a/c conversion questions

[pnhigg]

Alright, I need some help fellas.

I have a 5.3 in a 92 fullsize.

I have added a single electric fan.
I have it connected to what I understand to be the high speed fan signal (red connector #33)
Also from what I can tell the fan should come on at 200 and off at 195.

I also had the a/c wired to kick the fan on when the compressor was engaged, but I am getting nothing.

Anybody have any ideas.


I have a 75amp relay with 12 volts entering pole 30
87 to the fan
86 to a ignition on 12 volt source
85 pin 33 red connector on the pcm.

Any ideas why this isn't working.

[RedHeartbeat]

Did you have your tuner turn on the fan control in your PCM?

[pnhigg]

I assume (I know that is a rediculous answer)
Allen tuned it, and the the fans are set to come on at 200 and off at 195.
In the fans section the pull down has aux fan selected.
Do I need to change that to 2 fans and only use the high speed side?

Also if I connect 12v to the a/c request I get no change in idle although the values are to speed the idle up with the a/c is signaled.
It is green/white wire #17 red connector.

Thank you for the help.

[pnhigg]

OK, I changed the fans option to 2 fans and now I am getting a on off signal from the pcm.
The relay, which I checked with a rocker switch to assure it worked, it simply opening and closing contacts every 1/2 second or so, but will not keep the relay triggered to keep the fan on.
I thought maybe I was at the low end threshold for getting the fan to come on, but I let the ect rise to about 210 and the pcm signal kept clicking on/off every 1/2 second.

What could that be?


Thanks again