hi guys bit of a noobie so bare with me , got myself a 1990 supra 3.0i turbo hard the engine completely rebuilt and new head and refub turbo fitted, put a 3" straight through exhast on (mongoose) removed cat.
installed induction kit .
Haveing problems when i give it alot of power , its goes up to about 50 -60 mph then i get a power drop and engine management light comes on , its fine if i dont put my foot to the floor . a little help as its cost me a small fortune to get this far and its not as quick as it was when the head was gone lol .
do i need to get it retuned or is it something stupid like a pipe is on wrongh an help please.

you need to read your error codes
http://www.toyota-supra.info/forums/index....ct=ST&f=2&t=333
start with the FAQ's
http://www.toyota-supra.info/forums/index.....php?act=SF&f=2

they have a nice little module out there that you just hook right into your diagnostic connector and it will flash the check engine llight on the dash for you so you can count out the codes, comes with a book which will explain everything to you

hmmmm i'm guessing you will be getting code 31 ;)

too much powah :P
too much flow lol

that's what happens when you go and put a nice free flow exhaust on there ;)

what boost are you running?
try turning it down a psi or two

and also check all of your intercooler piping for cracks/leaks etc

oh i see .....you mean it's the guys first fuel cut off

kinda sucks when you are going 50 and the engine cuts out for a 1/2 second huh ? try it at 100
well thats just toyota's way of looking out for you .

when i took my car to the dyno last summer they don't let you drive the car .. so i figured "surely this guy has felt FCO before and knows what it is "
was he hadn't and he insisted something was wrong with my car . lucky it was my last of three runs . a few other dorks were standing around and agreed with the tech that something was wrong . i think the inline 6 threw em too infact he said he's never done a car like this before ..

reminds me of the ads i see in the paper sometimes "toyota supra for sale V-6 engine .....

you mean its not a v-6 , i thought all the v-6 spark plugs and wires were all lined up in one row along the top of the head. :D

lmfao

yea ppl that haven't felt our fuel cut before do shyte themselves LOL
and omg :o he was a tech... don't ever take ur car to him for work eh :P

altho... i would be funny to watch him fix it haha... just as long as you weren't paying for labour for him to find the problem lol
when he rings and says.. it's all fixed... drop ya glovebox and see if theres a dirty fcd in there haha

oh and i've seen those ads soooooo many times as well... one dude i rang up.. he had the gall to say.. "if you know anything about cars you will know it's a v6"
i was like wtf
i asked him... which way do the spark plugs run... 3 then 3 or 1-6 in a straight line
he goes... they go in a straight line to 6
you would think by his own statement he could figure out it was a I6 LOL

hi guys could you be more specific on the diagnostic it says on your link that im to link e1 and t witha jumper but i dont have a t . i have Tt and lots of others can you be more specific i dont eant to link the wrong ones lol.

http://www.cygnusx1.net/supra/library/TSRM.../fi/FI_023.html

here is a manual opened to the page you want

hi guys your info has been a great help .
it came back with an error 34 which is a pressure boost abnormality according to the guide can anyone give me an more info or how to rectify.
thx

start pouring cash into the car

pick your method : there are several options

i think i am going to go with the lexus afm /550 injectors

i am shopping for 550's right now and i have the AFM already i bought it along time ago just haven't gotten to that stage yet

this should raise my fco a few clicks before i go to this ROM upgrade
http://suprasonic.org/sonictech/techtom/

i need to know how to get the car running right without errors if poss do i need to turn down the boost if so how dont want to spend loads of cash looking for a quick cheap fix if possible
cheers

a brick behind the gas pedal

^ :lol:

ahhh i knew it was one of those 30 somethings lol

yea you are hitting fuel cut, you can do the lexus 550 mod or buy a fcd
i would recommend the lexus and 550cc injectors mod rather than a fcd as some ppl have been stupid to install one of these and raise their boost way above 10 and blew up their motor and wondered why

you need to do one of the suggestions and get on a dyno and tune it... the lexus will raise fuel cut to about 20psi i think... i can't remember exactly where the fcd puts it

yes lower your boost 1psi or more... you will find you don't hit it as often if at all

just remember... the fcd requires absolute certainty that you have the fuel to supply your engine DYNO it and ensure you can run the boost you want and have the fuel... buy a fuel pressure regulator also

there will be a T1 or TE1, then jump that with E1