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i just installe slp runners when i start carrevs all the way up

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Old 03-09-2008, 04:07 PM
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Car: 91 z28, 92 rs
Engine: 350 zz4, 305 tbi :(
Transmission: 700r4
i just installed slp runners when i start car revs all the way up

ok i just installed some slp runners when i started my car up it reves all the way up its crazy i have to shut it off before i blow n e thing what the heck did i do wrong?

Last edited by NEWMAN1786; 03-09-2008 at 04:13 PM.
Old 03-09-2008, 04:18 PM
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Re: i just installe slp runners when i start carrevs all the way up

throttle stuck open? check the cable next to your runners and make sure its not hung up in a bad position cause thatll effect it. make sure its run in the factory route.
Old 03-09-2008, 04:29 PM
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Car: 91 z28, 92 rs
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Re: i just installe slp runners when i start carrevs all the way up

Originally Posted by vipershark11
throttle stuck open? check the cable next to your runners and make sure its not hung up in a bad position cause thatll effect it. make sure its run in the factory route.

its not stuck open the cables do feel loose
Old 03-09-2008, 06:02 PM
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Re: i just installe slp runners when i start carrevs all the way up

check all the intake gaskets and make sure bolts are tight!
Old 03-09-2008, 06:42 PM
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Re: i just installe slp runners when i start carrevs all the way up

Maybe the IAC and ECM needs to relearn the idle from being disconnected?
Old 03-09-2008, 06:49 PM
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Re: i just installe slp runners when i start carrevs all the way up

make sure all the bigger vacuum lines are on, like brake booster ect.
Old 03-09-2008, 11:40 PM
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Car: 91 z28, 92 rs
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Re: i just installe slp runners when i start carrevs all the way up

do i have to switch to bigger lines?
Old 03-09-2008, 11:49 PM
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Re: i just installe slp runners when i start carrevs all the way up

you dont need bigger lines, just look for ones you may have broke of left off and double check the gaskets you installed on the runners
Old 03-10-2008, 01:28 AM
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Re: i just installe slp runners when i start carrevs all the way up

did you install this on the 91 Z28 thats in your profile? if so, did you get the later style runners? if you installed the pre-89 style you need to put a freeze plug in the little tube on the drivers side runner. i learned that the hard way some years ago.
Old 03-10-2008, 01:30 AM
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Car: 91 z28, 92 rs
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Re: i just installe slp runners when i start carrevs all the way up

has anyone had this problem b 4 how did you fix it?
Old 03-10-2008, 06:58 AM
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Car: 91 z28, 92 rs
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Re: i just installe slp runners when i start carrevs all the way up

how do i tell if they are the later style runners or not? yes i installed them on the 91 z28
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