89 KAE: Will not start (and stay running): Fuel pump good, spark good,....

[shpaintball]

hey sedoken...can i get my money yet ...or will you come sign this title and make up a bill of sale?

[240sxmech]

You guys need to read his post before you start telling him you know what it is and tell him useless things to confuse him and have him go buy a pcv valve and tell him it will fix it, if your just guessing then dont say anything . Moon 1ll sounds by what you said is that you are having an injector problem or fuel problem , your timing is not messed up or it would not run when you spray carb cleaner or syphoon gas into the mani. Pull your fuel line of your filter that goes into your fuel rail have a buddy try to start the car if you have gas coming out of the filter then fuel is good to there if no fuel then you have a bad pump or a clog or a clogged filter. If you have fuel then you need to diagnose your injectors with an injector noide light the injector will have power to it the ecu is what sends a ground to the injectors if im not mistaken on our cars the noide light will light up if you have power and ground when cranking if you have that and fuel then you might have stuck injectors. If you ned anymore advice just hit me up im tired of seeing people tell other people try this try that help them or leave them alone

[shpaintball]

ok home boy dont bs me i told him that it was a fuel issue....i had what seems like identical problem w/ my sohc....see this is what happens carbon builds up in your fuel lines...clogs them thus fuel has a hard time getting 2 the injectors ....no fuel no car ...rocket scientist....injectors tend to make a sound or when you remove them its easy to see they are problem ...i think he said he checked his injectors and his filter....im telling you there is more to it...the cars hard lines are clogged or something ...i would have to see the car but i think its carbon build up ....and im tired of pricks like you giving advice...if you cant see the dam car all you can do is give advice and suggestions....

[shpaintball]

re

Car: 1989 240SX FastbackEngine: KA24E StockReplaced Parts: Spark plugs, and used injectors

Here's what the car does:

*I turn the key foward and hear the fuel pump enage

*I turn the key to start and the car turns, turns, turns, turns, but will not start.

*I spray either throttle body cleaner/ siphon gas / or spray starting fluid into the intake manifold and the car will run for a couple of seconds, and then die.

*If I hit the gas while the car is running it revs but then quickly dies afterwards.

* I checked the fuel injectors according to the FSM. They harness showed that it was receiving battery voltage.

*I sprayed throttle body cleaner into the intake manifold. The car started off this. I pressed the gas and the car revved then died after it burnt up the fumes.

*I siphoned gas into the intake manifold. The car ran for about 3 seconds before it cut off again.

*I still do not believe the car is getting fuel, but the fuel rail & fuel pump are fine. The harness side of the injectors is getting voltage.

ps. Yes there is gas in the car.

now i do believe that stuff was covered and moon if it doesnt clear up ...sorry it tried to help ya out ....

[240sxmech]

shpaintball wow your a guenius... seeing how you didnt say anything about fuel problem inyour first post you said mine did the same and check the pcv valve...anyways your an idiot carbon can not build up in your fuel lines seeing how carbon is a bi-product of combustion therefor there is no combustion in your fuel lines,they can get clogged from dirty fuel ...like i told him he didnt test his injectors he just checked to see if he had power and didnt test to see if he was getting his ground signal from the ecu which is what triggers the injectors so dont come on here a bad mouth people when im trying to explain to him how to test his fuel and injectors..anything else you would like to argue about when at the same time we are trying to help this guy,all i said was if you dont know hoiw to help him to test his problems then dont say anything at all

[Chanss_r]

Try replacing your PCV and make sure that you have oil. The same thing happened to my 89 .

[halnfl]

I guess he didn't read my post about 5 or 6 post's up. I don't have simpathy for anyone who doesn't take good advice. You know you have a fuel problem, so don't get off topic and second guess yourself and figure it out.

[shpaintball]

Try replacing your PCV and make sure that you have oil. The same thing happened to my 89 .

point made...lol

[Moon Ill]

hahaha, Don't go flaming each other guys. There could be a million things wrong, diagnosing a car you're not working with is difficult. I appreciate all the help you guys are giving me, but I can only do what I have time to do, and can afford to do.

halnfl: I did read you post, but a PCV valve was more affordable for me at the time. I'll get a Fuel Pressure gauge whenever I get the money, but I'm going to get the rail and injectors first.

Thanks again guys.

[shpaintball]

run some cleaner thru the new rail...i hope it works out for ya...and or stupid...carbon can build up in the pcv line he would know that if he know what pcv stood for...good luck w/ the car glad you got a positive CRANKCASE ventilation valve ..hope it works out for ya

[Moon Ill]

I believe my FPR is not getting vacuum.

