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pulled a couple of plugs and this is what they look like

also what do you mean a false reading from the fuel pump ground? the pump kicks on and you can hear it working from in the tank

its the in tank stock 7mge fuel pump

ok wow this is a lot to check ill start with what i tackled today. i found and cleaned the grounds behind the passenger side head and the main lead from the engine block to where the negative battery terminal should be. and a few other random grounds under the fusebox. the result of which was...

fail heres a link to the vid http://www.youtube.com/watch?v=WjRpHaA64sY

heres a vid of what its doing now <object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/WjRpHaA64sY?fs=1&amp;hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed...

wow those quote tags didnt copy over the way i thought they would

yes its a swap the motor is in my 87 supra

my secondaries are phisically in the exaust system but the arent connected to anything they are ziptied to the framerails lol my first two cats are deleted as well the third cat is still there though. yes i wired the swap with the help of a friend (electrical engineer) the motor and ecu and...

which vsv is the vapor vsv i have them still but i have two on the intake manifold. i dont have a fuel pressure guage but i did test the injectors they all pulse properly. if the coolant temp sensor is faulty will the guage still rise up to temp on the dash cluster? ill jump on those grounds...

i did ditch the charcoal canister a while back and the line for that is blocked off, also im not running the secondary o2 sensors. (maybe thats why im not throwing the o2 code.) and what could cause me to throw a code for the maf wiring im not sure how that works

i dont think my 1uz has a cold start injector my motor is from a 97. im getting the maf wiring code now and thats a bout it but i cant find a breach in the wiring

i think ive tried everything folks and to no avail my summer project is still kicking my butt i have replaced cats, ecu's, maf's and vacum hoses and i still have the same issue of the damn thing will not rev past 4k and is kicking black smoke from running extremely rich, i just have a few final...

quick update i have now swapped in another known good ecu and another known good maf and still having the same issues

nice work i really like this project , its really awesome

aaaah ok understood thanks for the quick response

this may be a stupid question but will a ls400 ecu run an sc400 motor with no problems (its in my supra and the ls ecu is less expensive as a replacement) or are the ecu's different

ok so i made some positive progress today, i tested the iacv per sideshows advice and found that with it blocked off and just the throttle opened up that it ran quite smoothly. rev limit is still somewhere around 4 k and running RICH still sorting that out

ok sideshow i blocked off the iacv hose and cracked open the throttle like you said and the hunting stopded and the idle was smooth and consistant, the rev limit rose to right around 4k but it started running rich again to the point of thick black smoke, any ideas?