Volume123

Hey guys, just for a little recap, I haven't started my sc300 with a 1jz swap in a long time, almost over a year and a half about at this point as I have been gone and no one was able to start her for me. I have been trying all day to start it and just can't seem to get it. It completely turns over and actually starts running for a few seconds but then eventually loses rpm slowly and then dies even if I am hitting the throttle. Although it does have throttle response because it seems to act to the throttle sensitivity when I press the gas but like I said just then slowly bogs down. Is this probably my fuel pump? The only reason I don't think it is , is just because I didn't have any problems what so ever starting it before and I would assume a fuel pump would slowly give out making it harder and harder to start and then eventually completely not be able to start.

Also the only way it starts is when I spray the starting fluid in the filter. Could this possibly just be a fuel filter issue, maybe gotten clogged over the long period sitting?? The only negative thing I notice was the very first time I got it running it looked to smoke from the injector rail for a few puffs but has yet to do that again as I think that was just dust. What other options could I look at trying? Might it be an idle issue ? Also the one other thing I noticed was I had a completely empty tank so I filled it up with 5 gallons and the gauge barely moved on my gas meter, but it did move out of the "negative" and the gas light did turn off I would still assume it would have moved a little more than just above one notch. Any help would be greatly appreciated guys as I will have to be doing this on my own! So basically starting at the easiest solutions and going up in price and difficulty from there as a list would be assume if anyone may have that info as I have never had an issue with keeping a car running from not being started this long, as I would normally notice somrthjng going out and then replace it accordingly.

LoveSCs

iTrader: (2)

sounds like you have fresh gas in. I would put another few fresh gallons in though. Pull the plugs and check them to make sure they are not all fouled up. Most likely not a fuel pump. My last fuel pump that died on me was like an on/off switch. It could very well be a fuel filter. They are cheap and easy to replace, so do it. Just make sure you have a flare wrench, because a regular open ended wrench or crescent wrench will strip that fitting easily.

I can't imagine it being an idle problem. Especially if everything worked fine when you drove it last. Good luck and keep us posted

Volume123

I'm thinking fuel pump ecu as I can't hear the fuel pump running and my dad just told me he tried to change out some fuses when he attempted to start it a while ago. I put in 5 fresh gallons I would assume that would be more than enough. I'm thinking either bridge the fp b+ to bypass the fuel pump ecu or its just a simple fuse.

Does anyone know where all of the fuses are that would affect the fuel pump/ fuel pump ecu ? Is there a diagram somewhere as it doesn't state it under my covers like Normal.

Volume123

So I just realized my efi 30 amp fuse was blown, not the main efi fuse but the normal efi fuse. Would this be stopping it from running? I replaced it with another fuse and it instantly blew.

Volume123

if it makes any difference, when I tried to start the car the first time and it actually started with the starting fluid , a little smoke came from the injector rail and kind of smelled like a little electrical burn come to think about it, and I remember when I first tried to start it a while ago the same thing had happened, not sure if that possibly means the injector harness wires may be touching something they shouldn't be ? ... I dunno...not sure if this is irrelevant or not as it may have just been dirt collected from the engine bay over the long time sitting...

LoveSCs

iTrader: (2)

If that fuse is blowing, then I'd start there. Chances are that is, or is contributing to, the issue.

Here is link to 1jz wiring diagram:

http://wilbo666.pbworks.com/w/page/4...ngine%20Wiring

Volume123

I took the efi relay out and it doesn't blow the fuse but when I put it back in it does...what would or could this mean? And what do you mean by start there ? Start where lol