Computer Flash

Reply Subscribe

Thread Tools

Search this Thread

Mar 4, 2020 | 08:50 PM

93C4LT1

Thread Starter

1st Gear

Joined: Mar 2020

Posts: 1

Likes: 0

Computer Flash

I have a 1993 C4 and was wondering if it's possible to have the computer reflashed to turn the cooling fan on at 200-210. Has anyone done this before?

Mar 4, 2020 | 09:17 PM

Kevova

Le Mans Master

Joined: Sep 2013

Posts: 6,192

Likes: 750

From: near the thumb in the mitten

93 still uses "chip" Hypetech thermomaster prom will turn on fans below 200 requires 160* or 180* thermostat. You will hear the fans running during in town driving.

Mar 5, 2020 | 12:08 PM

c4cruiser

Team Owner

Joined: Dec 1999

Posts: 34,873

Likes: 487

From: Lacey WA RVN 68-69

NCM Sinkhole Donor

As long as the observed coolant temps are around 190-210 degrees, you won't have a problem. The LT1 engine can handle higher coolant temps, even as high as 210-220. With temps in that range, I wouldn't mess with trying to changing where the fans come on. There is a sticky at the top of this section. It would be worth reading.

Mar 5, 2020 | 12:52 PM

vader86

Team Owner

Joined: Sep 2001

Posts: 62,160

Likes: 1,733

From: Athens AL

C7 of the Year - Unmodified Finalist 2021

C4 of Year Finalist (performance mods) 2019

Quote:

Originally Posted by 93C4LT1

I have a 1993 C4 and was wondering if it's possible to have the computer reflashed to turn the cooling fan on at 200-210. Has anyone done this before?

You can have the chip sent off and have that setting changed by just about any tuner.

If you are having overheating issues then there are maintenance things you should do first though.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump