On the turbo cars they just plug right in. Do you have the correct speed sensor? If you cant just plug it in, try to get the connector and pig-tail from the donner car and get a wireing scematic from both cars and just solder the new connector to your old harness.

i was hoping i wasnt going to have to do that but still i wonder if there is another way i hope someone with a 420a manual swap can post a picture or how they did their wiring

can anyone show me a picture of their 5 speed swap of wiring it would be really help full

sorry to bring up such an old thread but i have been non stop searching for a picture or some words telling me wich wires to cross on the prndl harness to start the car i crossed the two black and yellow ones but that didnt do anything help woudl be greatly appreciated thanks

According to my 99 Mitsu manual the NT black/yellow wires are connected together (and to the starter relay and PCM pin 76) and are grounded by the transaxel range switch when in P or N.

look for the gear selector on the tranny where your shifter cable bolts to ,its the black and yellow wires on the plug that plugs into the gear selector

Also, if you want your reverse lights to work, get a plug that fits into the m/t reverse sensor and wire the two wires to pins 5 and 6 of the big trans connector(the one where you need to jump the park nuetral safety switch.)

Don't know if this will cause any problems or not but ECU pin 91 is grounded on a M/T but on a A/T pin 91 goes to starter relay pin 2 and 3 (black/red wire which is ignition system start power). Just thought you might want to know in case you have unexplaned problems.

wow so much really good info thanks so much guys!! so here is what i have noticed the black and yellow wire going to the starter i followed it as far as i could and it just dissapears even on wiki answers some guy lost the little black and yellow wire coming from the starter i dont know where it leads to i was assuming the starter relay so i did an ohm test to see if its the same wire and i didnt read anything . i also did a voltage test on the range plug im assuming its called the one that i need to cross and the one of the black and yellow wires is hot but only with 8.88 volts
then when the key is turned to start the car it jumpst to 12.4 or whatever the battery is at so full voltage so i was thinking that was coming from the relay and the other black and yellow wire on that plug i thought went to the starter but i did an ohm test there too and nothing i think what i need to find out is how to get the 8.8-12.4 wire to somehow reach the starter..is this right?luv where are u getting this information about pin numbers i would really like to see the chart

Sorry, the 2 black/yellow don't connect together - I was so tired when I said that I didn't realize I was looking on the wrong page. Assuming you have a NT harness for AT, the black/yellow on the starter goes to pin 5 of the starter relay. The black/yellow on the transaxel range switch goes to pin 1 of the starter relay and to pin 76 of the PCM.
Also the other post about ECU pin 91 is for the turbo ECU (not NT PCM).
My info is from the 99 Mitsubishi real factory manual.

thanks so much for the help you fit your description wise man but i finaly got it last night i was thinking in my head and i realized the 8.88-12.4 wire on the harness just needed to be grounded so i crossed it with the ground wire on the same harness and now my car runs once again thanks everyone for all the ideas and help

Yes the range switch just grounds that black/yellow (one on it's pin 5) when in P or N. This completes the circuit (to ground) for the starter relay to activate it (ignition Start switch supplies +12v on other side of relay). Without it grounded and key to Start you then get 12.4v since you're just reading the voltage on the other side of the relay through the relay which is forced to be 12.4v. Without it grounded and key not to Start that wire is floating and so you read whatever it happens to float to (8.88 is your case) since something else is also on that wire (PCM pin 76 which has an internal voltage divider).

I am having the SAME problem. I swapped my NT from auto to manual and have everything done but the speedo and odo wiring and also the reverse lights.

Have you had any luck? PLEASE let me know what you did if you got it :]

so i ignored the fact that i dont know how fast im going long enough. so again im trying to hook up my speed sensor.

here is what i did i got a "new style" sensor from autozone with the orange, white/orange, black/blue wires which is dumb because these colors do not match the car but whatever. so i wired the orange to the 8v source pin 44 the black with blue line to the sensor ground pin 43 and the white with orange line to the vss wire pin 66 according to this http://www34.brinkster.com/chamukogs/ATtoMT with pictures in document_files/vss.bmp and i still get nothing.

im assuming that that page is for the manual ecu and pin 66 on the auto ecu has no purpose since the speedo i assume is controlled by the matching input output speed sensor plugs.

so my question is this do i wire my vss using the input output wirings or the wires from the ecu wires 43, 44, 66 does anyone have any knowledge with this?

any help is appreciated

hello again.... im thinking of running some wires from that jumper switch to the inside of my car kind of like a "kill switch" and i was wondering since the car needs to be in p or n to complete the starter circuit does it need to be in d to think its going foward?? does that make sense??

so im done with the swap now i have all these left over parts and cant put them in the classifieds since im still a stupid new member =[ how can i become a proven member i read the terms for it an i think i met them so y am i still lurkin

I know this is a bit of an old thread but im having some issues with 99 eclipse gs that was manual swapped. It has an auto ecu along with a manual wiring harness from the same year car. It also has a antitheft system it came with that from my understand is roped in with the auto starter relay located underneath the steering column. I have done the wiring it suggested is needed with the clutch interlock from the 2gNT forum for the swap but that break down uses an auto harness. The car will crank but wont run at all. The crankshaft and camshaft sensors are both new and the timing is correct. Im looking for someone who has also done this set up previously.