My JDM motor has a different engine connector.

 

JDM Motor - 88+ EA82 non turbo

it's going in my 1987.5 XT Turbo.

 

There are two connectors- one is identical to my USDM motor, the other is different.

 

can i just splice the connector that's different? i plan on tracing the wiring either with a meter and/or the FSM wiring diagram. hopefully i can get it to work.

 

My USDM engine is a Turbo and has more junk on it and it's dirty and isn't in as good condition as the JDM. i'd rather keep the JDM intake on there. the turbo motor has that drives side exhaust port tube that routes up to the intake with that big thing on it...don't know what it is but the JDM motor doesn't have it and i don't want it on there. less stuff is better. the JDM motor doesn't have the exhaust port tapped out anyway.

My JDM motor has a different engine connector.

 

JDM Motor - 88+ EA82 non turbo (MPFI spider)

it's going in my 1987.5 XT Turbo..

 

 

 

gary, that tube from the head to the intake is your egr pipe, your mpfi NA spider has no egr system. just splice the conection ..IIRC you might wanna talk with tex about wirring when using the NA spider in a turbo car, as he wirred in a na spider for turbo use.

 

check out my post on xt6.net as you will have to wire in a resistor keep you CEL off due to lack of an egr system..

gary, that tube from the head to the intake is your egr pipe, your mpfi NA spider has no egr system. just splice the conection ..IIRC you might wanna talk with tex about wirring when using the NA spider in a turbo car, as he wirred in a na spider for turbo use.

 

check out my post on xt6.net as you will have to wire in a resistor keep you CEL off due to lack of an egr system..

 

As far as rewiring the intake for the turbo, all I did was pull apart my old nonspyder harness and took out the knock sensor, and figured out which blank spots on the spyder harness were for the knock sensor and plugged them into it.

russ, he's keeping the jdm intake the same (for a NA use), just gotta make it mate to the cars wirring

thanks guys! i ended up being able to keep almost all of the lower mileage and nicer condition JDM intake stuff.

 

strip the turbo wiring harness off the XT Turbo EA82T intake manifold and installed it on the JDM intake. this was fairly easy and everything worked out fine. i spliced in the JDM terminals/connectors though as they and their rubber boot covers were in much better condition.

 

there is ONE "part" that is missing on the JDM. there is a solenoid just behind the thermostat housing and towards the center of the intake manifold, had to see as it's tucked way under there. i left it disconnected for now. i'm not sure what it's for but it reminds me of solenoids i've seen for locking the transmission center diff? anyone know what this is? since this was the only electrical connection left no used i assume it might be EGR related? but i can't imagine that having a solenoid?

 

one weird side note that has nothing to do with anything. of the two connectors on the JDM motor, one was identical to the XT Turbo motor, the round one. the JDM did not have a square connector like the XT Turbo. the round ones that were identical had the same number of pins and the exact same connector so i assumed those were a dead match. i went to verify this. the wires were all different colors. so then i used a multi-meter to test continuity through various paths. the pins were not even close to the same. i test FI, oil sender, coolant temp, and TPS paths and they didn't match up at all eventhough the connector was the same.

 

but it didn't really matter it was much easier to swap the entire harness then to try and only swap "one" connector or "half" of the harness anyway.

 

the JDM harness connectors looked identical to my RX Turbo (non spider) wiring harness, but i didn't compare anything. two round connectors, one white and one black.

russ, he's keeping the jdm intake the same (for a NA use), just gotta make it mate to the cars wirring

 

derr derr derr....I feel stupid. Ok anyways, I've had both a NA spyder harness and a turbo nonspyder harness apart and they seem to be the same but the spyder harness didn't have the knock sensor that I needed so I had to wire it in. Other then that and the fact that the TPS is a 4 pin connector on the spyder vs. a 3 pin on the nonspyder, and that the sensors are in different locations, they seem to be the same overall so I don't see why the JDM harness would be really any different. My spyder harness plugged right into my '89 RX harness and the only thing I had to do was pull the pins out of the old harness connector for the knock sensor, figure out which holes they went in on the spyder harness and the plugged them in. I hope it works though:rolleyes:

i'll find out if it works shortly.

 

funny thing, i'm almost positive the EA82 JDM and EA82T US motor both had a 4 plug TPS. there is definitely one plug and solenoid looking device under the intake that is not on the EA82 JDM motor that is on the EA82T. i'm assuming it's a solenoid related to the EGR.

 

or it could be a solenoid for the transmission since the JDM was likely a FWD. not sure if any trans solenoids are on the engine though, i'm used to them being mounted in the engine bay.

 

other than that one plug, everything else plugged right in perfectly.

My JDM motor has a different engine connector.

 

JDM Motor - 88+ EA82 non turbo

it's going in my 1987.5 XT Turbo.

 

There are two connectors- one is identical to my USDM motor, the other is different.

 

can i just splice the connector that's different? i plan on tracing the wiring either with a meter and/or the FSM wiring diagram. hopefully i can get it to work.

 

My USDM engine is a Turbo and has more junk on it and it's dirty and isn't in as good condition as the JDM. i'd rather keep the JDM intake on there. the turbo motor has that drives side exhaust port tube that routes up to the intake with that big thing on it...don't know what it is but the JDM motor doesn't have it and i don't want it on there. less stuff is better. the JDM motor doesn't have the exhaust port tapped out anyway.

 

 

I have done this swap before in my 87 wagon.

 

Basically you have switch the bungs from the right of the engine(as if you were the engine), and use the plugs in the original mainifold to plug the old holes. The intakes are symetrical.

 

As far as the wireing goes, if you take a small dental pick the metal pieces inside the connector will unclip and then reclip into the oem connector. The wires are the same color, just a different connector. dont cut and splice, it will change the resistance values.

 

feel free to email me any questions you may have.

i'll find out if it works shortly.

 

funny thing, i'm almost positive the EA82 JDM and EA82T US motor both had a 4 plug TPS. there is definitely one plug and solenoid looking device under the intake that is not on the EA82 JDM motor that is on the EA82T. i'm assuming it's a solenoid related to the EGR.

 

or it could be a solenoid for the transmission since the JDM was likely a FWD. not sure if any trans solenoids are on the engine though, i'm used to them being mounted in the engine bay.

 

other than that one plug, everything else plugged right in perfectly.

 

Yes, from the location and description, I would say that sounds like the EGR solenoid.

As far as the wireing goes, if you take a small dental pick the metal pieces inside the connector will unclip and then reclip into the oem connector. The wires are the same color, just a different connector. dont cut and splice, it will change the resistance values.

that's odd, i saw no similarities between the two. wire colors appeared to be completely different, maybe i need to look again. it's all done now so hopefully it'll run.

gary

that's odd, i saw no similarities between the two. wire colors appeared to be completely different, maybe i need to look again. it's all done now so hopefully it'll run.

gary

 

Mine were the same wire colors, just different positions on the different connectors. Doesnt surprise me though. Of course the years may have something to do with it as well.

Mine were the same wire colors, just different positions on the different connectors. Doesnt surprise me though. Of course the years may have something to do with it as well.

i didn't look into it thoroughly so it is very possible that the wires were the same if they were'nt divided the same between the two connectors. you're information is more thorough than mine if you went into it that far.