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school me on 98 ls1 pcm's

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Old 09-25-2012, 05:57 PM
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Motor detonations LOL
Old 09-25-2012, 06:36 PM
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Originally Posted by JUSTINSWS6
Nope. Pull In, plug in, pull out. Easy as that.
Missouri will fail you on your safety if you dont have cats on your car.
Old 09-25-2012, 09:25 PM
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Where are they located?



Originally Posted by 87silverbullet
OOOOKkkaaaayyy nevermind on that one. If you don't mind the drive Speed Inc has one of the baddest tuners around. He has tuned multiple 7 second cars so a 98 pcm is nothing
Old 09-26-2012, 08:25 AM
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Originally Posted by GrnGoblin
Where are they located?
They are in Schaumberg, IL right outside of Chicago. just google mapped it and it looks like they are about 5 hours from you.
Old 09-26-2012, 04:28 PM
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Their is a company that sells the +99 PCM already to go for 98 cars, they even get the fuel sender rough calibrated or something along those lines. I unfortunately do not remember who it was.
Old 09-26-2012, 06:40 PM
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Originally Posted by ls1wallen
Missouri will fail you on your safety if you dont have cats on your car.
you put on fake cats. or cats and you just cut the top off so it looks like they are there.
Old 09-29-2012, 08:28 AM
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Found the place that sells the converted/fuel segmented PCM and its a package deal with the bracket. http://mrk-motorsports.com/pages/store.html
Would maybe save a big headache, hope I didnt step on any toes with the link....
Old 09-29-2012, 09:20 AM
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Originally Posted by TT427
Found the place that sells the converted/fuel segmented PCM and its a package deal with the bracket. http://mrk-motorsports.com/pages/store.html
Would maybe save a big headache, hope I didnt step on any toes with the link....
Great to learn where a nice PCM and bracket are available.
However, I think this will require a '99-02 wiring harness; a '98 harness would have to be completely repinned.

BTW - The '99-02 PCM mounting bracket is GM part #10275815; it is out of production with no known parts available from any dealer. However, punch that number into ebay and used ones are available.
Old 10-07-2012, 07:08 AM
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I was wondering if I can use a 98 PCM and wire harness on a 99 ls1 I'm having a hard time finding a 99+ year for a reasonable price...don't plan on tuning either just want everything in my 97z28 to run after the swap



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