wiring harness too short

mizuboi · 10-31-2006, 08:56 AM

hey guys i'm doing a jdm swap right now and it seems that my wiring harness is about a foot too short is this common and how can i fix this and also there are connections that seem to not have any connecters to connect to is there something i should know about jdm swaps? the engine is in right now but the harness isn't reaching anything and i've got wires everywhere with nothing to hook up to

j3pz · 10-31-2006, 12:17 PM

most the time when the people who sell the jdm motors go to get the motor out, they wont take their time to unbolt everything and unclip all the connectors. ussually they take a saw and zzzzzziiiiiiiinnnnnnnnnggggggg right through whatever is in their way. if the harness is jdm it will be shorter becuase they dont run along the back of the firewall (remember jspec supras are right hand drive, meaning the ecu is on the left hand side). so you might wanna look into a new/used harness, or the one that came with the car

jfunez · 11-01-2006, 04:55 AM

you should of used your original harness... it worked with me..

the othe differences are one or two sensors on the thermostat housing and the lack of EGR valve.. other than that..all the sensors hook up straight with out differences...also make sure you are routing the harnes between the injector fuel rail and the intake plenum..

10-31-2006, 12:17 PM	#2
j3pz 500whp yet? Join Date: Nov 2005 Location: Mechanicsville, MD, US of A, 20659 Posts: 1,060	most the time when the people who sell the jdm motors go to get the motor out, they wont take their time to unbolt everything and unclip all the connectors. ussually they take a saw and zzzzzziiiiiiiinnnnnnnnnggggggg right through whatever is in their way. if the harness is jdm it will be shorter becuase they dont run along the back of the firewall (remember jspec supras are right hand drive, meaning the ecu is on the left hand side). so you might wanna look into a new/used harness, or the one that came with the car __________________ 88 N/A w/ 5spd - stock - not running, bhg 87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat

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11-01-2006, 04:55 AM	#3
jfunez 12psi boost Join Date: Oct 2005 Location: georgia,usa Posts: 338	you should of used your original harness... it worked with me.. the othe differences are one or two sensors on the thermostat housing and the lack of EGR valve.. other than that..all the sensors hook up straight with out differences...also make sure you are routing the harnes between the injector fuel rail and the intake plenum..