white smoke

[firekirin]

hey everyone just need some help in diagnosing the problem i will start off with what i have on the car

91 240 hatch:

sr20det blacktop Greddy fmicgreddy oil filter relocation kitwalbro 255 fuel pumpspec stage 2 cluth with lightweight flywheelgreddy 3in dp to 3in exhaustapexi avcr boost controller (not adjust just hooked it up and left it stock)

the problem i m having is that when i m at WOT it makes a poping noise like it is burning extra gas or something and one time it was idling and white smoke starting coming out of the exhaust.... wel just tonight i was at a friend and i gave a guy a ride in the car cause he wanted to feel the power of the sr ( not that it is something special or nothing) well i did that then they wanted me to do a little burnout so i spun the tires just a little and it was fine thne when i parked i let it run for a while and then it started blow white smoke..... so i gave it a little gas it kept blowing... i gave it a couple pushes on the gas pedal and it went away.....

i m not a tech or nothing this is why i built this car is to learn.. i believe that it is my o2 sensor ... i have the timing at 15 and i also have to set my TPS sensor cause i havent had a chance to get a voltmeter and do that .... so saying all of this does anyone have any suggestions on what i should do?

i live in florida, and i bought the engine used so pretty much everything is orginal except i replace the intake, exhaust, turbo and the throttle body gaskets.... let me know if you need more info thx

[Asia989]

u have the same thing my ka24e blue top(lol) has

[firekirin]

aight first thing is if you are having problems check you ecu for any codes i didnt even think of that... and all my problems where right there my knock sensor is bad so it is retarding the timing and that is what is making me run like ****.....

[Altiman94]

has it lost any power, also check your coolant level. White smoke indicates burning coolant.

[firekirin]

i did all of that not the coolant or anything esle i believe it was just a massive amount of fuel being burnt off and i believe that fuel can burn white smoke sometimes

[DAEDALUS]

Yes. Exhaust should smell really rich too. Could be an injector seal, or maybe a cracked injector tip. Pull the plugs. Look for the one that doesn't look like the others and/or is wet with gas. I'm not certain, but I don't think a bad o2 sensor would make it run *that* rich. The fact that it was smoking at startup (leaking while shut down) is another clue. Your fuel system is still under a lot of pressure after you shut down.

[s13sr20chris]

yeah, white smoke could be fuel or coolant. coolant would be really thick and sweet smelling. fuel would just burn your nose and be whitish. if its fuel be sure to check engine temp sensor(not the little on for the gauge, the big one next to it) and maf grounds.