Question about 1988 Oldsmobile Delta 88

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The security light is on my 1988 olds 88 what is the security light tied to? What does it monitor

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The key sends an ohms signal to the Theft deterrent module under your dash. Which then sends a signal to your starter allowing it to start, or on some cars it controls spark which allows your car to start then die right away.

It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shuting down while running, im sorry i have no quick fix...

Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
----- http://vats.likeabigdog.com/


Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. For a list of cars effected by this problem. See the NEWROCKIES link on the right side of their page......... They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks.
----- http://newrockies.ca?ap_id=judd0081
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites

Posted on Jan 22, 2011

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97 olds 88 runs rough first few seconds, when you shut it off it will not crank. Had the ignition control module tested and says that it is good. Any ideas?


Will not crank how ? When you turn the key to the start position does the starter engage and spin the engine ? , A crank no start condition . Or nothing happens . A no crank - no start condition . I assume by your statement ( Had ignition control module tested ) That you have a crank no start condition . in which case have you tested input from the crank sensors to the ICM and PCM . What engine does your Old's have ? 3.8 L
Is there spark at the coil's ? Pull plug wires off of the same coil , have someone crank the engine over , Is there a spark jumping from one coil tower to the other ? If so , you don't have an ignition problem , fuel more then likely . Is your SECURITY light lit on the instrument cluster , if it has anti-theft .

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First of all, it isn't all that easy or quick. First, gently work the gray, carpet like cover loose from the area around the tail light ,(this may give you a little trouble). Once you have done this, you will see three silver nuts. These must be unscrewed. The lower left nut must be accessed through a hole next to where the trunk lid fits. (The screws are permanently attached to the lens housing so will not drop into obscurity when the nuts are removed). After removing the nuts, GENTLY work the lens housing away from the car. You may need a screw driver to unseat the housing, but just be gentle.

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