if u know 240's help me

[lscustoms]

Ok so I'm neer to finishing my ka24e build it is a stock na build removed the EMMISIONS, I just bought the pacesetters hot shot headers. After installing that along with a test pipe I turn the car on no question time.

1. After has the car on for no more then 30 seconds the headers got super hot.. is this nrml?

NOTE the cooling system has no yet been conected so its running dry no water.^ only for test start.

2. When I went to turn on the car it would crank and crank but would not fire I sprayed alil brake cleaner into a vac line and turn on fine. Ran fine and turned off and tryed to turn it again and same thing would crank and wouldn't fire why??

^NOTE car would tuen on fine less then a week ago with open headers
Also injectors are new
Filter is fine
Fuel pump is workin car stay on once turned on with alil brake cleaner

Plz help me or if any one can come take a look at it I can buy lunch

[LayNLow]

Add coolant then come back.

[nismolvr]

sounds like you have intake manifold leak,making engine run lean ,thats why headers getting red hot,excessive oxygen in cyl not enough fuel,check for vacuum leaks.

[racepar1]

Add coolant then come back.

Almost right...

Add intelligence, then come back...

:duh:

[sectorjeff]

like they said dude add coolant nd see if it helps:mepoke:

[lscustoms]

Well how about question two won't turn on it will crank and crank but won't fire unless I spray a lil brake cleaner into the itm and once it shoots up it runs fine?

[ranger240]

you do realize that the egr system helps enhance mileage when cruising right? inert gas=doesnt burn=less gas needed for a proper a/f ratio

the aiv thingy majiggy next to the exhaust manifold, sure take that out or whatever but egr helps things out

[racepar1]

Well how about question two won't turn on it will crank and crank but won't fire unless I spray a lil brake cleaner into the itm and once it shoots up it runs fine?

Dude, YOU put that engine together???

No wonder it doesn't work.

What you did to the engine makes even less sense then your problems. Here's some important points for you...

-There is no such thing as a "pacesetter hotshot header".

-Exhaust usually gets hot fast... You do realize that burning fuel is hot right???

-Removing all your emissions equipment did nothing for you power wise. Why the fuck would you keep a KA if it's not going to be smog legal???

-Punctuation, spelling, and actual sentences are helpful. First off you come off like a complete fucking moron, second others may be more willing to take the time to help someone that wants help bad enough to take the time to write a comprehensible post.

There are too many possibilities for any of us to give you your answer on a silver platter as you desire. It could be the ECU, you could just be a jackass and the fuel pump isn't actually putting out enough pressure. Nobody is going to fix your car for lunch either. I'll tell you what, if you tow the car to my shop I might be able to fix it for you. I accept nothing less then cash money though, preferrably hundreds...

[nismolvr]

you do realize that the egr system helps enhance mileage when cruising right? inert gas=doesnt burn=less gas needed for a proper a/f ratio

the aiv thingy majiggy next to the exhaust manifold, sure take that out or whatever but egr helps things outThe Egr valve opens at cruise to introduce inert/exhaust gases into the intake to lower cylinder temps and stop the production of Nox ,nox is produced when cylinder temps are extreme ,this depletes Ozone layer.Egr system is strictly for emmisions it does not give better gas mileage .Engine will create more power with out egr.I've Never seen a racing engine with egr system installed.As far as an egr helping with gas mileage neverheard of it ,it would affect a/f ratio and throw it out of wack,that is why it only comes on at cruise,try and manually open egr valve at idle and tell me what happens...

[CleanAndLegit]

i need my moneyy....

[NismOkatFreaK]

Personally, Id take it to racepar1 if I were you.
If you cant get your engine started after a rebuild, chances are you didn't know what the hell you were doing. Troubleshooting engine problems is easy when you know what to look for, if not its like staring at a wall!

[racepar1]

The Egr valve opens at cruise to introduce inert/exhaust gases into the intake to lower cylinder temps and stop the production of Nox ,nox is produced when cylinder temps are extreme ,this depletes Ozone layer.Egr system is strictly for emmisions it does not give better gas mileage .Engine will create more power with out egr.I've Never seen a racing engine with egr system installed.As far as an egr helping with gas mileage neverheard of it ,it would affect a/f ratio and throw it out of wack,that is why it only comes on at cruise,try and manually open egr valve at idle and tell me what happens...

