo switch?
Post by: jagojon3 on June 19, 2010, 01:35:32 AM
How much is a thermo switch?
Title: Re: Bypass bad thermo switch?
Post by: runsfromdacops on June 19, 2010, 02:31:02 AM
on my daily i just jumped the wires so the fan is on all the time :yes:
Title: Re: Bypass bad thermo switch?
Post by: leed on June 19, 2010, 03:56:49 AM
Crome has a plugin for fan control. Verified working.
Title: Re: Bypass bad thermo switch?
Post by: Joseph Davis on June 19, 2010, 08:38:03 AM
Easy
Title: Re: Bypass bad thermo switch?
Post by: HiProfile on June 19, 2010, 09:45:16 AM
How much is a thermo switch?

~$35 new. I have a dozen, but that's leaky coolant & stock rats nest of wiring & tubes to change. This is just a few keystrokes into a program.



on my daily i just jumped the wires so the fan is on all the time :yes:

You never got the memo about fuel efficiency, max power, and oil life pertaining to 180F coolant, did you? Or you just slapped an abortion of an ebay slimfan on there, right?
Title: Re: Bypass bad thermo switch?
Post by: Joseph Davis on June 19, 2010, 09:52:02 AM
Fans that run all the time are my biggest pet peeve.  It's only slightly less retarded than the fan on a switch mod. 
Title: Re: Bypass bad thermo switch?
Post by: runsfromdacops on June 19, 2010, 01:49:58 PM
How much is a thermo switch?
~$35 new. I have a dozen, but that's leaky coolant & stock rats nest of wiring & tubes to change. This is just a few keystrokes into a program.

on my daily i just jumped the wires so the fan is on all the time :yes:

You never got the memo about fuel efficiency, max power, and oil life pertaining to 180F coolant, did you? Or you just slapped an abortion of an ebay slimfan on there, right?
thats what a themostat is for
Title: Re: Bypass bad thermo switch?
Post by: HiProfile on June 20, 2010, 12:05:44 AM
Tell that to all the tools with the full-width fluidyne rads around here. They have to cover half their rad with a plate or it will never get above 150F. It's even worse if they have the muuuugen cooler t-stat.

A thermostat still bypasses enough to take almost-ambient water into the water jacket area and cool it down too much.




Anyways this shit worked like a charm. Fuck replacing parts when you can use a PC to bypass it. I feel like the Lawnmower Man. And with a macro + keeylay's pc-to-text msg sites, I very well could become him. :mexi:
Title: Re: Bypass bad thermo switch?
Post by: crttaz on June 20, 2010, 03:55:39 AM
Fans that run all the time are my biggest pet peeve.  It's only slightly less retarded than the fan on a switch mod. 

unless you are using it for cool down purposes, in parallel with OEM switch.

Also great on a 90F+ day, both fans on, AC kicking ass, coolant sitting at 175-180.

Watching others sweat their balls off, priceless :)
Title: Re: Bypass bad thermo switch?
Post by: rudebwoy on June 20, 2010, 04:10:40 AM
Fans that run all the time are my biggest pet peeve.  It's only slightly less retarded than the fan on a switch mod. 
the fan on the switch method has been my friend for years, not problem temp stays right where it supposed to be.
Title: Re: Bypass bad thermo switch?
Post by: Joseph Davis on June 20, 2010, 09:26:11 AM
Fans that run all the time are my biggest pet peeve.  It's only slightly less retarded than the fan on a switch mod. 
the fan on the switch method has been my friend for years, not problem temp stays right where it supposed to be.

Only as long as you pay attention to it.  One mess up, sir.  Five minutes of inattention.
Title: Re: Bypass bad thermo switch?
Post by: crttaz on June 20, 2010, 03:34:23 PM
Fans that run all the time are my biggest pet peeve.  It's only slightly less retarded than the fan on a switch mod. 
the fan on the switch method has been my friend for years, not problem temp stays right where it supposed to be.

Only as long as you pay attention to it.  One mess up, sir.  Five minutes of inattention.

Which is why I prefer a working OEM switch and a switch.....in case of old man brain farts.
Title: Re: Bypass bad thermo switch?
Post by: Joseph Davis on June 20, 2010, 08:42:48 PM
Fans that run all the time are my biggest pet peeve.  It's only slightly less retarded than the fan on a switch mod. 
the fan on the switch method has been my friend for years, not problem temp stays right where it supposed to be.

Only as long as you pay attention to it.  One mess up, sir.  Five minutes of inattention.

Which is why I prefer a working OEM switch and a switch.....in case of old man brain farts.

Especially when it works flawlessly, I never understood why someone would go out of their way to wire in a manual switch.
Title: Re: Bypass bad thermo switch?
Post by: 92CXyD on August 16, 2010, 08:41:14 AM
Ground A12 at the ECU,the fan will come on. Crome has a script for it..

In Crome Pro?

Who are you?

Where is your noob post?

Title: Re: Bypass bad thermo switch?
Post by: Joseph Davis on August 16, 2010, 09:44:29 AM
Who is who, Russ?  I don't see the ignorant n00b post made to an ancient thread restating shit that's already been covered that you have quoted.

What's this all aboot?
Title: Re: Bypass bad thermo switch?
Post by: 92CXyD on August 16, 2010, 09:49:27 AM
Who is who, Russ?  I don't see the ignorant n00b post made to an ancient thread restating shit that's already been covered that you have quoted.

What's this all aboot?

Somebody already delete this?

This post came upas part of my Show unread posts since last visit.