At first I didn't understand how a FPR work, but after looking at it I understood. Correct me if I'm wrong though:

The fuel pump sends gas to the top inlet.

The bottom inlet is connected to vacuum. It operates a diaphragm that, when open, allows gas to get into the fuel rail.

^this is correct right?

[SiMpS13]

Have you definitely crossed out it being the fuel pump? I had the same problem My car just died during night time, but would work in the day, so I thought it was my temp sensor. I was able to jump start it so I thought maybe it needed a new battery. It worked fine during the day I took it to the auto parts place to check if maybe it was a bad battery or alternator, but they were good. I was able to get it home by luck because it worked. Then it didn't ever wanna crank over again. So I got out the dealer manual. It said to check the sound, and I thought I heard the fuel pump make a sound but I wasn't sure, my friend and I pulled the line off and gas just dripped out when I turned key to ON. So I just bought a pump from Autozone and damn if it didn't just start back up. This happened just a week ago. Good luck on finding a solution man sucked having my car down for a while.

[Moon Ill]

I haven't completely ruled out that the fuel pump is part of the problem, but I'm ceratain that it isn't the main problem.

I'm 99% sure that it's vacuum right now, so I'm going to go ahead and fix the vaccum mess that is my car. My engine harness also came in so I'm going to install that. After all that, if it doesn't work I'll go back to the drawing board.

[champride]

im having a same problem as you.. last week i finish my auto-manual swap then i tried to started the car for a couple time(it started PERFECTLY). then this week i install new exhaust-header and cat-back then try to start again this time it just crank..i have done all the same test and same thing that you did and still it wont turn..if u fix ur problem please let me know and ill let u know if i fix my..

[Moon Ill]

You're damn right I'll let you know. This thing is frustrating. I'm thinking about calling this thing "Project Perseverance" .

[240sxmech]

If you go back and read what i told you to do you will know exactly what your problem is, the reason no one is wanting to help you anymore is because you arent testing what you should your just listening to what people say and then reply with i think its this but i havent ruled out the other things that it might be......keep guessing and hoping and maybe it will fix itself...

[sedoken]

Ok so what exactly all have u done? what have u replaced?

[Moon Ill]

You guys need to read his post before you start telling him you know what it is and tell him useless things to confuse him and have him go buy a pcv valve and tell him it will fix it, if your just guessing then dont say anything . Moon 1ll sounds by what you said is that you are having an injector problem or fuel problem , your timing is not messed up or it would not run when you spray carb cleaner or syphoon gas into the mani. Pull your fuel line of your filter that goes into your fuel rail have a buddy try to start the car if you have gas coming out of the filter then fuel is good to there if no fuel then you have a bad pump or a clog or a clogged filter. If you have fuel then you need to diagnose your injectors with an injector noide light the injector will have power to it the ecu is what sends a ground to the injectors if im not mistaken on our cars the noide light will light up if you have power and ground when cranking if you have that and fuel then you might have stuck injectors. If you ned anymore advice just hit me up im tired of seeing people tell other people try this try that help them or leave them alone

This is what you told me.

go buy a fuel pres. gauge. Or you can do it the redneck way and take the fuel line loose right past the filter and have someone bump the key while you hold the line into a bottle to see if you've got pressure up to the rail. If you do have pressure then you need to see if you fpr to a dump on you. I had a 01 sierra come threw the shop about 2 months ago and some tard told him he needed all this crap. The guy spent $900 on parts and all he needed was a fpr.

This is what he told me.

If the diode light is the screw driver type thing with the ground clamp, then yes I tested them with that. Everything worked.

I had to modify the harness at the #1 injector because the wires were backwards due to a it being previously modified (not by me)

I haven't touched the ECU.

The thing is, the injectors should be getting signal since there is voltage at the connectors.

If I hard wire and injector will there be an audible click (without frying my injector)?

This is what I was using:



I have yet to get a diode light because I have not clue where to get one. Though, that is how Chiltons told me to check the injectors. Chiltons isn't a very good manual.

Also. Ever heard of a the EGR Solinoid valve? Two vacuum connections on that son'of a gun broke. You're asking me to check electrical, which I can see why, but i've done that.

I check fuel up to the rail and it's there. The FPR isn't letting anything go through, it don't believe it's getting vacuum.

Yesterday I:

*Pulled the main engine harness out

Today I:

*Prepped the new engine harness*Made new vacuum lines*Discovered the broken connections on the EGR control solinoid.