Actually, an EGR valve DOES help gas mileage a little. It is certainly not it's primary function, but it does increase the mileage a little. The inert gasses that the EGR injects do not affect the fuel mixture because they are, well, inert. Lets say that the O2 reads fuel as +1 and oxygen as -1, the EGR gasses would register as a 0 therefore not affecting fuel mixture. Those gasses do however take the place of both the air and the fuel. Less air and less fuel = better mileage...

Racing engines do not have EGR's for a couple reasons...

1-More parts = more weight and more stuff to fail. On a racecar weight and stuff to fail are not good things.

2- On a racecar equipped with an EGR valve the damn thing wouldn't ever even open. EGR's open at cruise, on a racecar you are pretty much either full throttle or not on the throttle at all. It would be absolutely pointless in a racing application.

[spools420a]

Well how about question two won't turn on it will crank and crank but won't fire unless I spray a lil brake cleaner into the itm and once it shoots up it runs fine?
your running super lean thats why the exhaust gets red hot and youo neeed to spray something to ignite the combustion,check all fuel related from fuel press/regulator/pump/vacuum leak/kink inline/dirty fuel filter make sure test the pump so its flowing fuel propper.If you dont have a fsm then an chilton will help for each test.

[nismolvr]

Actually, an EGR valve DOES help gas mileage a little. It is certainly not it's primary function, but it does increase the mileage a little. The inert gasses that the EGR injects do not affect the fuel mixture because they are, well, inert. Lets say that the O2 reads fuel as +1 and oxygen as -1, the EGR gasses would register as a 0 therefore not affecting fuel mixture. Those gasses do however take the place of both the air and the fuel. Less air and less fuel = better mileage...

Racing engines do not have EGR's for a couple reasons...

1-More parts = more weight and more stuff to fail. On a racecar weight and stuff to fail are not good things.

2- On a racecar equipped with an EGR valve the damn thing wouldn't ever even open. EGR's open at cruise, on a racecar you are pretty much either full throttle or not on the throttle at all. It would be absolutely pointless in a racing application.I assume this kid remooved the egr system becasuse he wanted to get more power out of his Racing ka2.4l LOL.You made some interesting points.generally when I think of a EGR system I think in terms of a carburated engine ,Not fuel injected ,my bad .Im from the old school.Inert gases do affect a/f ratios and power production @ cruise.No one cruises in racing but Your throttle plate would cycle through the cruise range (where egr opens)on the way to wide open throttle.Useless when you need all the air in cylinders to produce every inch of power ,In racing your not really worried about Gas mileage,unless its an endurance race,where strategy is key.I assume this guy wanted to get a couple more ponies out of his KA.I see your point where you say O2 sensor would see less O2 then adjust injectors to lean fuel trim out a little thus going into economy mode ,like in a Honda using a wideband O2 .Inert gases do affect A/f [email protected] cruise but Todays Fuel injected cars adjust on the fly to compensate.On a carburated Engine with out an O2 feedback ,it wouldnt be able to adjust fuel mixture ,it would run a little rich.No fuel saver there.

[hOngsterr]

i dont have a EGR system i waste gas like a muthafucker.

LS just throw away your motor.

be jdm and get a SR lol

[badicalradical]

You sure you don't have your fuel lines crossed?

[racepar1]

I assume this kid remooved the egr system becasuse he wanted to get more power out of his Racing ka2.4l LOL.You made some interesting points.generally when I think of a EGR system I think in terms of a carburated engine ,Not fuel injected ,my bad .Im from the old school.Inert gases do affect a/f ratios and power production @ cruise.No one cruises in racing but Your throttle plate would cycle through the cruise range (where egr opens)on the way to wide open throttle.Useless when you need all the air in cylinders to produce every inch of power ,In racing your not really worried about Gas mileage,unless its an endurance race,where strategy is key.I assume this guy wanted to get a couple more ponies out of his KA.I see your point where you say O2 sensor would see less O2 then adjust injectors to lean fuel trim out a little thus going into economy mode ,like in a Honda using a wideband O2 .Inert gases do affect A/f [email protected] cruise but Todays Fuel injected cars adjust on the fly to compensate.On a carburated Engine with out an O2 feedback ,it wouldnt be able to adjust fuel mixture ,it would run a little rich.No fuel saver there.

