general issues

[Settles]

I have somethings wrong with the car, but at this time I don't know anything about DSMs. Lets start when I turn it on. My A/F guage settles to 14.9 with my fuel pressure at 53-54. The exhaust kicks out black stuff. Initially i thought it was oil, but I am starting to lean away from that. So when i take off it runs great through 1st. Now lets say I drop the hammer on it. It will studder as if its not getting something it needs, but as soon as i ease up on the gas just a hair it takes off. And it behaves this way through the rest of the gears. Now there are a few times when this doesn't happen, but recently it is every time i try to speed up and pass someone. One time I noticed a cloud of black smoke.
This is my first issue I would like to tackle. Again, I don't know anything about DSMs so I can't guarantee that I will understand all of the lingo, so if you could break it down to NOOBIE terms I would greatly appreciate it.

 

[gmtech121]

what kind of fuel regulator do you have on there because it sounds like your running rich. check the spark plugs and see if they are black because a rich condition will make them like that. im confused as to why your a/f is reading 14.9. does it function properly

 

[keithlag]

that is very high for you fuel pressure it should be 43.5 psi you need to turn down your fuel pressure regulator

 

[Settles]

I am not sure why type of fuel pressure regulator is on the car. This is something I will attempt to check out this weekend. Also, can the fuel pressure be adjusted through the DSMlink or does this have to be manually adjusted somewhere on the car? Thanks for the info, I will see what I can accomplish this weekend and Ill post what I found regarding the spark plugs and the type of regulator on the car.

 

[keithlag]

I am not sure why type of fuel pressure regulator is on the car. This is something I will attempt to check out this weekend. Also, can the fuel pressure be adjusted through the DSMlink or does this have to be manually adjusted somewhere on the car? Thanks for the info, I will see what I can accomplish this weekend and Ill post what I found regarding the spark plugs and the type of regulator on the car.

if the fuel pressure regulator is adjustable and not a standard one you will be able to turn it down

 

[Settles]

Now is this what the pressure should be stock or with all of the upgrades that are on the car. Its pushing 22-24lbs of boost. Now last night i did notice that it starts to act up around 10lbs and that is when the studdering begins.

 

[topdownturbo]

All I can say is holy shit. Thats a lot of boost and a lot of fuel!!!

 

[Settles]

Once I floor it to get into boost my fuel pressure jumps to 60.

 

[JamesH3]

Get fuel pressure in check, and get it tuned.

 

[NHerron]

The fuel pressure will raise on a 1:1 basis with every 1psi of boost. You're only concerned with what the fuel pressure is at idle. For the 2G ECU, the pressure needs to be adjusted to around 43psi at idle as Keith noted

As to your A/F readings, the Innovate Wideband needs to be recalibrated every once and a while. You can find instructions on that through a Google search

http://www.innovatemotorsports.com/support/manual/LC-1_Manual.pdf

Or you have exhaust leaks. Where is your WB sensor located on the exhaust system?