doesn't start yet again

[vocationalzero]

I got a 92 s13 with 92 red top. FMIC, profec b spec 2 upgrades otherwise bone stock. It won't start up. I am getting spark to all the plugs, and I am getting fuel to the rail and to the injectors but the injectors are not spitting fuel. You can feel the fuel running through the lines as the fuel pump is priming. Walbro fuel pump, and all new lines with new z32 fuel filter. Plugs are not fouled nor oil coated or anything like that. My TPS is getting proper voltage and my CAS looks perfect. I am assuming however that my timing has not been messed with, I bought the motor off of heavythrottle.com. I can not find a fuel injector relay, nor does the FSM list one, but it lists the ignition relay, are they tied together? I have already replaced the injectors/rail/FPR so that's not it. Any ideas?

[Taylor_Durdan]

i know this sounds dumb but ive seen it 86707896087560876 times.... make sure you have the fuel feed line (filter line) going to the rail port and the return (no filter) going to the regulator. this will cause an issue much like yours. youll feel the fuel, smell it, etc.. but not enough gets to the injectors and pressure wont build in the rail.

[Justin35ll]

Yeah, maybe you switched the lines somewhere. I did that once while replaceing the rear pump lines and it wouldn't start.

[vocationalzero]

Nope, I already checked that I wish it was that easy

[burntricer]

any ecu codes? is it trying to start like cranking and sputtering...? are your injctors not even firing or? a way to check is pull the rail, prime the pump and turn the CAS.... you will see if they are firing from there....

its something stupid and little, i once had a wasp get into my fuel rail when i was changing my injector o-rings...

[vocationalzero]

any ecu codes? is it trying to start like cranking and sputtering...? are your injctors not even firing or? a way to check is pull the rail, prime the pump and turn the CAS.... you will see if they are firing from there....

its something stupid and little, i once had a wasp get into my fuel rail when i was changing my injector o-rings...

ECU is good, no codes. It's trying to crank but the injectors are not firing at all. What do you mean by turn the CAS? It only can bolt in one way.

[Taylor_Durdan]

if you remove the CAs, and turn it by hand with the key on and it plugged in, the ecu thinks the motors being cranked over and you can hear if the injectors are clicking or not...

BUT BE CAREFUL!!

unplug the coilpacks before doing this!!! if not, you could accidentally bump the motor over/run yourself over haha

[nzmoman]

The ignition is linked to all things that make the motor go starter, fuel pump, spark, and air sensor. If you have an issue in the ignition system everything else electrical will work, but the car will not turn over, and you will not get those dash lights. But you ALSO should not get any fuel pressure if its the ignition.

Also, are you sure your ignitor chip is okay? I have seen this kind of issue with bad or faulty ignitors

[blacksrjdm]

^^^^^^^^ thats what I was gonna say, Check your ignitor. I have a good one in jersey if your local, and I see now that you are not at all local so...nm.

[vocationalzero]

The ignition is linked to all things that make the motor go starter, fuel pump, spark, and air sensor. If you have an issue in the ignition system everything else electrical will work, but the car will not turn over, and you will not get those dash lights. But you ALSO should not get any fuel pressure if its the ignition.

Also, are you sure your ignitor chip is okay? I have seen this kind of issue with bad or faulty ignitors

So wait, if the ignitor chip is bad it will keep the injectors from firing? I thought it only controlled the plugs/coil packs.I will try the CAS then, otherwise I think it could be the pins on the ECU. I took a noid light set to the injector harness and they did not light up which leads me to believe the ECU pins for the injectors are bad. But I am wanting to try other options first, thanks guys.

[blacksrjdm]

[QUOTE=vocationalzero]So wait, if the ignitor chip is bad it will keep the injectors from firing? I thought it only controlled the plugs/coil packs.[QUOTE]

No, if the ignitor chip is bad then the computor wont let the injectors fire. U also shouldnt be getting anything from the coils, but it could work both ways. Give it a shot.

[vocationalzero]

I sprayed my engine down with starting fluid and it started and ran until it burned up all the fluid. So could it still be the CAS being off?

[blacksrjdm]

If it started with starter fluid then you have a fuel issue. Without a doubt although, you dont like to listen to me, because i still think it has something to do with the ignotor chip. If the ignitor chip is bad then it shuts down different functions. Fuel delivery is one of them, and the main function of the ignitor chip. U said yourself that you have fuel at the rail but the injectors arent doing their job. CHANGE THE IGNITOR CHIP just like I did when I had the same problem, they are touchy and fail often.

[vocationalzero]

If it started with starter fluid then you have a fuel issue. Without a doubt although, you dont like to listen to me, because i still think it has something to do with the ignotor chip. If the ignitor chip is bad then it shuts down different functions. Fuel delivery is one of them, and the main function of the ignitor chip. U said yourself that you have fuel at the rail but the injectors arent doing their job. CHANGE THE IGNITOR CHIP just like I did when I had the same problem, they are touchy and fail often.

Oh, ok. Thanks a lot. I was just mainly seeing if starting fluid would help cause I wanted to make sure that everything else worked. And just on a side note, with the starting fluid, it would only rev up to about 3K which sounds like a MAF issue too...

[blacksrjdm]

I think your jumping to conclusions on the MAF. I would get it running first.

[vocationalzero]

[godzilla34]

im having the same issues. but i know the harness ecu and ignitor chip are fine. they came off my car which was running awesome. ive also swiched them over a few times to make sure i wasnt being a retard. yet im still in the same spot that you are. im gonna try the cas today and hope thats it. ill check on it once i do that.

[the converted]

There's no way that its the ignitor. If you have a multi-meter check the red wires going into the injectors. They should have +12 volts any time that your key is in the run position. Power comes through a connector that is by the battery and I know I overlooked it once.

[godzilla34]

ive just checked my cas. funny thing... when i took the cas out and spun the end by hand with the ignitor unpluged. it fired all four injectors. but when i put the cas back in at tdc and cranked the motor by hand ( from the harmonic balancer) the injectors didnt send any jungle juice down the intake??? the cam is turning the end of the cas, could it be something from the ignition side? like when you turn the key to start it does it bypass the fuel injectors telling it not to fire? im gonna try and unplug the starter positive (wraping to avoid ground) and have somebody turn the key on while i turn the cas? im not sure if it would work but its another idea to try?

*just tryed above things, injectors will fire if i have the cas out and im turning it by hand when the key is in the on position but when put t to the start and try the same thing t wont send the sgnal to the injectors. (sorry about the spellng my computer snt cooperating with me) so still stuck in the same boat as before. almost ready to drop it off at a shop and tell them to fix it but ill be damned to pay 85 an hr for it to be something stupid.
Modified by godzilla34 at 8:22 PM 1/13/2009

[the converted]

Godzilla, it sounds like you might have a bad ignition cylinder. Put it to run and jump the two terminals on the starter and see if it will start up.

[godzilla34]

thanks ill try that tonight. ill give that a shot ill let you know once i try it*tried tonight and it cranked but still nothing. i pulled both harness's to check for bad grounds or a crossed wire somewhere. once i get that done ill check the ignition again to make sure it wasnt a fluke.bthe other porblem i found was that when i have the cas in and crank the motor with a breakerbar with the ignitor chip out the injectors wint fire. but with i have it out itll spit fuel as long as im turning the cas by hand
Modified by godzilla34 at 9:24 PM 1/15/2009