Valet Switch for the c5
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Valet Switch for the c5
I’ve been thinking about trying to rig up some type of valet switch for my C5. The blower just raises too many eyebrows to trust it with anyone. Has anyone done any research on this.
I was thinking that there is probably a way to filter the throttle position sensor output to only read a specified amount when under valet mode.
Has anyone tried this? Does anyone know how the TPS circuit is setup.
I was thinking that there is probably a way to filter the throttle position sensor output to only read a specified amount when under valet mode.
Has anyone tried this? Does anyone know how the TPS circuit is setup.
Racer
Joined: Aug 1999
Posts: 271
Likes: 1
Re: Valet Switch for the c5 (QuickSilver2002)
I looked into it. It seemed so simple, the gas pedal is just a potentiometer, right? Just clamp the voltage so you just get partial throttle, right? Well, not so fast.. It is really 3 different potentiometers, working in oposite directions (one increases in voltage as you step on the pedal, the other DEcreases voltage as you step on the pedal, the other one, uh, I forget.. oh I think it has a different voltage range).. They made the system as foolproof as they could!! I guess that's what we expect, you don't want it jamming the pedal down unexpectedly someday when it gets old and "scratchy" :nono:
Gary
Gary
Pro
Joined: Oct 2002
Posts: 590
Likes: 0
From: Saratoga CA
Re: Valet Switch for the c5 (QuickSilver2002)
I’ve been thinking about trying to rig up some type of valet switch for my C5. The blower just raises too many eyebrows to trust it with anyone. Has anyone done any research on this.
I was thinking that there is probably a way to filter the throttle position sensor output to only read a specified amount when under valet mode.
Has anyone tried this? Does anyone know how the TPS circuit is setup.
I was thinking that there is probably a way to filter the throttle position sensor output to only read a specified amount when under valet mode.
Has anyone tried this? Does anyone know how the TPS circuit is setup.
Le Mans Master
Joined: Dec 2001
Posts: 5,761
Likes: 1
From: Irvine CA
Re: Valet Switch for the c5 (QuickSilver2002)
Cheap and easy way = do not valet park your car. I heard alot of horror stories involving high end sports cars and young valet attendants. Remember Ferris Bueller and his friend's dad's Ferrari?
:nono:
I know some establishments have forced valet parking and I avoid these places like the plague or take my other car.
If you find a way to rig this, please do share. :thumbs:
:nono:
I know some establishments have forced valet parking and I avoid these places like the plague or take my other car.
If you find a way to rig this, please do share. :thumbs:
Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
Re: Valet Switch for the c5 (C5FAST HAND)
I was an 18 yr old valet at a nice hotel in the early 80's. Don't let a valet touch a car that you care about.
Rental car or 1974 Pinto :yesnod:
Vette :nonod:
Rental car or 1974 Pinto :yesnod:
Vette :nonod:
Instructor
Joined: Sep 2002
Posts: 126
Likes: 0
From: Tallahassee FL
Re: Valet Switch for the c5 (QuickSilver2002)
Just pull four plug wires ... instant 4-cyl engine! :lol:
I'm surprised no one has made some sort of device for this yet.. I would think the best way to do it would be through the computer.. maybe design some sort of 'black box' to modify the TPS signals, or maybe spark signals..
I'm surprised no one has made some sort of device for this yet.. I would think the best way to do it would be through the computer.. maybe design some sort of 'black box' to modify the TPS signals, or maybe spark signals..
Instructor
Joined: Sep 2002
Posts: 126
Likes: 0
From: Tallahassee FL
Re: Valet Switch for the c5 (jmzvet)
A year ago, we were vacationing in San Francisco, staying at a nice hotel downtown, and driving a rented Ford Excursion. The second day there, we noticed a HUGE crease/dent in the driver's side door. It looked like the valet had parked next to a cement piller in the garage, and flung the door open about as hard as he could..
I agree, it's pretty sad that you can't take a nice car out to eat at one of those restaurants that only allows valet parking.. You would think you'd be able to trust the valets at such a nice place..
I agree, it's pretty sad that you can't take a nice car out to eat at one of those restaurants that only allows valet parking.. You would think you'd be able to trust the valets at such a nice place..
Instructor
Joined: Jul 2000
Posts: 163
Likes: 0
From: San Jose CA
Re: Valet Switch for the c5 (QuickSilver2002)
My valet switch is basically "breaking" the traction control switch wires. No one can turn off the traction control without a key (switch is in the console box)
Maybe not as good as you need it, but it saves my tires when others drive it !
Paul
Maybe not as good as you need it, but it saves my tires when others drive it !
Paul
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Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
Re: Valet Switch for the c5 (Daryl)
Check out the ZR-1 operation. :eek:
Racer
Joined: Jan 2003
Posts: 411
Likes: 1
From: Newhall CA
Re: Valet Switch for the c5 (rgregory)
I wonder if there is a way to invoke a 'Reduced Engine Power'... I haven't seen this message yet, but I hear that it could result in 4 of the cylinders shutting down.
That would be a buzz-kill for the valet :yesnod:
- C5B
That would be a buzz-kill for the valet :yesnod:
- C5B
Melting Slicks
Joined: Jun 2002
Posts: 3,060
Likes: 3
From: Dublin CA
Re: Valet Switch for the c5
How about a clip that slides over the throttle body hose, and clamps it down to 1/2" high? Kludgy, but if a ZR-1 closes some of the intake, clamping a hose would be easier than putting a second throttle body in.
Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
Re: Valet Switch for the c5 (QuickSilver2002)
I sure it could be done quite easily by plugging a module into the diagnostic port like a window valet. I doubt that enough people would buy it to make it worthwhile ( $ ) for someone to manufacture.
[Modified by jmzvet, 9:35 AM 3/15/2003]
[Modified by jmzvet, 9:35 AM 3/15/2003]
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Re: Valet Switch for the c5 (jmzvet)
I wonder if there is a way to invoke a 'Reduced Engine Power'... I haven't seen this message yet, but I hear that it could result in 4 of the cylinders shutting down.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Re: Valet Switch for the c5 (ICULUKN-C5)
I think circuit between the TPS and the PCM would be the most economical way to design this for the c5; besides the block mentioned above. I have a EE friend that can probably help me design something, but it’s pretty much a back burner project for me right now. This would have been such a simple thing for GM to implement; I really hope they do something like this on the c6.
Burning Brakes
Joined: Dec 2000
Posts: 774
Likes: 2
From: Arizona
Re: Valet Switch for the c5 (ICULUKN-C5)
could always velcro a block of 2x4 to the bottom of your pedal... :lol: :smash:
[Modified by cgh1, 10:59 PM 3/16/2003]
