YAY! Got new injectors! but...

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

ok so wonderfully, after a few months of running around with leaky injectors, i finally got it up and ordered some. I ordered some Vemons from Jegs.com

I put them in, everything fit in fine. NOW...i get alot of white smoke and it seems as though its running kinda rough. Aslo there was a electricaly plug on the back of the intake manifold that was, i think unpluged. When i plug it in, it idles about 1200 RPM, unplug it, it runs about 500-700. Also there is a good bit of white smoke coming out the back of the thing...any ideas???

Post by **Kadath128** » Tue Oct 21, 2003 4:32 pm

Now I'm far from an expert on this stuff but could it be the O2 sensor? Or then again, when I was in my electonics class way back when they taught that things run on magic smoke, and when it comes out it's no good anymore. I say you best chance is to try and shove all that smoke back where it came from.

Post by **89240sx** » Tue Oct 21, 2003 4:32 pm

sounds like possibly you are getting too much fuel? just a guess

Post by **Hijacker** » Tue Oct 21, 2003 4:32 pm

you probably need an ECU reflash if they're bigger injectors. new injectors can't be properly utilized until the ECU is told they're there

Post by **Nathan** » Tue Oct 21, 2003 4:32 pm

Dont those flow 10% more than stock injectors? That could well be your problem...

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

yeah well....now my car wont even start. My dad said it probably a blown head casket. It slowly leakes fuel out the bottom. I found that it slowly leakes oil out the bottom of the car. He said it was probably the extra combustion that just tipped it off and blew it. ugghhh!!

Post by **Nismo_Freak** » Tue Oct 21, 2003 4:32 pm

White smoke is either coolant or syn. oil being burnt... not fuel.

Fuel is black, brown and sooty

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

hhmm, so do you think that it could still be a blown headG?the car wont even start now. im gunna see about crankin it up tomorow morning

Post by **Nismo_Freak** » Tue Oct 21, 2003 4:32 pm

Sounds like a HG maybe... does it crank over? If it does then run a compression check on it.

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

tenkawa_akito wrote:you probably need an ECU reflash if they're bigger injectors. new injectors can't be properly utilized until the ECU is told they're there

How would i go about doing that?

Post by **Nathan** » Tue Oct 21, 2003 4:32 pm

are you sure the injectors are not leaking horribly?

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

no they are not leaking at all now. like i said they are brand new injectors. and now it wont crank. The think that stumps me the most is that after we put in the new injectors, did the car did run. It had alot of white smoke coming out the back. but then it just stoped cranking.

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

yeah the engine will constantly turn, but it wont fire and start. Do you think the engine might be flooded?

Post by **[Zero-S]** » Tue Oct 21, 2003 4:32 pm

you didn't by any chance mess with your distributor...did you?

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

no, i dont think so, but that is a good thing to check, and will check

Post by **C-Kwik** » Tue Oct 21, 2003 4:32 pm

pull your spark plugs. If you are running too rich, the plugs will foul. If the plugs are fouled, they will have kind of a black hard soot-like material(carbon) stuck to any portion of the plugs that are exposed to the combustion chamber. If this has happened, get the right size injectors and get new plugs. Don't try geting new plugs first. They will only get fouled again until you remedy the problem.

Post by **dima** » Tue Oct 21, 2003 4:32 pm

Have you check coolant level?

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

grrr, well now when ever i try to turn on the engine, oil starts spilling out the bottom. So this weekend we're going to disasemble it and see where its coming from, my bet is the head gasket.

Post by **C-Kwik** » Tue Oct 21, 2003 4:32 pm

Onto the floor? And where is it coming out of? If it's the headgasket, you should be able to see where it comes out between the head and the block. That would be the only place it would come out if it was a result of the head gasket. If it's coming out somewhere else, it's something else. A good inspection should reveal where the oil is coming from. All this seems to be unlikely from just slightly larger injectors. You may have fouled your plugs, but I doubt you would blow anything. Running a little richer would likely result in slightly lower combustion temperatures and pressure. And if the head gasket was blown, the car would probably still start. Does it stumble while trying to start or just seems to turn freely? Any unusual noises when trying to start?

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

yeah, i have a fealing it is the battery, cuase i had to releave the fuel presure a few times, and i didnt run the car for very long after i started it for the first time. and i started it and restarted it often, only letting it run for a few seconds. So what im thinking is that through all that, the battery is not powerfull enough to turn over the motor, becuase when i try to turn it, it will sound like it makes one rotation, and just clicks. Also when im doing this, the lights, dash, and cd player will turn off.

