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everything is in but now it wont turn over with a key, jumped the starter its good but now what? the only idea i have is that the atx to mtx conversoin needs a neutral safty switch or the automatic position sensor? when i did the conversoin was their somthing i was supposed to do???

Did u change the wire harness?? Or is it the same ATX one??

If you used the ATX one there is a big circle "KEY" type thing that went on the ATX and shifted the car into different gears. That "KEY" has to be put in the harness, and make sure its in "P" or "N" in order for the car to start. If you remove the "KEY" the car will not even try to start, or if the "KEY" is there but the selector is in "D", "R" or any other Gear the car will not try to start.

In the FAQ it shows you where under the hood to place a small jumper wire to bypass the neutral safty switch.

ok i looked at the faq and their is still aproblem. my plug for my atx is not orange its yellow, no big deal on the colors BUT its a 12 pin not a 9 pin. so anyonr know how to fix it now?

Thats ok, Its acutally the smaller plug your after.

The white one.

ok then the faq dosnt apply and their is no pervious post explaning what to do. do you know how to trick the computer and/or hook up reverse lights? also do i need to keep my atx ecu {not the main but the one to the atx} installed or can i remove it?

Stolen from another post:

when doing DOHC ATX to MTX to get car to start
you must connect the netural safety wires they are located at the very end of the automatic harness (big orange plug )
your looking for the two larger wires in the series blue/black and red/black
connect them.

Or pic here!

http://www.mx-3.com/phpbb2/viewtopic.php?t=50610

that answers that question ,so what about the atx ecu can i remove it and be ok?? oh and thanks for the help !!

LOL remove it and find out

Seriously just pull it out and see what happends

Ya duh.. hey thanks for the help.