Thread: Passkey III

A tune might be able to shut off the VATS system.

VATS can be turned off using HPtuners.

Did HPT finally fix it?

In DHP there's a fuel pump or injector run time of 4 seconds. Changing that will keep the injectors from stopping

In HPT it's in the same area as fan speed and speed limiter. I forget..it's way to the right of the menus. However.. we didn't have the ability for the longest time to turn it off.

Check out this item I found on eBay: http://pages.ebay.com/motors/link/?n...d=161305735806

Only 13 bucks

Originally Posted by Jeckel

Is there a way to disable or bypass the passkey III on a 2000 GTP?

Yes. Google the topic; vids galore.

Originally Posted by darkhorizon

Unlikely that a 2000 grand prix has theft prevention on the pcm. Most all grand prixs will run without the correct key and whatnot.

Or does it.....

Passkey III – transponder ignition key
The Passkey III anti-theft system uses a transponder inside the head of the ignition key. Theexciter inside the ignition lock cylinder energizes this transponder when the ignition switch isturned on. The transponder transmits a unique signature to the theft deterrent control module.If the key signature transmitted is acceptable to the theft deterrent control module, the theftdeterrent control module will transmit fuel enable password to the PCM. If the fuel enablepassword is correct, the PCM will start the vehicle.

Originally Posted by Jeckel

Mine must be a factory freak then... I can only use the factory GM PK3 key in it... It will start, run for a few seconds (less than 4) and then die. So as unlikely as it might sound to you, I asked a question because I have an issue (I'm cheap and don't want to spend 35 bux on an extra key).

Thank you ExLimey and Billboost, I will look at my tune with DHP and see what the run time is set to. Where is it located in HPTuners?

Who said a PK3 key is $35? I think I paid $5 for my PK3 and paid nothing to get it cut at a local hardware store.

eBay link for 2 for $11

http://www.ebay.com/itm/like/1912579...lpid=82&chn=ps

There are other options showing on that link where you can get them even cheaper.

Pretty sure you need a good PK3 key to program the new keys. The directions I got with the keys that I bought have you put the good key in the ignition, turn it on then off, put in the new unprogrammed key then turn the ignition on then off. If the OPs key is bad then he can't program the new key. The dealer may be the only option.

Originally Posted by ExLimey

Pretty sure you need a good PK3 key to program the new keys. The directions I got with the keys that I bought have you put the good key in the ignition, turn it on then off, put in the new unprogrammed key then turn the ignition on then off. If the OPs key is bad then he can't program the new key. The dealer may be the only option.

A locksmith can program it too.

And..if the ignition is bad and not reading the key.. then you need to bypass and stop worrying about keys.

Bam.. take that key guys

I had a local 02 that had the ignition issue. Programmed it out. Poof.. car started every time.

You do what I suggested in my first post.

i may have missed something, but why do you think its the key? it runs for a few seconds then stalls seems like a fuel pressure resistor gone bad.