Post by **SloS13** » Tue Oct 21, 2003 4:32 pm

Z3Px wrote:grrr, well now when ever i try to turn on the engine, oil starts spilling out the bottom.

Sounds like a classic case of a dead battery. Get a DieHard.

Just kiddin, sorry about your motor. that sucks. Good luck with it

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

Well the delima continues, now i think the car is haunted.Ok so after spending about 4 hours with it. I came across these things

1. I dont have a blowen head casket.2. I had a dead battery. Which now works with a charger bought from wal-mart for 40 bucks

Ok so, turns out after we charged up the battery pretty good, still no turn, it would turn but not spark. So we then pretty much knew it was hyrdolocked. Started unpluging spark plugs. After all four plugs where unpluged, as well as the fuel pump off and injectors disoncected. Gas was shooting out of that thing like old faithfull (a guyser), shooting up in the air and all.

So after rotating it for a few seconds, and most all the gas outa the thing. We pluged the sparkplugs back in. and BAM! we have a living engine.

So good, except for the fact that it was running really rough, WHITE smoke was coming out the exhaust like no tomorow, and pretty loud too. BUT NO LEAKES!

As for the supposed oil leak, turns out it was hydrolic fluid leaking from the master cylinder....so....solution there...yay.

So now, as it stands. Basically the car is running with out a fuel pump (with the fuel pump fues out) and with out the electrical connectors on the injectors. and then still heavey white smoke and, and stable ilde. I think i put another hole in the ozone layer, as well as another hole in my brain. Plus, this is the same thing with the new and old injectors.

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

allrighty so tonight, i finally got the thing to stop smoking alot.

I put the old fuel injectors on, and it hasnt been leaking. So great, even though it runs like total crap.

So now im trying to releave the fuel pressure again to see if we can get the new ones back on. After of litterally 1 1/2 hours of trying to releave it, still couldnt. Here is what i did / disconected

1. took of the fual cap2. took out the fuss for the fuel pump.3 took off all the electrical connectors to the injectors. 4 took off the fuel hose that goes to the fuel rail.

Starting the engine....it will NOT idle out. No matter how long you leave it sitting, it will just keep running. Mind you there is no smoke coming out the back of it. Giving even the slightest amount of gas will kill it.

Any ideas on HOW THE HECK THE CAR IS RUNNING WITH OUT A FUEL PUMP AND FUEL INJECTORS?!?!?!?

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

also thanks alot for all the replies.

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

ALSO i found out where the leak is from and what is it. Turns out i have a VERY leaky hydrolic clutch master cylinder, do you think that could cuase it by any chance???

Post by **Z3Px** » Tue Oct 21, 2003 4:32 pm

Just to give yall a little update. I rebuilt the clutch master cylinder which stoped that leak.I found that there was another leak around my heat shield. I took off the heat shield, and found that half of the stock exhaust manifold's bolts and studs, are were completly missing!

So that is obviously where the gas leak was coming from, but i still get white smoke.....(i know i said i got rid of it earlier)

Here is what i think is ultimatly the problem.Becuase of the bad seal on the exhaust manifold, gas was able to leak out, as well as air being sucked in. The O2 sensor, which is located directly after the manifold, if not on it, senses that there is a great deal of air in the mixture, so its calling for more gas, which in turn would make it run extreemly rich and produce white smoke.

What do you think of this prognosis?Thanks alot! My little 89 240sx coop is soooo close to getting back on the road i can taste it, and im dying to drive it!! its been like a week of driving the moms Ford Windstar. grrr

Thanks

Post by **240SX=fun4me!** » Tue Oct 21, 2003 4:32 pm

Wow that sux with your car probs.

Can't wait till I get money to run into these problems

(It'll be so much fun!)

Post by **TruboostPerformance** » Tue Oct 21, 2003 4:32 pm

Sounds to me like the injectors are leaking, I had the same problem when I turboed my old KA. There was fuel all in the cylinders took out the plugs turned the motor over fuel flew everywhere, turned out to be a bad o ring on three of the injectors, you can test them by pulling the whole fuel rail off still conected ,and sit it on your valve cover and lay a very large towel beneath it, basically just remove the two bolts holding it in and rotate the whole rail back enough to get a towel under it. turn the car ignition on, as in the second click, ACC, and watch and see if they leak. If not then you are good to go, if so you got some bad o rings or somthin. Good luck.

YAY! Got new injectors! but...

YAY! Got new injectors! but...

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