C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ECU Upgrades

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Old Nov 10, 2004 | 10:26 AM
  #1  
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Default ECU Upgrades

I have a 92 vette, I have already chipped it
But was wondering if anyone has swapped out a ECM from a 94 and
Installed into a 92 cause it seems that the Hypertech programmer gives you allot more adjustment control.

unless their is some software i can get for my laptop for around the same price and is also just as painless, i'm all
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Old Nov 10, 2004 | 12:15 PM
  #2  
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I have a 93 and looked into it. Going to 94 computer for me means converting to mass air-flow instead of speed density system. I'm not sure what 92 is, but I would imagine your's is like mine and lacks the MAF sensor. In theory it could be done, but I don't think you can just plug in the computer, you would also have to change the wiring harness, as well as add MAF sensor. I think something was different with O2 sensors as well. I'm sure someone more knowledgeable will chime in.

There are lots of options out there for tweaking your ECU just like the hypertech using a laptop. You can have someone burn a chip for you (http://www.azzatochips.com/) he's active on forum, or do a search for ROMulator / emulator / tunercat. Here's a couple sites
http://www.tunercat.com/
http://www.moates.net/.
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Old Nov 10, 2004 | 12:17 PM
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That would not be easy or cheap.
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Old Nov 11, 2004 | 06:57 AM
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Also, the automatic transmission is computer controlled on the 94, and I believe the ASR is different.
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Old Nov 11, 2004 | 10:35 AM
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92 is a speed density ECM. 94 uses a MAF for it's primary input.
There are many people around that will do a better job than a Hypertech unit. Hypertech, typically isn't worth the $. Their approach is not too far off from GM's,... one size fits all.
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