98 silverado will fire but not idle

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bigrig9135
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Joined: Tue Feb 10, 2015 12:22 am

98 silverado will fire but not idle

Unread post by bigrig9135 » Tue Feb 10, 2015 12:27 am

I just installed a new 5.0 vortec and it will fire up for about 1 sec and then it will die. I am getting fuel but won' keep running.any ideas would be helpful.


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carriedi
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Location: Oregon

Re: 98 silverado will fire but not idle

Unread post by carriedi » Tue Feb 10, 2015 8:14 pm

is your security light coming on? you might need to reprogram your security to the key. it will allow a start up but then turn off your injector pulse killing the engine
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bigrig9135
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Joined: Tue Feb 10, 2015 12:22 am

Re: 98 silverado will fire but not idle

Unread post by bigrig9135 » Wed Feb 11, 2015 9:06 am

thanks can you tell me how to reset the security??

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carriedi
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Location: Oregon

Re: 98 silverado will fire but not idle

Unread post by carriedi » Wed Feb 11, 2015 11:16 am

put the key in the ignition and turn to start for just a split second and then leave the key in run with the engine not running for 10 minutes. then turn the key off for 10 seconds. Sometimes it may take more than one time but usually one time will reset the module.
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bigrig9135
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Joined: Tue Feb 10, 2015 12:22 am

Re: 98 silverado will fire but not idle

Unread post by bigrig9135 » Wed Feb 11, 2015 11:49 am

thank you I will try that today

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