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12-01-2011, 04:40 PM | #1 |
Registered User
Join Date: May 2002
Location: VA
Posts: 1,337
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Do the 4L80Es have a separate computer?
I know in the diesels (6.5Ls), that the 4L80E had a stand alone computer. Was this also true for gas motors of the same year range? Looking at a 1996 for possible parts or to get running.
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12-01-2011, 08:07 PM | #2 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
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Re: Do the 4L80Es have a separate computer?
On gas engines the PCM control both the engine & transmission.
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12-01-2011, 09:38 PM | #3 |
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Join Date: Apr 2000
Location: Delta,Pa
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Re: Do the 4L80Es have a separate computer?
As Cline said only the diesels had a standalone computer but the shift points etc are all wrong for a gasoline engine. There are quite a few aftermarket standalone computers on the market. Tci makes one. Optishift makes one thats a lot cheaper but I have never used it. Junkyard parts for the conversion are going to be scarce. You also have to keep in mind the diesel unit will not work for you as is.
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12-01-2011, 11:37 PM | #4 |
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Join Date: Oct 2008
Location: Pittsburgh, PA
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Re: Do the 4L80Es have a separate computer?
Yep, gasoline uses the same computer as the engine (PCM or whatever they call it these days).
I installed the Baumann Optishift on my C30 to control my 4L80E. It works GREAT. Highly recommended. The programming software that comes with it is a little lame but it gets the job done.
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Tom Chevy by day... 1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E 2011 Chevy Caprice PPV 9C3 6.0L 1995 Chevy Caprice 9C1 1994 Chevy Caprice 9C1 #3 1995 Chevy Caprice Wagon #2 1995 Chevy Impala SS Mopar by night... 1969 Dodge Charger 1972 Chrysler Newport 2dr Hardtop (27K miles) Plus others... |
12-02-2011, 11:39 PM | #5 |
Devil's in the Details
Join Date: Sep 2008
Location: Southern Utah
Posts: 353
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Re: Do the 4L80Es have a separate computer?
I've got a compushift controling my 4L80E and its great. With the optional display I can change most anything on the fly.
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'70 K10 Suburban - TBI 454, 4L80E, NP241C, Dana 60 & 44 - The 10+ Year Project Thread Datsun 240Z, 510 2 door and an old Honda motorcycle |
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