F45 sims

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Aug 16, 2008 | 05:54 PM

GS023

Thread Starter

Drifting

Joined: Oct 2003

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From: Lorena Texas

F45 sims

I am working on a GS that has F45. We are wanting to put a non adjustable set of shocks on the car for autocrossing. If I disconnect the shock and leave the electronic connection unhooked will it throw a code and if so will it hurt anything? Is there a device to fool the computer?

Thanks

Aug 16, 2008 | 06:06 PM

theadmiral94

Drifting

Joined: Sep 2003

Posts: 1,363

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From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ

Quote:

Originally Posted by GS023

Yes, it should "throw a code", albeit only the 'selective ride' computer (not the PCM/BCM 'check engine' light -- just the 'selective ride' light(s) on the DIC. You can just ignore the lights (or remove the bulbs if a long-term situation).

Would recommend unplugging and removing the shock actuators (motors on top of shock), and storing them with the shocks (as they are valuable and the next owner might want them back), and taping the connector to prevent water intrusion and a short (which could damage the selective ride computer).

Aug 16, 2008 | 10:26 PM

89FX3

Racer

Joined: Aug 2007

Posts: 252

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From: Ellicott City, MD

Quote:

Originally Posted by GS023

A 200 ohm in-line resistor solves the problem.

Aug 17, 2008 | 12:25 AM

96GS#007

Race Director

Joined: Apr 2000

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From: Texas

Quote:

Originally Posted by theadmiral94

There are no motors on top of the F45 shocks. They are different than the earlier FX3 shocks.

Aug 17, 2008 | 01:17 PM

Z51L9889

Pro

Joined: Feb 2005

Posts: 658

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From: Centerville OH

Quote:

Originally Posted by GS023

It will throw a code and turn on the dash light but it won't hurt a thing.

Before you change the shocks, you may want to try the car first with the solenoids unplugged. The shocks are designed to be in the firmest setting with no power applied to the solenoids. The damping in the firm setting is quite a bit stiffer than most aftermarket performance shocks.

I know it seems like the F45 shocks don't have enough damping for track/autocross work, but keep in mind that under most operating conditions, the control algorithm will never command full damping.

Aug 17, 2008 | 05:49 PM

89FX3

Racer

Joined: Aug 2007

Posts: 252

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From: Ellicott City, MD

umm...like I said earlier...

...a 200 ohm in-line resistor will keep the warning light from lighting up...

Aug 19, 2008 | 12:18 PM

GS023

Thread Starter

Drifting

Joined: Oct 2003

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From: Lorena Texas

Quote:

Originally Posted by 89FX3

...a 200 ohm in-line resistor will keep the warning light from lighting up...

I have made up my resistor. Do I disconnect the position sensor and loop back to the computer or the wire to the motor that changes the shock setting?

thanks

Aug 19, 2008 | 04:41 PM

89FX3

Racer

Joined: Aug 2007

Posts: 252

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From: Ellicott City, MD

Quote:

Originally Posted by GS023

I have made up my resistor. Do I disconnect the position sensor and loop back to the computer or the wire to the motor that changes the shock setting?

thanks

Turns out it's a 220 not 200 ohm resistor as noted in the following "Grand Sport Tech Tip":

http://www.hashmarks.com/techtips/f4...placements.htm

I believe the Koni replacement shocks may come with the resistor, so check there also.

In the meantime here's a CF thread that says "just pull the dash light blub":

http://forums.corvetteforum.com/show...&highlight=f45

Last edited by 89FX3; Aug 19, 2008 at 04:46 PM.