Fan harness for e-fan operation via ECM

[mrfister77]

OK, so I bought a fan harness for my '02 Silverado to work with the F-body fans and be controlled by the ECM. The harness says to set-up the tune to use the series/parallel option or the HP Tuners needs updated. I have no such option, I thought I was running the "beta". How do I find out what version I'm using, and what I need to update to?

[Montecarlodrag]

Post your tune.

You need to select: EDIT-VIEW-ADVANCED

Then go to System-Fans
It's set to No Fans by default. Change it to 2 fans and set the temperatures you want each fan to turn on and off
Then go to System-A/C and set Recirc Option to Fan #2

However, you need to install the pins to the PCM connectors because your harness doesn't have the wires to activate them. Don't forget they provide ground to the relay.

[mrfister77]

Thank you. 1 more question, the harness has a note that says if you don't run it on series/parallel it will melt the harness. Also I don't have the A/C Recirc Option to Fan #2.
All I have is the A/C disable/enable TPS and RPM. The view is in advanced as well. Thanks for any help.

[mrfister77]

I have the 2.22.3xx version, is that the new one? Also am tuning a 2002 Silverado 5.3. Will any of the file or config info help.

[Montecarlodrag]

I'd need to know which harness you have.

Post your tune to check if I can see the parameters you can't

[mrfister77]

I bought the fan harness from ls1fans.com, tune is attached. Thanks.

[PitchblackC3]

Get the 2.23 Beta and you should be good to go. E-mail support

[mrfister77]

Oh. OK thanks. E-mail sent.

[planethax]

http://www.hptuners.com/forum/showthread.php?t=40806
expect a delay though.

[Montecarlodrag]

I can see the parameters. You need a newer Beta.
Fans are already set to 2 Fans in your tune. A/C is set to Recirc, change it to Fan #2
On/off temps are a little low, don't know if you set them like that but a little higher will be better for fuel economy

[mrfister77]

I'm not using them yet. I got the beta and fan options are the same.?

[Montecarlodrag]

I can see them, post a screenshot of what you see

[mrfister77]

I wish I could, I don't know how. Sorry, I'm trying to figure it out.

[planethax]

press
Ctrl Alt Printscreen
open up mspaint and press Ctrl V

[mrfister77]

Thanks very much!! I've been trying to do that forever.

[planethax]

now click on the AC tab, you will see
AC Recirc
change to
Fan#2

[mrfister77]

What will that do?

[Montecarlodrag]

What will that do?

Enable the PCM's fan #2 output
If set to AC Recirc it won't control a fan so you won't be able to set up your fans in series/parallel, because that setup requires 2 working fan outputs

Set it to Fan #2, then copy the settings from a 99-02 Fbody stock tune

[mrfister77]

OK, that's great. Thank you so much. I was all lost in the sauce, I thought that the series/parallel was an option under fan type. THANK YOU!!

[mrfister77]

Thanks to everyone for all the help I have graciously received from this site over the years. THANKS TO EVERYONE VERY MUCH!!