need help quick!

i was playing with my meth today too make sure it was working properly ,went too put it back together and left it for a minute and my brother tried starting it without the meth nozzle in the intake and the meth vaccuum wasnt on .now it wont start at all ,weirdly its reading on the gas gauge empty but i just filled it ,it just spins over i tried to reset the pcm by taking off the neg for 15 min.no go ,i do have the security light blinking though im not sure about the battery light ,any suggestios im in a hurry i need too have this running quickly ,thanks

You'll probably have to do the security relearn. I don't remember what all is envolved but its like key one for 15 minutes, off for one, on for 15, off for one... It's a long drawn out process without a TechII scanner. Search over on LS1Tech for "security relearn". It's most likely posted there.

Did you check for blown fuses?

http://www.fullsizechevy.com/forums/...d.php?t=164702

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 'fire' and quit. Some vehicles will not engage the starter. This is normal. DO NOT TURN OFF KEY YET !!

2. Leave the key in the "on" position, until the 'security' 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 ! 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 !!

Don't read too much into this. Most people cannot seem to grasp the simplicity of this relearn procedure.

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

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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.

I&#39;ve never done a meth kit. I run naturally aspirated. Surely one of the other guys will chime in. I read in a previous post that others are running the larger jets.

did you move you iat sensor to in front of the meth....

<div class='quotetop'>QUOTE(bud8fan &#064; Jul 9 2007, 03&#58;57 AM) [snapback]99009[/snapback]</div>

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did you move you iat sensor to in front of the meth....
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Ya, Ramsey, where is your intake temp sensor located, I think we sent you a kit to relocate it.