tuning out fans

[cajundragger]

I have a spal fan controller for my ls1 swapped truck so I dont need the pcm to turn on the fans. Im looking to cut all the power wires for the fans out the engine harness but I want to make sure I can do this without throwing a code or freaking out the computer. If anyone can lend any insight I'd appreciate it. Thanks.

[Redline Motorsports]

You should be OK as most if those are outputs with no feedback to check. Why don't you just run a relay to turn on the SPAL fans when commanded by the PCM?

Howard

[Lextech]

I agree with Howard. I would let the PCM control the Spal relay. Then the fan on and off temps could be completely tuned with EFILive.

Jeff

[cajundragger]

well thing is the spal unit I have slowly increases fan speed and everything as temp rises, it doesnt just have on/low and on/high.

[Lextech]

Hmmm,

You can go to table G1203 in your tune and set the fan option to NO FANS.
But, There aren't any trouble codes for them---So it shouldn't matter.

PS. Are you on the 47-59 truck forum?

[cajundragger]

Hmmm,

You can go to table G1203 in your tune and set the fan option to NO FANS.
But, There aren't any trouble codes for them---So it shouldn't matter.

PS. Are you on the 47-59 truck forum?

thanks.


yes sir I am.