Let me know if I shouldn't have done anything.

Also 240sxmech, check Chiltons again, I'm sure it says to start the engine.

Actually here:

One or More Injectors are Not Clicking

If one or more injectors are found not to be operating, testing the injector driver circuit and computer can be accomplished using a "noid" light. First, with the engine not running and the ignition key in the OFF position, remove the connector from the injector you paln to test, then plug the "noid" light tool into the injector connector. Start the engine and the "noid" light should flash, signaling that the injector driver circuit is working. If the "noid" light flashes, but the injector does not lick when plugged in, replace the injector and retest. If the "noid" light does not flash, the injector driver circuit is faulty. Disconnect the negative battery cable. Unplug the "noid" light form the injector connector and also unplug the ECM. Check the harness between the appropriate pins on the harness side of the ECM connector and the injector connector. Resistance should be less than 5.0 ohms; if not, repair the circuit. If the resistance is within specifications, the injector driver inside the ECM is faulty and replacement of the ECM will be necessary.

You guys need to read his post before you start telling him you know what it is and tell him useless things to confuse him and have him go buy a pcv valve and tell him it will fix it, if your just guessing then dont say anything . Moon 1ll sounds by what you said is that you are having an injector problem or fuel problem , your timing is not messed up or it would not run when you spray carb cleaner or syphoon gas into the mani. Pull your fuel line of your filter that goes into your fuel rail have a buddy try to start the car if you have gas coming out of the filter then fuel is good to there if no fuel then you have a bad pump or a clog or a clogged filter. If you have fuel then you need to diagnose your injectors with an injector noide light the injector will have power to it the ecu is what sends a ground to the injectors if im not mistaken on our cars the noide light will light up if you have power and ground when cranking if you have that and fuel then you might have stuck injectors. If you ned anymore advice just hit me up im tired of seeing people tell other people try this try that help them or leave them alone

[Moon Ill]

Ok so what exactly all have u done? what have u replaced?

I check fuel and electrical to see why my injectors weren't spraying. The injectors may be fully operational, but they are not getting fuel.

The FPR isn't getting vacuum, so today I went ahead and re-did all the vacuum lines. Tomorrow I'm putting everything back together.

[sedoken]

ok then let us know how that goes.

[240sxmech]

anyways chiltons is made by a bunch of idiots they suck as an information tool.... you still havent tested the injector circuit from the ecu using aq diode light or also known as a noide light.NO you dont have to have the car running to test this just like in your case the car wont run.I told you how to check this with a buddy turning over the car while you test the circuit. you can also test them by pulling the fuel rail upwith the injectors on and try cranking it to see if fuel is spraying

[Moon Ill]

I can do that, but I still don't know where to get a diode light form.

I just typed in "diode light +injectors" in yahoo and found this link:

http://wiki.answers.com/Q/How_...e_bad

... after searching autozone, partsamerica, & napa and not being able to find the tool I've got an alternative.

What if I hook the clamp of the circuit tester light to the ground of the injector connector, and that needle to the power side and try the same thing? It should work the same in theory right?

I agree with you on Chilton's, except I can't call the guys idiots.

[Moon Ill]

I believe my FPR is not getting vacuum.

At first I didn't understand how a FPR work, but after looking at it I understood. Correct me if I'm wrong though:

The fuel pump sends gas to the top inlet.

The bottom inlet is connected to vacuum. It operates a diaphragm that, when open, allows gas to get into the fuel rail.

^this is correct right?

If I would have asked this question first this would have been over a lot sooner.

Today I connected everything back up, and much to my dismay the rail still wasn't getting fuel. After a coupe of hours of running back through everything and trying this and that I finally ask Ang, the shop owner, his advice.

"Did you try switching the lines?" Ang says"Huh" I confirminlgy and questionlingly mysefly reply..ly. As I walk back over to the car and look at the lines.

Sure enough the WHOLE TIME! I had the line after the fuel filter going to the FPR (the sending line), and the return line going to the fuel rail.

This was just another case of overthinking and over-analyzing the situation.----------------------------------------------------------------------------------------

Cliff Notes:

Fuel lines going to the metal fuel tubes before the FPR and Fuel rail were reversed. I'm a dumbass.

Thanks for all the help though. Feel free to flame, that was a whole bunch if headache, but now I've got a whole new problem. This one isn't as "simple". I've gotta search around before I make a new thread or ask a question about it though. But I do have video of the problem!

[shpaintball]

lol your a tard...like i said if i coulda seen the car it would probably have been a simple fix...