LT1-LT4 Modifications 1993-97 Gen II Small Block V8

start up question

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Old Apr 27, 2005 | 02:49 PM
  #1  
95camaroz28's Avatar
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Yesterday after work i went to start my car up and it would have a rough idle i would have to give little bit of throttle to keep it running wanted to die than it went away after bout 1 minute of giving it slight throtle than i i drove around shut it up and started it back up like an hour later and it started up no problems this moruing i went to start my car and it started fine than this after noon i went to start my car and than it did the same thing as last night. I dont think it is the opti spark but it might be. any ideas?????
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Old Apr 27, 2005 | 03:23 PM
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My car did something simliar, one day it started to idle funny and I cound't figure out why, I screwed around with a few things and nothing seemed to work, then one day it just stopped.
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Old Apr 27, 2005 | 04:35 PM
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Check the rubber intake boot. It tears easily and causes these types of problems. If that's not it, get the front up in the air and remove the 2 vent hoses from the bottom of the opti and see if any moisture drips out. If so, blow it out real good with some compressed air.
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Old Apr 27, 2005 | 05:58 PM
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sounds kinda like the latest time my opti went out.
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Old Apr 29, 2005 | 12:49 AM
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its getting more consistant now back fires at low rpms and runs fine when it gets in to the high R's there is a littlle crack in the intake boot i just noticed now i wounder of that could be the ccuase, also what are the possiblyitys of bad O2's car runs fine when it warms up a little, the back fireing with go away... help i need ideas i need to get this car fixed fast. is there anyway i can tell if it is the opti. its not throwing any codes at all
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Old Apr 29, 2005 | 08:56 AM
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Tape up the boot (black duct tape looks factory). I can almost guarantee that unmetered air is your problem, especially if it's getting worse.
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Old Apr 29, 2005 | 03:11 PM
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Yup i found the problem i think i took the intake boot off and looked and it was all cracked and smashed uplike it was letting air through. time for a new boot, stock or whatelse?
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Old May 2, 2005 | 09:22 AM
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duct tape is the cheapest option, then a boneyard or dealer replacement (will probably tear as well), then the Vortec elbow. I have the Vortec elbow and I love it, no more worries about the weak boot!
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