Ok when I step on the throttle get gray smoke. What the hek does gray smoke mean?

 

Uhhh be more specific... it might be normal for an old car.

 

I am tring to find out what gray smoke coming out of the tail pipe means. I step down hard on the gas peddle and all I see is gray smoke coming out the tail pipe. Tail pipe is black but still gets great gas milege. When I put my hand about 3 inches from the tail pipe I get little black specs on my hand. 1.5 liter 89 all stock.

 

you are probably burning oil or you could be running rich but most likely its because of bad piston rings.. i would just replace the motor its cheaper..

 

How many miles are on the motor, sounds worn out

 

black smoke = burning oil.
White smoke = coolant.. So black + white = grey? Your probably burning both lol.

 

hmmm its weird.

my car has been shooting out white smoke from the tail pipe. it goes away once my car is warmed up. but after awhile of driving it starts to get all jettery

 

White smoke is probably condensation in the exhaust, and the 'jittery' problem is more then likely unrelated. Low idle maybe?

 

i dont know if its a low idle. i cant really tell. i havent messed with the idle. i just recently changed the fuel injectors/spark plugs/spark wires.

do you think i would have to change the idle speed b-cuz of that?

 

lol ummm yea just do a ZC swap or something... Like everyone else said... Black smoke actually is runnin rich... Blueish white smoke is burning oil...White smoke is burning coolant.... Grey smoke = all of the above. lol

 

Been addig oil to it but not coolant. Still full since I bought it. Did A compression check and I am getting 180 strait across on all cylinders. Runs great. It doesnt smoke at all exept when I step hard down on the throttle. Then I get a little puff of gray smoke. I got a price on a 30k mile motor japenese exchange for 695 bucks. Does that sound about right?

 

To me it does. I dont think you need to readjust your idle after the maintenance work you did, but adjusting it wont hurt to see if it fixes your problem. Worst case scenario is that it will idle lower, and youll have to readjust it again.

 

alright.
how would you change the idle speed?

 

shouldn't that be in abouther thread...anywho, there's a screw on the top of the throttle body... give her a whirl.

 

do a compresion check on it see if any of you cylenders are leaking.

 

black smoke = running rich not burning oil, oil is more a greyish blueish color

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSR_Hatch12 &raquo;</TD></TR><TR><TD CLASS="quote">do a compresion check on it see if any of you cylenders are leaking.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Big red89 &raquo;</TD></TR><TR><TD CLASS="quote">Did A compression check and I am getting 180 strait across on all cylinders. </TD></TR></TABLE>