1991 Oldsmobile 98 ignition replacement

1991 OLDSMOBILE 98
100,000 MILES • 6 CYL • FWD • AUTOMATIC
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MIKEYBOY22
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  • 1 POST
when replacing an ignition cylinder on a !991 oldsmobile 98 with the passkey system. Does the cylinder have to take the same key as the old one so the ohms are correct for the computer to read.
May 26, 2011 at 11:28 PM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
either that or the new key should have the same resistance. it can be measured with either an ohmmeter or gm's tool. or after getting the resistance make up a resistor of about the same value with radio shack resistors and splice them into the yellow wire that senses the key.
Aug 18, 2011 at 8:46 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
either that or the new key should have the same resistance. it can be measured with either an ohmmeter or gm's tool. or after getting the resistance make up a resistor of about the same value with radio shack resistors and splice them into the yellow wire that senses the key. then use an unchipped key!
Aug 18, 2011 at 8:46 AM
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