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just to be clear... i'm talking maps as in "map sensors" reading into you post further i think you're talking about fuel map/ fuel curve etc right? i think we've been talking about different maps, my bad playa!

Hey Andy here's another recent thread where Steven and Albert also state they're the same exact thing. but then again they're crazy ass white boys. http://www.supramania.com/forums/showthread.php?159583-good-old-50cent-map-clamp/page2

i read other places that it was a common myth. no changes/perks are gained from "upgrading" from a 1jz to 2jz (usdm or Jdm) map sensor. i only found a couple links http://soarercentral.com/sc-forum/messages/51875/170929.html...

Andy i thought the 1jz and 2jz maps were the same? no changes to input and output just maybe physical appearance or did i miss something?

either way i keep hearing about people wanting to do this swap... is this a DD supra or a project car? if it's a DD i'd say no, don't do it too many variable about how this can turn out and also too much down time. if it's a project car. then go for it... someone needs to take on the...

Miguel let you keep the IS?

wasn't WES and the Steven relocating the fusebox for you what happened?

this was my 87 a few months back but now swapped everything to my new white 89 setup. i'll post that pic once done with the build.

so right now you have the alternator plug from the harness plugged in but at the other end of those wires, where are they spliced or connected to? if your using a 7m fusebox with a jza70 harness you still have to extend the original 7m 3 pin round plug to your new jz alternator. the power...

clear out your inbox haha no more room to reply to you

here's a link i posted questions i had about this specifically. this may help clear up some things. also has some pics. http://www.supraforums.com/forum/showthread.php?471272-alternator-wires&highlight=1jz+alternator+wires

any updates?

i want to see a picture of the "ground wire" going to the passenger side fender... the "ring" cable that was originally on your 7m alter needs to be hooked up to the little post on the alternator... this cable goes to your fusebox and from the fuse box to the battery.... what do you currently...

have you tried another battery? sounds like an old battery, weak battery with low electrilites?

the guy that did you harness. did he use or tap into the original alternator wires?

yeah pics may help. but the "ring" connector from the original 7m alternator needs to be extended (you can buy the long thick guaged starter wire from autozone) so power gets sent back to your battery... i'll take a pic of what i mean...

so a couple things. your voltage reading with the car on, this was taken with a multi meter? should be seeing about 13.5v +/-. as far as ground wires go (off memory) there is one: head to firewall, trans to firewall/chasis, harness grounds to intake manifold, block to battery, battery to...

cracks on the coils? what Andy said above double check the codes, the CEL is operating correct?

fixed it!!! efi relay apparently went bad during the swap which is odd. i put my relay on his and it started right up and the CEL turned on like normal. thanks everyone for the help!