<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jul 8 2007, 01&#58;43 PM) [snapback]98952[/snapback]</div>
from westers-garage...

For GM FLASH PCM/VCM replacement, the PASSKEY RELEARN PROCEDURE must be done:

The typical 1998+ Car and Truck Passkey/Antitheft relearn procedure is this:

1. Disable your headlamps. Attempt to start the vehicle. Vehicle may or may not &#39;fire&#39; and quit. Some vehicles will not engage the starter. This is normal. DO NOT TURN OFF KEY YET &#33;&#33;

2. Leave the key in the "on" position, until the &#39;security&#39; light goes out or quits alternately flashing between "Security" and "Battery". This relearn period always takes 10 minutes. How long does this take ? 10 minutes. How long do I have to wait ? 10 minutes.

3. After security light is no longer displayed, shut the key off &#33; Wait 5-10 seconds and repeat the above procedure (steps 1 through 3) another two completed times for a total of 3 start-relearn-attempts, remembering to shut the key off between each 10 minute relearn procedure. This will take 30 minutes--no less. If the 4th start attempt fails to start the vehicle you did one relearn step (or all of them incorrectly). If you left your headlamps on until the battery went dead and voltage dropped below 10.5 volts, no amount of relearn attempts will be learned &#33;&#33;

Don&#39;t read too much into this. Most people cannot seem to grasp the simplicity of this relearn procedure.
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i just wanted too say thank you ,for being right on it .but you wont even guess what stupid did .i left the fuel pump fuse out when i was checking my meth kit for power.speaking of do you know wich nozzle too use on my meth kit ,ive been the under 475 horse nozzle and im getting 150 160 170 intake temps still .do you think i should go with the bigger one or will it dround it out .the other one only drops my temps like 5 degrees getting into boost .wth.im using a 50/50 +mix today and its stillnot lowering it that much.