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Trying to figure out how to program fan control on MSPNP2

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Old 07-15-2018, 05:37 PM
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Default Trying to figure out how to program fan control on MSPNP2

So I'm trying to have my condenser fan on when my radiator fan comes on on a 1996 NA. I found that there are separate wires that ground side switch the rad condenser and a/c clutch separately or at least they all have a different pins at the computer.
So the ALED controls the fan temp for the radiator fan but i don't how to setup the control for the condenser fan without hard wiring it? PLZ help...
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Old 07-15-2018, 09:39 PM
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Should just be a matter of finding which output switches it on, and setting that output to switch as a function of CLT. It’s been awhile since I messed with MS2, but the output should be in MSPNP documtation
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Old 07-16-2018, 10:39 AM
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Yeah i read through the documentation and cant find which port just the condenser fan ties to and how to switch it on without running a new wire.
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Old 07-16-2018, 01:33 PM
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Originally Posted by Goldwar
Yeah i read through the documentation and cant find which port just the condenser fan ties to and how to switch it on without running a new wire.

does it come on with A/C?if so you should not need to run any new wires.
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Old 07-16-2018, 03:42 PM
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yes came with factory a/c but i dont know what output mega squirt uses for the condenser fan?
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Old 07-16-2018, 04:40 PM
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MegaSquirtPNP by DIYAutoTune.com

At the bottom. WLED.
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Old 07-16-2018, 09:11 PM
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Thanks I was looking at MSPNP Gen 2 manual not install guide. the WLED still doesn't come on with the other fan with the parameters set the same as ALED and tried it at a lower temp then ALED Still wont come on but is on switched with the a/c clutch So fan control works. Is there a jumper or something that could be wrong?
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Old 07-16-2018, 11:47 PM
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Update: The control side for the ac/ clutch and condenser fan are connected internal or external of the computer . I believe in the computer because the diagram I have has them separated to the computer. So I think if I connect the rad fan control with condenser fan control wires then it will work as long as i put a diode in between the spice and the Computer. When the rad fan activates it activate the condenser fan relay without turning on the a/c compressor clutch and added bonus when the a/c is activated both fans will run as well because of the the diode direction. What do you guys think?
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Old 07-19-2018, 09:56 PM
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Pulse your I/O outputs in Output test mode to figure out what triggers your condenser fan. Then, set a condition for the condenser fan to turn on in programmable outputs. Ideally, at a higher temp than your rad fan, so your electrical system doesn't get overloaded at once.
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