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4g64 to 4g63 conversion questions. 1998 Spyder GS to GST

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agarcia

10+ Year Contributor
69
24
Jun 27, 2011
Lancaster, Pennsylvania
OK, I got a couple of questions with this swap, by the way i already started the swap and there is no going back, the 4G63 engine is mounted with the 4G64 M/T, i'm using the GST engine wire harness, the problem is that the fuse box has a male connector and the GST harness has a male connector and i cannot connect the two. Should i switch to the 4G64 wire harness? If so, what modifications do i have to do to it? I know that the 4G64 does not have a knock sensor. I have done a lot of research but cannot find any information on this matter. I also want to know if it is necessary to rewire the fuel pump now that i have the turbo engine, can i just use the fuel pump from the GST?

Pictures 1&2 are the Spyder GS fuse box and connector View attachment 230054 View attachment 230055


Pictures 3&4 are the connector fom the GST wire harness
View attachment 230058
View attachment 230056


Pictures 4&5 are the connector from the 4G63 Fuse box and Fuse box
View attachment 230059View attachment 230060
 
Hey i am trying to do the same thing, i have a 97 spyder gs and the floor pans are rusted and I honestly don’t like convertibles, i am going to swap the body into a gst shell and i jus don’t know what to do
 
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