stripes777

seems like my car is running extremely rich at WOT, especially at high rpm's. i dont have any o2 sensor hooked up at the bottom end of the header. im pretty sure this is the problem. anyone know how much an o2 sensor is and where i would connect it to? its been missing the whole time, and i dont know where to plug it up to, thanks

Mike_C

what color is the smoke?

Spartanic

White smoke= coolant burning with air and fuel mixture, could be a blown head gasket or worse a warped cylinder head due to excessive overheating.
black smoke= oil burning with fuel and air mixture, could also be a blown head gasket or warped cylinder head due to excessive overheating.

976

Grey smoke = VTEC

skribblah

rolling w/o o2 sensor = your car operating blind. get o2 sensor at autozone. bring 2 bills with you ;[

chezeck da plugs

Si Arn

does WOT mean : wide open throttle?

Dr. EKology

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Si Arn &raquo;</TD></TR><TR><TD CLASS="quote">does WOT mean : wide open throttle?</TD></TR></TABLE>

Correct.

And for the smoke...Might also be shitty piston rings. Do a leakdown/compression test and let us know how the results come out.

rodrez.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EKology &raquo;</TD></TR><TR><TD CLASS="quote">

Correct.

And for the smoke...Might also be shitty piston rings. Do a leakdown/compression test and let us know how the results come out.</TD></TR></TABLE>

Exactly. I just had this problem recently. Car was smoking at high rpm, changed the rings, and it solved the problem

stripes777

o ya , forgot to describe the smoke. if im hauling ***, meaning pretty much switching gears at 6500+ rpm, theres a mean *** cloud of smoke behind, sorta like how spy hunter had that smoke screen weapon behind him, lol

the smoke is dark, 100% sure its not coolant, as the coolant levels dont go down. i think my piston rings in the 4th cylinder are busted because there is oil on the tip of the plug in that cylinder. however, i didnt know a busted ring could cause THAT much smoke at WOT.

im leaning towards more on the missing o2 sensor. and 200 bucks, dam, thats a big time rip off. with the misc. probs my engine is having. im going to just save up and get another engine. thanks alot guys

Dr. EKology

Well from what you described, I doubt its your O2 sensor. Keep an eye on your oil levels and check the plugs in your other cylinders too. Do a leakdown/compression test!!

=GAME=

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rodrez &raquo;</TD></TR><TR><TD CLASS="quote">

Exactly. I just had this problem recently. Car was smoking at high rpm, changed the rings, and it solved the problem</TD></TR></TABLE>

Just curious whats the average price of labor on changing the rings?

976

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by O.G triple O.G &raquo;</TD></TR><TR><TD CLASS="quote">

Just curious whats the average price of labor on changing the rings?</TD></TR></TABLE>

500+

PriMaTe

I thought white smoke was oil while black smoke was just from running rich? Anyway, I don't know how much smoke is a lot but many Cars with b series engines like gs-r's and SI's shoot out a puff of black smoke when shifting while in vtec cause they run so rich from the factory. Thats what i've heard. Anway, you seem to have a problem with the oil in one of the cylinders so i'd get that checked out first

stripes777

ive asked my mechanic about changing rings, he told me it wasnt worth it. as for the smoke, imagine a friggin smoke screen for the car behind me, lol.

my oils levels do burn alot, maybe a quart every 1000 miles. why would piston rings cause so much smoke at wot tho, geez, thats must be alot of oil getting in the cylinder then, haha

Neptune

It almost sounds like you are running on very viscous or very bad oil. Do you take good care of your car? You may have fried a piston ring if you drive at WOT all the time. Are you throwing a code at all, cause if you were that might be O2 sensor related or if your oil light is on, that should be telling you something.

stripes777

on the contrary, i actually baby my car. my car hardly sees vtec, and even rarely hits redline if ever. i do all the maintenance and stuff myself. ahh, well its coo, ill just save up for another engine, the blue beast lives on!!!!!!!!

Quik Chris

Blue smoke is oil. Isn't necessarily your rings, it could also be your valve seals. Have your 'mechanic' do a leak-down test and a compression test. If the leak down is in the red, then its your valve seals, if the compression test is &gt;20psi difference between cylinders, then it's your rings. Then make your rebuild decision.

PriMaTe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stripes777 &raquo;</TD></TR><TR><TD CLASS="quote">ive asked my mechanic about changing rings, he told me it wasnt worth it. as for the smoke, imagine a friggin smoke screen for the car behind me, lol.

my oils levels do burn alot, maybe a quart every 1000 miles. why would piston rings cause so much smoke at wot tho, geez, thats must be alot of oil getting in the cylinder then, haha</TD></TR></TABLE>

lol a smoke screen. I'd say follow the other guys advice and get a compression test.

rodrez.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by O.G triple O.G &raquo;</TD></TR><TR><TD CLASS="quote">

Just curious whats the average price of labor on changing the rings?</TD></TR></TABLE>

Yeah, I'd say around 400-500 cause they have to pull the head. Luckily I have a friend that helped me out with my smokescreen trouble

rodrez.

[QUOTE=stripes777]ive asked my mechanic about changing rings, he told me it wasnt worth it. QUOTE]

Not worth it? Why is that?

Filliam H. Muffman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spartanic &raquo;</TD></TR><TR><TD CLASS="quote">White smoke= coolant burning with air and fuel mixture, could be a blown head gasket or worse a warped cylinder head due to excessive overheating.
black smoke= oil burning with fuel and air mixture, could also be a blown head gasket or warped cylinder head due to excessive overheating.</TD></TR></TABLE>

i dont think thats correct..

white/blue smoke = leaky o-ring, oil burns white

black smoke = unburned fuel.

and as the other person says grey smoke = kick *** VTEc

Dr. EKology

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JUN EK9 &raquo;</TD></TR><TR><TD CLASS="quote">

i dont think thats correct..

white/blue smoke = leaky o-ring, oil burns white

black smoke = unburned fuel.

and as the other person says grey smoke = kick *** VTEc </TD></TR></TABLE>

Wrong. Oil burns blue/light grey. White smoke is coolant. Black/dark grey smoke is unburned fuel, carbon, and other kinds of deposits. This is usually caused by over-agressive injectors/fuel pumps or bad o2's. Grey smoke during vtec is not normal, unless the motor is heavily modified and not running a cat and/or resonator.

turbotime

Hey yeah its your o2, your ECU uses the o2 to determine the a/f levels and adjust accordingly. Without the second o2 your computer will operate in closed loop mode, and thus the rich running. I would say get another o2. I have a 4wire o2 ill let go for 45 shipped.

AzG35

Without and O2, the ECU goes into limp mode and dumps extra fuel. That is your problem

stripes777

who said anything about a seocnd o2 sensor? i dont even have one! the piston ring replacement wasnt worth it because he told me i might as well get another longblock.

how much does a comp. and leak down test cost? thanks

ya, the smoke screen sounds funny huh!??!