black/greyish smoke coming out of tailpipe.

[JDM_H22_SLEEPER]

I noticed the other day that when my dad was leaving for work he accelerated a lil bit and this black/greyish colored smoke was coming out the exhaust. The weather was normal, not cold, and I just got home from a drive. I did hit vtec on the drive back home on the FWY. The smoke didn't smell like gasoline, smelled more like oil, burning oil. The smoke wasn't thick, it was rather brief and went away. What's the main problem? Is the car burning too much oil?

[1990Ex]

when is the last time you changed the oil ????

[deevergote]

I assume you have an H22... it helps a LOT to tell people what you have in your car, and what is done to it.

Black smoke is fuel. You're running rich. If you're running a stock P13 ECU, that's very common, especially with added mods like an intake and exhaust.

Aside from getting a custom tune, the best thing to do is to do a full tuneup. Spark plugs, cap, rotor...

[JDM_H22_SLEEPER]

I assume you have an H22... it helps a LOT to tell people what you have in your car, and what is done to it.

Black smoke is fuel. You're running rich. If you're running a stock P13 ECU, that's very common, especially with added mods like an intake and exhaust.

Aside from getting a custom tune, the best thing to do is to do a full tuneup. Spark plugs, cap, rotor...

Ah ic. Well I just recently changed out my spark plugs, got a new distributor cap [whole assembly], I believe I was running 10W-30, my last oil change was about 1,500 miles ago, I usually change it out every 3,000 miles. Any other ideas?

[deevergote]

Does it happen when you accelerate hard, or all the time?

The P13 generally makes you run rich. It's common to see a puff of black from an H22 with a P13, intake, and exhaust.

[KSUcb7]

assuming you've got a h22, deevergote is dead on. If you've got an f22b1 or something else with vtec, we might have some more problem solving to do

[BLUBB2]

Well its better to run rich than lean,Ill tell you that.lol

Everybody else is right though cap,rotor,spark plugs and wires.
Also quite possibly 02 sensor and check igntion timing.

[JDM_H22_SLEEPER]

Well its better to run rich than lean,Ill tell you that.lol

Everybody else is right though cap,rotor,spark plugs and wires.
Also quite possibly 02 sensor and check igntion timing.

Ah wires is what I need to change. My alternator is giving out, or my wires aren't supplying enough power to the plugs. Stock wires, stock alternator, got it off of my f22a1 when I did the h22a swap. I'll check on the 02 sensor and the ignition timing is perfect. It doesn't give a puff of smoke all the time tho, its just brief and it goes away.

[SleeperSEDAN]

The problem isn't probably that big of deal if you are treating it as a small one. If could be valve seals leaking a little oil. Could be your mufflers are filled with shit and some times you are seeing it burn off... could be a bunch of things. Monitor your oil and check it at the end of each day. If its not burning a bunch your fine. They are revving high and being beaten on they will be hurting. If you drive it normal it won't be hurting. Its mostly in how you treat it also...