I'm not even going to try to tell you why you're wrong anymore at this point. Enjoy your ignorance, I hear it's bliss...

BTW: Interesting idea on the fuel lines being crossed. That's so dumb it would have taken me a day or two to figure out if that actually was the problem. I would highly suggest that he checks that, even though I am not sure if the car would even run at all with the lines crossed.

[nismolvr]

I'm not even going to try to tell you why you're wrong anymore at this point. Enjoy your ignorance, I hear it's bliss...

BTW: Interesting idea on the fuel lines being crossed. That's so dumb it would have taken me a day or two to figure out if that actually was the problem. I would highly suggest that he checks that, even though I am not sure if the car would even run at all with the lines crossed.True ignorance is beleiving you know everything and not being open to other opinions.Im always learning..You called me ignorant ,thats really mature on your side.I complimented you Earlier for enlightening me a little bit .Instead of continuing to make your point you get upset .If you had other insight I sure dont want to hear it now,save it.I think you would probably go into insulting me further. I sure as hell didnt join this forum to argue.I thought this forums was for Nissan /car guys ,enthusiasts that help each other .Earlier in one of your posts you unloaded on some poor kid .Im sure your a nice person ,lighten up.It was never my intention to upset you. Good luck with your shop,seriously. I wont continue this conversation also.

[badicalradical]

Saw it happen on a friends STi build. Car had same symptoms with running but not starting. We went through everything except the lines. I told him to double check but he swore the were fine then the next day I got a call with him laughing.

With the lines feeding the wrong way the regulator is regulating pressure on the wrong side of the rail/injectors thus allowing some fuel through but not enough to start or rev, only somewhat idle.

But I thought it would be possible that's the case on this one.

[racepar1]

True ignorance is beleiving you know everything and not being open to other opinions.Im always learning..You called me ignorant ,thats really mature on your side.I complimented you Earlier for enlightening me a little bit .Instead of continuing to make your point you get upset .If you had other insight I sure dont want to hear it now,save it.I think you would probably go into insulting me further. I sure as hell didnt join this forum to argue.I thought this forums was for Nissan /car guys ,enthusiasts that help each other .Earlier in one of your posts you unloaded on some poor kid .Im sure your a nice person ,lighten up.It was never my intention to upset you. Good luck with your shop,seriously. I wont continue this conversation also.


I'm far from upset, I've just given up. That's a totally different thing. If you actually read your own post you would see exactly why an EGR does actually increase gas mileage. I've been working as a mechanic for about 7-8 years now and I can assure you that carburated cars with EGR valves are few and far between. I understand what you are trying to say, but it doesn't make any sense to think like that, and it still isn't quite right.

[zx6r1852]

prob-sohc

answ- dohc

just playing man hit me up if you need help

[modulation]

1. Your timing is off, too far advanced or retarded. This is why your exhaust manifold gets hot really quickly. I had this same thing happen to me after I did a head gasket.

2. If you removed all emissions you are most likely flooding the car when you start. I removed all emissons too, but I have nistune and tuned the car for it. However, when I start the car totally cold, i still have to press down on the gas and sort of "catch" the car when it starts by giving it gas right as it starts. I have to keep the idle at like 2k rpms for a couple of seconds and then the car acts normally.

When I don't catch it and it floods, i have to unplug all the injector harnesses, let it start, and then it dies, and then plug the harnesses back in and it'll work fine.

[modulation]

PUT COOLANT IN.
The ECU looks at the coolant temp sensor to figure out how much fuel to inject in the engine (+ or - a %), If you have no coolant, the temp sensor has no idea how hot the actual engine is, so the ECU is most likely injecting the wrong amount of fuel.