okay, so i've got a MAJOR fuel problem.. and i need help ASAP. lol

[8_ur_V8]

okay.. so my supra is having a big fuel problem.. or so i think..
around 3-4k rpm when i build boost, it starts to spit and sputter.
so i did the usual, checked all my lines and everything... and nothing.
so i ordered a refurbished fuel pump, refurbished fuel injectors and a new ecu, and a new fuel filter..
installed all of the above... and nada. it acts like it is a failed sensor,
but now the car wont even turn over? and if it does start, it semms like its being flooded..:aigo:
idfk whats wrong but i need help asap,
and im a new supra owner and dont know much about em.. :1zhelp:

 

[grimreaper]

START HERE

let us know when you narrow it down properly. Buying parts can get expensive

 

[8_ur_V8]

yeah ive figured that out the hard way.. lol
i mean we've checked all the obvios things..
oh and also, when we installed the new fuel pump, it didnt sound like it kicked on, so we put the old one on.. how can i tell if the new one is bad... cause it was refurbished, and not new... i mean now its running worse than before...:nono:

 

[grimreaper]

click that link i posted. It will tell you how to test 98% of the car. And our fuel pump doesnt turn on until the engine is cranking..

 

[hvyman]

throwing parts is never a good thing. at least throw new parts when dealing with the fuel.

check for codes even if the light is not on.
http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=23
http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=12