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Turbo motor swap elec. nightmare


20+ Year Contributor
Jan 26, 2003
Fredericksburg, Virginia
I have a 1g n/t swapped to 5spd and total turbo motor swap. My problem is I even swapped the turbo wire harness in but its for a 5spd. My dash harness is still the factory one-n/t automatic. When it was just na with 5spd I bypassed the inhibitor switch at the fire wall. I dont have a clutch neutral switch or park neutral safety switch. Where in the world can I run my bypass to start my engine? I don't wanna swap the dash harness but I do have power going to the car ie: gauge lights, head lights. Any help on this wire chasing would be overly appreciated.WTF :dsm:

Gs Dewd

15+ Year Contributor
Oct 29, 2003
Crimora, Virginia
you shouldn't have to do anything to the dash harness. It should be the same except for the wire that runs to the turbos clusters boost gauge. I've done the swap and retained all of ly wiring harnesses just added the wires needed for the turbo engine to the fact n't harness which is like 4 wires. If it worened before with the fact dash harness with th n/t engine then the dash harness will work for the turbo engine. You need to check the new harness you put in and make sure you are bypassing the same wires in it that you did with the n/t harness. Also make sure you have the correct year harness (90 to a 90 and 91-94 to a 91-94)


Aug 24, 2003
El Paso, Texas
The fact that the dash harness is from a non-turbo and the engine harness is from a turbo won't affect anything. I did the same thing when I turbo swapped my 1g. I'm not sure how the a/t - m/t would be a problem because I’ve never had any experience with that but what would cause a problem is the computer. Did you swap out the computer for one for a turbo 5-speed? Also within the right year rang as the engine? If not that would be a problem. You need to post the computer that you have in the car. If you have the right computer for your engine/transmission/year and the problem is due to the at -mt swap you can disengage the natural safety switch so try that.
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