Help... Very low rpm at idle & smoke coming from exhaust

[4geclipse]

Hi guys well I'm asking this question about my friends car

He has a 97 GSX with many mods don't kow most of them...

Well here is the problem the other day we were waiting for the car to warm up, and while we were doing that I was going thru his SAFC2 screen. All of a sudden his cars RPM's went down from about 1,000 to 200 and are reving from about 200 rpm to 600 rpm this is happening all the time and the car dies out from time to time. We got it home and while we were driving we noticed that a white smoke was coming from the exhaust and it smelled like gas. Today when we went to check out the car again we noticed that the coolant was leaking from the bottom plus bigh puches of black smoke started to come out from the exhaust and it smells with gas a lot...... Guys what can be the problem can it be the SAFC2 setting that I might of accidently changed or is something wrong with the engine??????????

 

[keeler]

Check oil for coolant, look for any leaks, double check his safc settings, I wouldn't think the SAFC is causing this I'd say something physical with the car.

 

[4geclipse]

well the other think that we moticed is that after driving a short distance the car took almost a quater of the fuel plus as I said the only leak that came out is the coolant that is leaking. There is no other leaks

 

[Glliw]

What are his mods? He's gotta be running extremely rich or has a gas leak. Check the fuel lines. Black smoke is too rich. White smoke is coolant.

 

[4geclipse]

Well as I said i'm not gonna be able to tell you the exact mods, but I know he has a big16g turbo, I also know that he has a clutch intake a intercooler a 3 inch straightpipe exhaust new spark plugs and other little shit , I'm also preety sure a new fuel pump but i'm not gonna be able to tell u which models of it..... The guy he bought it from (which is my cousins friend claims it has about 350 hp, I know he was doing like 12.9 in a 1/4 mile)

Getting back to the car. As I said the coolant is leaking for sure, and the white smoke was coming out of the exhaust yesterday and most of the day today. Than when we turned it on again the rpms droped even more and black smoke strarted coming out..... The car is like chocking and dies out from time to time, but sometimes just stays in the 600-800 rpm range.... Also my suspection is the SAFC because the car was running first and than the rpm dropped right when I was playing with the SAFC....

 

[4geclipse]

anyonw can help me out with this???? what u think the problem is ???????

 

[1990talon]

check what the O2 sensor is set to on the AFC.

 

[4geclipse]

how exactyl do i do that which setting i got to???