smoking after replacing injectors?

[kouki_monstor]

i have an 89 sohc 240sx. i just replaced the injectors cuz ive been driving it with 3 cylinders for the past 2 months. it drove like crap and shaked like crazy and made me wanna throw up. i just got new ones today from a guy at a local shop, four of them still in the rail (only a few months old) for $75. i decided, hell, might as well change all 4. so thats what i did. after i replaced them, i started the car, and BAM!!, white smoke comes out of my exhaust and some in my engine bay. it looks to be coming out of the hose that connects to the PCV valve and other areas i cant locate. it smells like unburnt fuel, and it still shakes like im running on 3 cylinders. i tried pulling the connectors off the injectors while the engine is running to see if it makes a difference, and it died when i pulled it off 3 of them. but when i pulled it off the 3rd injector (the one that needed replacing), it doesnt make a difference at all. im guessing its cuz one of my injectors isnt working still (but why? i just replaced all of them) and that im not burning enough fuel, so its making white smoke all over the place. i thought it was the head gasket, but my coolant in the reservoir wasnt boiling or even hot. it was just warm like how it should be. and plus, if it was my head gasket, wouldnt the engine overheat after like 5 minutes? i drove it up and down the street to see how it would run, same ol same ol (still shakes, still no power), and i felt like i was driving a damn rocket (50 ft of white smoke behind me). i didnt replace the o-rings when i installed them cuz they looked fine, so could that be the problem? could it be causing one of the injectors not function correctly? or could it be that one of them is clogged and not spitting out enough fuel to drive the cylinder, so its not burning enough fuel? or could it also be the spark plugs? not making spark to burn off enough fuel so the fuel is just sitting there? i thought it was cuz the connector on the injector was bad, but i plugged it into the old rail that i removed when my engine was running, and it seemed to spit out fuel just fine. i dont know what the problem could be. could unburnt fuel be causing that much smoke to be coming out of the exhaust AND engine bay? plus, i thought unburnt fuel smoke was black? what do u guys thinkg could be wrong? please help!! thanks alot!!

[S13 240SX]

well i'm glad you took the time to wrtie a freaking book but I'm not writing a book back, but I can give you a title to the start of a book!!!

It's called that's what you get when you drive your car 2 months while it runs like **** and runs on 3 cylinders, makes it more screwed up. That's what you get.
Modified by S13 240SX at 9:20 PM 1/6/2006

[kouki_monstor]

lol thanks for the reply. i was actually exaggerating on the tow months thing. i cant really remember how long its been haha. and the reason i wrote a book is to provide detail as to what happened, that way i can get all the help i could and hopefully solve my problem. well thanks for the reply!!

[kouki_monstor]

well i did wat most of u guys told me to do. i flushed the engine and then sprayed mystery oil down the spark plug holes. i then filled up with new oil and put some of the mystery oil into the engine and some in the gas tank, and took it for a test drive. i drove it for about 10 minutes till i thought there was no more smoke coming out. while doing so the car behind me honked at me, and i realized i was only doing 35 on a 45 mile road. so then i revved it a little trying to go faster, when all of a sudden i hear a zapping/hissing sound, almost like a compressed space letting out air in a violent way otherwise it would blow up. after that sound my car started smoking again!! not thru the exhaust, but out of the engine bay. i was scared and drove home, opened up the hood, and the smoke seemed to be coming out of the headers. there was no more smoke coming out of the exhaust, but more in the engine bay. do u know what this could mean? i seriously hope its not any internals. please help!! thanks!

[S13 240SX]

not to be a butt hole, but do you have any clue what your doing?

First you ran the engine for 2 months running on 3 cylinders, YOU SCREWED IT UP WORSE BY leaning out the engine!, now your trying to say your sparying Mystery Oil in the spark plug holes and crap, What kind aof mystery oil, the kind that screws up it even more? I"m sorry but adding crap in with the oil is just stupid.

[kouki_monstor]

u sure ur not trying to be an *** hole? "not trying to be a butt hole", but if u dont have any helpful comments, please dont post. im in no mood for criticism right now. please just keep ur comments to urself unless u really wanna help. thank you.

[S13 240SX]

sorry damn but that's what happens when you run on 3 cylinders for 2 months and then you expect it'll be all better, but okay maybe some of the other forum members will chime in for ya and give you what you want to hear.

[kansas240]

put in fresh spark plugs after doing a compression / leak down test. if the cylinders all have over 120 psi and do not leak, "reading" a frsh set of plugs will tell you where the problem is. if you can't do the above operations, consult a pro.

it sounds like a cracked head or internal blown gasket, check radiator pressure with the proper gauge, if it gets too high, you have a problem.if you can't do the above operations, consult a pro.you need the right tools to do this right.

running too rich/lean on a cylinder will damage it in a short time, over a week will certainly have lasting effects.

[S13 240SX]

running too rich/lean on a cylinder will damage it in a short time, over a week will certainly have lasting effects.

Thank you Kansas240!!!!! now maybe he'll understand what I been trying to tell him since the start.

[(Yoshi)]

not to be a butt hole, but do you have any clue what your doing?

First you ran the engine for 2 months running on 3 cylinders, YOU SCREWED IT UP WORSE BY leaning out the engine!, now your trying to say your sparying Mystery Oil in the spark plug holes and crap, What kind aof mystery oil, the kind that screws up it even more? I"m sorry but adding crap in with the oil is just stupid.

Ok first off I agree, running your engine on three cylinders WILL hurt your engine. Now you, S13, need to know some things. The reason his engine ran on three cylinders is because the injector went bad. So he replaced all of his injectors, took him too long but he replaced them. The reason why he smoked so bad is because while changing his injectors, gas got into his cylinders and ate the oil seal that was around his rings, so when he started it up the pistons suck oil up into the cylinders which was then burnt and cause the smoke and the car to run really bad. At this point he should have just shut it off and not drove it. Then I personally told him to go to the auto store and buy Marvel Mystery Oil, yes that is the name and it is 100% save to put into your oil and even your gas. Don't believe me? Go to pep boys or any auto parts store and read the label. My neighbor has been working on cars all his life and told me about it. And yes, putting things in your oil to protect your engine is smart. So I told him to get a pump and the oil and to drain his oil that was mixed w/ gas and then stick the pump tube down through the spark plug holes into the cylinders to pump out any extra oil in the pistons just in case. Then poor some mystery oil into each cylinder through the spark plug holes to re-seal the piston rings and when that is done to put in new oil and filter. Then to fire it up after replacing all necessary parts. And I told him it will smoke a little bit but that is just the extra mystery oil burning off and once that is burnt off it will stop. So in the process of driving off the extra oil the hissing noise happened, this is probably a result of driving it too long on three cylinders and then driving it while it was smoking after replacing the injectors. The reason I told him to do this, is because it happened to me and to the person that told me to do it. My car has not smoked since.

You did not need to post like that. Yes he shouldn't have drove it but you need to think before you post. I'm sure he realized that he shouldn't have driven it. You start off posting complaining about how long the post was, you didn't have to read it. He posted in-depth so he could get help. Then you reply about how he doesn't know what he's doing and you freak out because he said mystery oil and you don't know what that is. And he didn't expect it to get better he was trying to fix it, and you can't fix anything unless you know what the problem is and that is what he was trying to find out. Then Kansas replied politely and even pointed out how his engine could be damaged from driving it on three cylinders. He replied politely and in a helpful way like you are supposed to. The reason he posted was to get help. You did not, in any of your posts, try to help him. You shouldn't have even posted. You posts were rude, unnecessary and immature.

There you go, I "took the time to wrtie a freaking book" for you.