Are there any other random fuses in our cars other than the ones that are in the box under the hood and in the drivers side kick panel?

 

Other than those two locations I do not know of any others unless there is an inline fuse on the DC power connector wiring. I've only just started tinkering with the car's electrical system and am no expert.

What are you looking for, specifically?

 

There shouldnt be...but like Kahn asked, what are you trying to track down?

 

There aren't any others that I know of. What are you looking to do?

 

My car will not fire ever since I blew the passenger side turn signal fuse and emergency flashed fuse. My front passenger side blinker isn't working (bulb is good) so I was testing the wiring harness for power and I must have arched the circuit bc I blew the fuses, but now my car won't start. Everything works, I checked every fuse in the car @ least 3 times and they are all ok. The car cranks, but will not fire, so I didn't know if there were any other random fuses located in the car somewhere

 

Have you tried testing your relay's?

 

How do I test my relays? And which relays should I test? I know that it is not the starter relay because I do have an extra one that I swapped in and it didn't do the trick.

 

When repairing the wiring harness in my wheel well, I used one gauge size larger wire than the original wires. Can that cause a problem?

 

EFI Main relay would be one to check. There are several that I would check just to be on the safe side. Can you hear your fuel pump prime? Have you done a 12v mod/FP ecu bypass?

When you repaired your fender harness, did you solder the new wires, or use butt-connectors? If you used connectors, go back and solder the wires, that way there is no guessing. How much larger in wire size did you go? It wouldnt keep the car from starting, but going from a smaller gauge wire, to a larger, then back to a smaller isnt a good idea...might want to go back and redo it.

 

I don't believe that I can hear the fuel pump prime and no I havnt done a 12v/FP sci bypass. Honestly I have basic knowledge and tools.

As far as the wiring goes, I used 18 gauge wire

 

It could possibly be the fuel pump ecu. I would start with this simply cause its easy and free to do, and will keep you from having to do it later on:

https://www.clublexus.com/forums/per...tures-faq.html

If that still does not work, you need to verify your pump is working. While you have the back seats out, turn on the car, dont try to start it, but just listen and see if you can hear the pump when you first turn the key. If not, find your EFI Main relay (fuse box under hood), simply place your finger on it and have someone turn the key to the ACC on, and see if you can feel or hear it click. If its working, next thing to do is replace the fuel pump itself.

There are other ways to check these things, but just going off whats always worked for me. As for the wires, that should be fine, but if you used butt-connectors, you really want to replace those with solder and some heat shrink tubing...you will thank me later.

 

Thank You for all your help, i have started soldering everything tonight and will do the rest tomorrow. Thank You again. Ill keep you posted on my out come.

 

Im a little paranoid to do the 12v mod. If I do the mod and the car still does not start, I will have to take it to a shop, so will the mod cause any diagnostic problems for the shop? Also, I cant feel the EFI relay click until after my wife stops trying to start the car. I dont feel a click in the ACC position or when she first tries to start the car, I only feel it when she stops trying to start the car.

 

The 12v mod wont throw any codes, and can easily be reversed. Try that and see how it goes. Were you able to hear your fuel pump at all?

 

I did the 12v mod and could hear the fuel pump kick on as soon as i put my key into the ignition (is that normal?/ good or bad). Car still wont start though, so what should I try next?
Back Ground of the car
2000 SC300 bone stock with 120,000 miles