no fuel on two cylinders

[Vancho]

Ok so i did a few things to my 1998 Gst, rebuilt the engine, started it, ran fine for about 50 miles, i changed out the fuel filter because the car has been sitting for over a year before i touched it. haven't poured more fuel in it yet, and after i changed out the fuel filter, it ran for about ten miles, i parked it. Then went to start it and it wouldn't start. I took out the sparks and two were soaked in fuel, and two were dry, i got a different set of injectors, same thing cylinder one and two were wet, 3 and 4 were dry, i put the injectors that were just spraying in the first two cylinders, to the last two, and they still don't spray, so i understand that i get fuel to the rail, i get fuel to the first two cylinders, but i don't understand why the 3rd and 4th cylinder don't spray, and when i drove it for the first 50 miles, i barley gave it gas, and the headers and exhaust part of the turbo were glowing red after about 10 miles of driving it, to which makes me think i run lean. full power wasn't there, it drove but just didn't seem right, if someone knows anything that i can do or check let me know please, thanks

 

[Vancho]

Also, I had the spark plugs hooked up to the wires, has someone turn the key, and they were all giving out spark, by this I understand the cas is giving info to the coil pack to give out spark right? Wich makes me think the cas is working properly.

 

[Lofty]

Yikes, I should have read a little bit more carefully before posting. I guess I missed a whole bunch of stuff.

You are most certainly correct LandSpeed, I should have also seen he had a 2g. Long night for me

I would try switching an ECU. I would pull the plug wires and atleast see if it is allowing all of the injectors to pulse.

Landspeed is absolutely correct in his information, I don't know what I was reading when posting what I did before.

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MD172146
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Might want to take a look at the injector resistor pack before an ECU, though.

 

[Vancho]

Do you think its safe to put a flashed ecu, of the same year dsm, just my gsx has bigger injectors, and im pushing over stock boost, I don't want to mess it up if I put the ecu in the gst, btw gsx is my running dsm, gst is the one I am having fuel problems with.

 

[Lofty]

Really hard to say what's safe. Like I said I would just see if the injectors pulse with the new ecu, without running the car.

I don't really want to say if it will be safe or not, because it's obviously not a good idea to put a flashed ECU into your car with stock injectors.

 

[Vancho]

Ok I will first check the resistor pack, even tho I don't know what it is, or how to check if its ok , the site you send me says the time has expired for this page, and isn't showing were the part is located, I think that's what was supposed to show right?

 

[2gmummy]

Is it no fuel or little fuel? Also maybe try cleaning the fuel rail itself maybe it got kind of clogged by where the injectors plug in since it has been sitting for a while?

 

[Vancho]

No fuel on cylinder 3 and 4, I took out the fuel rail a few times, clean like it should be, its not that. And Lofty, I googled what a resistor pack is, and tomorrow I will try changing it out with my other dsm, don't know how to check it, so I will just change it and post the results. Thanks

 

[Lofty]

Wise choice, do that before the ECU, hopefully it will fix it!

 

[Mjrsplat]

Also try cleaning your grounds. I've had cars in the past do screwy things with the injectors just because of grounding issues.

 

[awdjosh]

Guys when somebody needs help...ONE step at a time!

Swap out the transistor unit(resistor pack) right next to the coil pack. I've replaced many of these with these same symptoms on customer cars...they can go bad from heat, water(customers cleaning engine bay like idiots with a water hose), and time.

If that doesn't work which should took you all of but 15 minutes to R&R move onto the cam sensor.

 

[Vancho]

Guys when somebody needs help...ONE step at a time!

Swap out the transistor unit(resistor pack) right next to the coil pack. I've replaced many of these with these same symptoms on customer cars...they can go bad from heat, water(customers cleaning engine bay like idiots with a water hose), and time.

If that doesn't work which should took you all of but 15 minutes to R&R move onto the cam sensor.

One question, if its my cas, then i wont be getting spark right? but i took them all out and seen all or them sparking so it makes me think that its not my cas, i am working on the resistor pack right now, and will post soon with results

Ok so i changed out the resistor pack with my working dsm, my working dsm still starts up, my not starting dsm, still no fuel in cylinder in 3 and 4... moving on to the ecu...

 

[awdjosh]

Could be the FI relay, its right under the cd player to the right. Since its only a fuel problem.

 

[Vancho]

Took out the coil pack, and the power unit thing right next to the coil pack, put them both on the running dsm, and it still runs, so its not that, i will try swapping out the FI relay right now, not sure what it is but will google it

Is this what the FI relay is supposed to look like on a 98 gst? And can i swap it out with a 98 gsx? One is manual transmission one is auto, don't know if it matters and if its ok to do so.

 

[awdjosh]

Yea they.don't matter.

 

[Vancho]

Ok so its not the FI relay, switched them both out, and no improvement.. About the ecu, i believe the one in my gsx, manual transmission has a flashed ecu, bigger injectors and more boost, is it going to mess up the ecu if its put in the stock gst, auto transmission? Thanks

 

[Vancho]

OK i don't know what to do anymore, put a good ecu in there and same thing. Any one got any idea what it could be?? the thing is it ran, i didn't mess with it, parked it, went to start it and nothing...

 

[ricky05estevis]

hey wuts up buddy.... i have the exact same problem.. but my car has that problem in three injectors and mine is a gs. i built a noid light and checked the wires... and the light turned on all wires... so i have no idea what it is either....

 

[EclipseGS-TuRbO]

I think I know excattly what. You problem is. See these cars have a batch style multi port injection which means that the pcm is controlling two injectors so check out the drivers in the pcm

 

[Vancho]

What's a pcm? How can I check if or change it? And ricky I know, it sucks, I will post if and when I figure out the pcm thing.

I think I know excattly what. You problem is. See these cars have a batch style multi port injection which means that the pcm is controlling two injectors so check out the drivers in the pcm

Do you mean a ecu? Is it the same thing or no?

 

[EclipseGS-TuRbO]

Its the computer that controllers the injectors.

 

[Vancho]

Its the computer that controllers the injectors.

Is there any way you can send me a link or explain were this is located, i couldn't find it on Google. That would be awesome thanks.

 

[ricky05estevis]

Did you guys find something... when i was trying to fire it up i used starter spray.. and it would start but i had to keep on pressing on the gas, and my partner noticed some creamy almost caramel color liquid coming out of the engine... is that a bad sign....????

 

[Vancho]

No I am still stuck trying to figure this out, also not sure about the cream color liquid thing, were was it leaking out from exactly?

 

[oneslowevo]

any updates on this? I have a friend having the same issues with his 97 gsx

 

[Vancho]

I don't have any updates, but I am giving my car to a electrician in a few days and if he finds out the problem I will post what it was.