LT1/LT4 Tech 1993-1997

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Old Aug 31, 2012 | 07:27 PM
  #41  
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Just being overly cautious because I want this thing to run once I get it all put in, and not have any issues. Seems like everything I get into there's always something.
 
Old Aug 31, 2012 | 08:18 PM
  #42  
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i have a 96 opti with a 93 icm so it must be the computer thats different.
 
Old Aug 31, 2012 | 08:55 PM
  #43  
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Originally Posted by craby
i have a 96 opti with a 93 icm so it must be the computer thats different.
Awesome, thanks.

Now I just need to figure out why the old engine turned over the way it did, and when the coil was unhooked turned over fine. scanner showed 0-1 degrees advance, but sometimes it simply wouldn't start. Guess I'll have to see if it happens with the new engine instead of replacing parts that don't need to be replaced. Still baffles me, though.
 
Old Aug 31, 2012 | 09:33 PM
  #44  
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the only difference is the drive pin/gear and vent, 93-94 are same and 95-97 are same. insides are same in all. i have the newer style cam and front cover so newer style opti works.
 
Old Aug 31, 2012 | 10:09 PM
  #45  
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Should probably start a new thread on it, but you have any idea why the engine would turn over like the timing is super advanced, then when you unplug the coil from the opti and it turns over normally? (new starter and battery)
 
Old Sep 1, 2012 | 05:02 PM
  #46  
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Originally Posted by craby
the only difference is the drive pin/gear and vent, 93-94 are same and 95-97 are same. insides are same in all. i have the newer style cam and front cover so newer style opti works.
was there a harness that came with the opti that hooked up? I was told the plugs are different on the opti end.
 
Old Sep 1, 2012 | 08:40 PM
  #47  
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yes the harness is also different. sorry bout that.

95-97
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93-94
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