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hey ive got my mk3 on Craigslist for sale but apparently dont post enough to be able to post on classifieds. hopefully this doesnt get locked! http://sfbay.craigslist.org/eby/car/764313709.html

so i checked ohms on all 3 sig lines from the afm-ecu (tha, ks,and vc) and all are w/in spec(.001-.002) but my understanding of electricity is that even one small strand will provide continuity for an ohms check while that line might still be the problem. if i were to jumper the lines...

familiar with hz sigs but just dont have the metering equip, shouldve jacked a scope when i was property of the us navy!...and all my checks have been done at the ecu. i understand that its only those 5 wires, its just that when i installed the motor i wrapped all the wiring nice and tight and...

does anybody have those freq specs?? that is if i can even source a meter for that. so if its a wiring issue but im seeing the same voltage as "vc" then would it be safe to assume that maybe vc and ks are shorting together...a "short to power" situation?? im so excited that i get to trace...

i checked vc and ks to the ecu and both were giving me 4.9 at idle...the vc is good from what i gather but the ks is supposed to fluctuate right?? so would that mean bad afm?? because this is the 2nd one and they arent easy to come by! i meant reference as in a 5v sig to the ecu, sorry for...

b4 i get flamed...the search button is working for shit right now and i wasnt planning on posting but i need help from this point.... the short and sweet: just finished a full teardown rebuild on an 87 7MGTE...everything is hooked up correctly, the car fires and idles pretty smooth...

but it seems that we have the common grey wire replacements and those arent even shielded and are kinda on the small gauge side. wtf :3d_frown:

both my knock sensors have grey wires but they look to have been added at some point...that brown one is silver stranded with the clear and another strand (shielded)... there is supposed to be a grnd on the coilpack bracket though right?

what dude said about the timing actually is correct...if you change your a/f, u theoretically change your firing line and ultimately change your burn time which is a timing change but like he said...."lets not get into that" u want a wideband if u actually plan on doing something with the...

mine too! i have a thread "brown mystery wire" right now...somebody mentioned the possibilty of a coilpack ground...seems to be fitting in my case, is yours missing?

ive got a brown w/ black dots and white w/brown dots going to the ground tab on intake mani so i dont think its that one but thanks for that diagram, nice to see colors as opposed to the b/w of the service manual.

bro i think you just broke it wide open...how far is gainesville so i can plant a fat one on ya?! i just looked at the car and thats the only thing im missing... youre sure that that ground is in fact brown and shielded?

i had the same problem...its a ground that goes on the bottom of the int mani on those little tabs above the starter. should go next to a white dotted ground as well...

so i have exhausted my diagrams and braincells trying to figure out this f**kin wire. i am 90% done rebuilding after a full teardown that i wasnt part of. i have figured out a number of mystery wires but still dont have an answer on this one. i have an 87t with a 7m, everything is...

i did the same thing...its cool though

awesome! figured out that someone clipped the red and yellow for the reverse light but now my mystery wires are all figured out. bout to start her soon! thanks.... and watch out for those pesky shoprags:sarcasm:

hey not to hijack but what color are those ecu ground wires that go to the UIM? im finishing up a build myself and have 2 wires near the starter and vss plug that i cant figure out. they both look like grounds but i can find only one spot to put one. i have the 91 service manual but actually...

just did this and my trans last night...the fill started to strip on me with a 12pt 24mm so i used a 6pt 15/16 and a little persuasion...i dont think it was ever changed. actually looked decent for 130k but im glad i changed it...now if i could finish the damn build and go do those donuts you...

sorry to hear that bro...someone just stole my boat up here in the bay last week...when i asked the pig if anybody would be looking for it she actually laughed at me...the only way you'll get it back is on your own or when you get the bill for it being towed from the drop spot! fuckin bastards!