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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?
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.
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.
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.
I'd need to know which harness you have.
Post your tune to check if I can see the parameters you can't
I bought the fan harness from ls1fans.com, tune is attached. Thanks.
Get the 2.23 Beta and you should be good to go. E-mail support
Oh. OK thanks. E-mail sent.
http://www.hptuners.com/forum/showthread.php?t=40806
expect a delay though.
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
I'm not using them yet. I got the beta and fan options are the same.?
I can see them, post a screenshot of what you see
I wish I could, I don't know how. Sorry, I'm trying to figure it out.
press
Ctrl Alt Printscreen
open up mspaint and press Ctrl V
Thanks very much!! I've been trying to do that forever.
now click on the AC tab, you will see
AC Recirc
change to
Fan#2
What will that do?
Enable the PCM's fan #2 outputQuote:
Originally Posted by mrfister77
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
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!!
Thanks to everyone for all the help I have graciously received from this site over the years. THANKS TO EVERYONE VERY MUCH!!
Glad to help
This is the dual fan, 2 speed diagram from a F-Body (series/parallel)
So the prob. I'm having with my temp climbing while standing still is the lack of high speed wire? The harness I bought only came with the pin 42. I was just going to ask why my fans were spinning way slower than before the new harness. Should I contact the maker of the harness and ask how to add that high speed wire to the harness?
I'm still playing with the fan table and I still can't get the fans to keep my temps below 190 even. Before the harness to run off the ECM the temp never got above 187 ever. Also the fans were spinning like 2 times faster. I've put my current file a screen shot, If someone could please help I will be very appreciative. Thanks.
Yes .. without a wire from C2 pin 33 (High speed fan) you are running the fans on Low speed.Quote:
Originally Posted by mrfister77
Because the OEM 3 relay fan wiring harness is configured to operate the fans in series (Low) and parallel (High).Quote:
Originally Posted by mrfister77
If you want the fans to run at High speed (parallel) - Yes.Quote:
Originally Posted by mrfister77
Thats because before using the harness with the OEM 3 relay configuration the fans were running at full speed (High) anytime they were activated.Quote:
Originally Posted by mrfister77
Yes they were - see the above comments.Quote:
Originally Posted by mrfister77