Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

ignition switch change

Thread Tools
 
Search this Thread
 
Old May 12, 2009 | 10:09 PM
  #1  
wjr's Avatar
wjr
Thread Starter
Junior Member
 
Joined: Apr 2009
Posts: 12
Likes: 0
ignition switch change

I have a 91 camaro RS and I just changed the ignition switch out.The one that was in it had the 2 wires in it and the 1 I put in it didn't.Will not start till I put the old ignition switch to run position and plugged up.Can I just jump these wires together and end up with the same result?Or will it cause me troubles?
Reply
Old May 13, 2009 | 08:11 PM
  #2  
camaronewbie's Avatar
Supreme Member
 
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: ignition switch change

1991 - so you have a VATS system with a VATS key (key has a small 'chip' in it). This 'chip' is a resistor - if the VATS module doesn't get the correct resistance value from the key (eg through the wires), car won't start.

Sounds like you bought the wrong ignition - the new ignition doesn't have the wires, therefore doesn't have the little pickups inside the cylinder, thus can't transmit the correct resistance to the VATS module.

2 options...

1) Return the lock cylinder for the right one. Then take the key blacnk from the new cylinder to ACE Hardware and have them make you keys ($20 ea.) with the same chip resistance as the OLD key from the OLD ignition.

2) Take a volt/ohm meter and measure the resistance of the OLD key, then go to Radio Shack and get a resistor with the same resistance value (get 5 in a pack for $1), locate the two very small orange wires inside the steering column at the bottom of the column, cut them, and install the resistor between the two wire ends on the CAR side, not the steering wheel side.

Tech articles about VATS and bypassing it at:

https://www.thirdgen.org/vats

and

https://www.thirdgen.org/vats_passkey_system
Reply
Old May 13, 2009 | 10:08 PM
  #3  
wjr's Avatar
wjr
Thread Starter
Junior Member
 
Joined: Apr 2009
Posts: 12
Likes: 0
Re: ignition switch change

Thanks for the info I really appreciate,I checked the wires before reading this post today and the voltage reading was 4.23 ,I did not OHM the key but I will now,thanks again
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BRoss99
Electronics
28
Aug 10, 2025 05:08 PM
89GTAOz
Tech / General Engine
13
May 16, 2020 09:31 AM
Bryan F
Tech / General Engine
2
Aug 18, 2015 02:28 PM
92camaroJoe
Tech / General Engine
6
Aug 13, 2015 06:07 AM
djmarch
Tech / General Engine
5
Aug 9, 2015 05:27 PM




All times are GMT -5. The time now is 05:21 AM.