Starting problem

[Kracka]

Have you checked all the injector seals and the O-ring going into the fuel rail?

[Halon]

No, but I will! Now when I'm checking them, am I just looking for an obvious rip, or whatelse should I be looking at exactly? That TNT place has all sorts of O-Rings, so I suppose I will just replace the O-Ring going into the fuel rail, as well as the one at the pump since he should have them, and they probably cost next to nothing.

But Peter, you're saying it is normal for my pressure to be dropping like that? So if that's the case, then apparently that pressure drop off is normal?

Again, is my fuel pump supposed to turn on and build pressure when I turn the key just to the ON possition? should it be building up the pressure right then and there before I begin cranking it over?

[Kracka]

Yes, when you turn your key to the "ON" position, it charges your fuel system and get it up to preasure (the pump only runs for a split second). When you begin cranking the engine the pump will of course be on too. Once the car is running, does it stay running? If I were you I'd replace the O-ring going into the fuel rail and the O-ring on each injector top (might as well do the donuts going into the head too). If that TNT place of yours doesn't have any, the Mitsu dealership will.

[Halon]

Yes it stays on. Once it starts, it idles just fine, and I can go drive it around too. Sometimes when I am attempting to start it, it will barely start, be all lumpidy and die within a couple seconds. But when I turned on the pump with the logger, and then turned the key when it was pressurized, it started just beautifully.

And when I turn my key, the system does not pressurize. The guage does not move at all.

So if this is the case, what would be stopping this from taking place. The ECU? The FP Relay?

And I will replace those rings as well. Thanks playa!

[A//// Guy]

I had a similar issue with my old car and it was the ECU, the car would start up great sometime sn and then die others, I thought you replaced your caps though.

I would think most of the pressure is supposed to go down and release the gas back to the tank, but I didnt think it would depressurize down to 0. Although when Ive worked on fuel systems and taken the injector out of the rail it doesnt spray fuel everywhere, so there must be 0 pressure or close to it, otherwise when you take the rail off or pull an injector out it would spray everywhere.

[Halon]

The ECU I got off Jet in the summer. They said it was rebuilt by LightningGSX. I'm not sure how long ago though. I am still going to replace those O-Rings tonight, but then if that doesn't do a thing, I will remove the ECU and see if I can get it checked out by someone.

[Halon]

OK well I posted up this question on tuners last night too, in hopes that some of the more intelligent ones there could give me any useful info.
http://www.dsmtuners.com/forums/showthread.php?t=213288
Steve on there said that 1g's do NOT pressurize the system when you turn to the ON position, only when you turn it to the STARTposition. So it sounds like that is exactly how my car is working. I am still going to replace those rings though, and I think my next step will be the ECU.

[Halon]

OK well i changed out the fuel pump and fuel rail feed O Rings. They changed nothing.

BUT...

Something did change. Before I even tried to start the car, I turned on the logger, and I couldn't get a read on anything. I also could not test anything, like when I'd try and turn on the fuel pump to build up pressure, nothing would happen. It's like the logger would not communicate with the ECU. Hmmm.... Then a little later after I cranked it over a few times and nothing happened, the solonoids on the firewall (FP, EGR...) started clicking like crazy.

I'm back to thinking I have an issue with my ECU. I am boxing it up and shipping it to STEVE off DSMTuners. I PMed LighteningGSX, but heard nothing back. So I will end up shipping it to Steve.

[Halon]

Well just thought I'd update this. I received an email back from Steve today. Apparently the ECU had a list of problems, and he will be repairing them and send the ECU out on Monday. That's kind of a relief I suppose, because hopefully those are what was causing my problems. I'll post up once I get it back. Hopefully she'll start right up!!

[A//// Guy]

Nice, I had a feeling that sounded exactly like my old symptoms.