Valet key issues
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Intermediate
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Valet key issues
Still haggling with the owner on this ZR1. I have read several threads about the valet key not working properly and not allowing full power. My question is if the valet key is turned to full power and the full power light is on could it still be a problem not allowing the secondary's to function???? Its a 1990 no SES light on...
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From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Still haggling with the owner on this ZR1. I have read several threads about the valet key not working properly and not allowing full power. My question is if the valet key is turned to full power and the full power light is on could it still be a problem not allowing the secondary's to function???? Its a 1990 no SES light on...
Tech Contributor
Joined: Aug 2006
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From: Peoria Arizona.. Resident Gold Cylon
In MY 91-MY 95 ZR-1s they went to a valet key module. The indication of the key was active was a small green LED that would illuminate with the turn of the valet key meeting full power is available. GM left the script logo in the DIC but it was never meant to active for the 91-95 Zs.
Normally first indication of trouble in the DIC is a Service Engine Soon or SES light in the DIC. If this light is illuminated for ANY Reason the car will NOT activate the secondary's meaning in layman's terms the car will not activate the last 8 injectors or true FULL POWER. The car will default to valet mode until the SES fault is cleared or corrected.
Last edited by Goldcylon; Jun 29, 2016 at 09:46 AM.
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Why don't you post up your location, I'm sure if a current ZR-1 owner is near they would be happy to look at the car with you.
Tech Contributor
Joined: Aug 2006
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From: Peoria Arizona.. Resident Gold Cylon
Still haggling with the owner on this ZR1. I have read several threads about the valet key not working properly and not allowing full power. My question is if the valet key is turned to full power and the full power light is on could it still be a problem not allowing the secondary's to function???? Its a 1990 no SES light on...
Do you have a OBD1 scanner. You could scan for faults in the ALDL port to the underside of the right knee bolster.
Something is up if you cant feel a dramatic difference between 8 and 16 injectors
Tech Contributor
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From: Peoria Arizona.. Resident Gold Cylon
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Melting Slicks
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From: Mullica Hill New Jersey
What he said!
Check to make sure that the SES light bulb is neither missing or burned out! It should illuminate during start-up.
This would not be the first time that one was "accidentally" removed to perhaps stop the glare, or maybe for some other reason.
Marty
Check to make sure that the SES light bulb is neither missing or burned out! It should illuminate during start-up.
This would not be the first time that one was "accidentally" removed to perhaps stop the glare, or maybe for some other reason.
Marty
Team Owner
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Actually a "KEY-ON/BULB-CHECK" should be done on any of these cars to confirm systems/options that maybe have been tampered with/defeated or whatever. BULB-CHECK changes year to tear but it's certainly a "must check" I'd think.
Thread Starter
Intermediate
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.
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Joined: Dec 2003
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From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Sorry Fellas been away from the computer.....Ill check the SES light if I go for another test drive...The full power light does come on, I just did not know if the light is on if there could still be a issue with the switch and the secondary's not working. From all the info you great guys have passed on to me I know the secondary's are not working and I think it might be a vacuum issue..Thank you all for the help.
.
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From: Bartlett Illinois
Also the 1990 Power key cylinder is quite easy to repair. When I turned my key to full power, I had to find the 'sweet spot' for the light to stay on and power power to be engaged.
I took the key cylinder apart and tweaked the contact tangs. works perfect now.. but then it is ALWAYS ON!!!
I took the key cylinder apart and tweaked the contact tangs. works perfect now.. but then it is ALWAYS ON!!!
Pro
Joined: Apr 2011
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Yes but that was only a option for the MY90 ZR-1. It was an actual key and a cylinder that was turned and then the "FULL POWER" Script would light up in the Drivers Information Center or (DIC). Your right that cylinder is a pretty easy fix
In MY 91-MY 95 ZR-1s they went to a valet key module. The indication of the key was active was a small green LED that would illuminate with the turn of the valet key meeting full power is available. GM left the script logo in the DIC but it was never meant to active for the 91-95 Zs.
Normally first indication of trouble in the DIC is a Service Engine Soon or SES light in the DIC. If this light is illuminated for ANY Reason the car will NOT activate the secondary's meaning in layman's terms the car will not activate the last 8 injectors or true FULL POWER. The car will default to valet mode until the SES fault is cleared or corrected.
In MY 91-MY 95 ZR-1s they went to a valet key module. The indication of the key was active was a small green LED that would illuminate with the turn of the valet key meeting full power is available. GM left the script logo in the DIC but it was never meant to active for the 91-95 Zs.
Normally first indication of trouble in the DIC is a Service Engine Soon or SES light in the DIC. If this light is illuminated for ANY Reason the car will NOT activate the secondary's meaning in layman's terms the car will not activate the last 8 injectors or true FULL POWER. The car will default to valet mode until the SES fault is cleared or corrected.
Tech Contributor
Joined: Aug 2006
Posts: 9,933
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From: Peoria Arizona.. Resident Gold Cylon
