Willoverkill Posted December 3, 2011 Report Share Posted December 3, 2011 Hey everyone. I just got my 2005 fans in. I also just read the 10 pages in the how to section and still dont have a clue whats going on. Mainly because it doesnt make CLEAR SENSE... I would like a fan 1 and fan 2. Have the one come on and the other come on at a higher temp OR with AC. I also need them to run when the AC is requested. I would like to know what pins of the PCM to use for a fan 1, fan 2, and to get the AC request working. Some help on this would be great so I can start making my harness to run them. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted December 3, 2011 Report Share Posted December 3, 2011 (edited) Its pins 33, and 42 on the PCM, Getting a the tune to turn on the fans will do everything you are asking for. EDIT: In the PCM, when it commands :: fan 1, it does not control one fan, but both fans on low power. Fan 2, will control only the passenger side fan on high, and when the PCM commands both fan 1 and fan 2, both fans will go on, on HIGH mode. The A/C system controls fan 2 in conjunction to ECT... Edited December 3, 2011 by chpspecial (see edit history) Quote Link to comment Share on other sites More sharing options...
Willoverkill Posted December 3, 2011 Author Report Share Posted December 3, 2011 I guess its all a matter of how you wire up the relays as well. I managed to find some diagrams online after some looking around and they have theirs set up to run only one PCM pin (42) and that will turn on both fans on low speed. Then wire in the AC wire and it will turn both fans on high. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted December 4, 2011 Report Share Posted December 4, 2011 That's the hptunets way since they couldn't control both pins in the old days. Now they have full support like efilive. sent from my thunderbolt Quote Link to comment Share on other sites More sharing options...
NipRing Posted August 26, 2015 Report Share Posted August 26, 2015 What is the trick to getting them to come on right when the A/C is turned on? When i start up the truck, no A/C until i start moving Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted August 26, 2015 Report Share Posted August 26, 2015 What is the trick to getting them to come on right when the A/C is turned on? When i start up the truck, no A/C until i start moving It is all in the tuning. HPT has full support now where you can command the fans to come on at certain high side A/C pressures. Quote Link to comment Share on other sites More sharing options...
NipRing Posted August 26, 2015 Report Share Posted August 26, 2015 I have access to my tune through a friend who has HPTuners but neither of us know what to set the pressure points at. Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted August 26, 2015 Report Share Posted August 26, 2015 Here is what we suggested when we made the HPM fan kits Quote Link to comment Share on other sites More sharing options...
Downeast Johnny Posted August 27, 2015 Report Share Posted August 27, 2015 Here is what we suggested when we made the HPM fan kits Thanks for your tables. I have one of you guys e-fan kits that I got second hand from a member. Zippy probably knows these settings but it is great to have them anyway. Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted August 28, 2015 Report Share Posted August 28, 2015 Thanks for your tables. I have one of you guys e-fan kits that I got second hand from a member. Zippy probably knows these settings but it is great to have them anyway. If you want the entire instructions PM me your email address. Quote Link to comment Share on other sites More sharing options...
Downeast Johnny Posted August 28, 2015 Report Share Posted August 28, 2015 If you want the entire instructions PM me your email address. Thank you Dan. I'll send a PM. Quote Link to comment Share on other sites More sharing options...
NipRing Posted August 29, 2015 Report Share Posted August 29, 2015 Retired99, at the top of that page where it says Thermostat on top of each column, which is which? 180 on the left 160 on the right? Or vice versa! Thanks Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted September 23, 2015 Report Share Posted September 23, 2015 Retired99, at the top of that page where it says Thermostat on top of each column, which is which? 180 on the left 160 on the right? Or vice versa! Thanks The right side is for the lower temp stat.... thats a given by the requested temps. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.