Heres my set up:
87 turbo ecu w/ nistune
walbro 255 pump
450cc low imp. DSM injectors
Now...
I dont know ANYTHING about nistune like you guys do, as a matter of fact firehawk is actually tuning my car for me, so please take it easy on me.
We finally got everything finished and started the car, using stock injector size as a base point. started the car, of course car ran like absolute CRAP, ran EXTREMELY rich that you had to leave throttle body open at half throttle.
So we went to injector resize, and resized to 450cc injectors, applied it and gave it another shot.
Car ran EVEN worse! Fuel pressure is steady at 38PSI.
In the ADR files, we noticed a possible error?
It says something like this:
300zx-z31-84-85.adr
300zx-z31-86.adr
300zx-z31-86-89.adr
Thats not possible though is it?
Firehawk said that 86 and 87 should be similar, and 88 and 89 are completely diffrent than the rest, but how can you have 86 and then 86-89?
We tried loading them all up, one at a time and starting the car.
Car smokes HEAVILY, runs like crap, it runs SO rich that I can get in to 5psi boost if I open the throtle body. Also... it wont rev over 1.5k rpms.
Firehawk messed around with the raw values if Im not mistaken and it ran a LITTLE better, but still so rich that getting in to boost was possible sitting still...
All of this, is done with the car just sitting, no driving it around, all were trying to figure out is to make the freaking thing run, im so frustrated!
I know I dont know much but I tried my best and need this thing back on the road.
![Sad :(](./images/smilies/icon_sad.gif)