Hey so I'm having a real strange problem with my car. The 20 amp fuse in the engine bay that is for the direct port fuel injection system keeps blowing. I have no clue why, it started happening after I installed motor mounts and sway bars so this seems completely random. I just made the connection today that it only happens when I experience wheel hop. I rarely get wheel hop anymore because of my motor mounts but if im on rough pavement and it does happen, the fuse blows. again this is so weird. Any one have advice or solutions? I've had to replace the fuse 3 times already.

 

gota be a bad ground in the line.........check for a wire hat got pinched and is grounding out.......it is there I am sure.

 

but why would it only happen during quick acceleration + wheel hop...


and I just dont even know where to begin looking for the problematic wire...

 

because when you accelerate quickly or have wheel hop it might bounce the wire around just right so it pops the fuse.

 

how bad of an idea would it be to throw in a 25 amp fuse as opposed to the 20 amp thats supposed to be there?

some one suggested that the scanguage i have plugged in might be overloading the circuit and that i should try a larger fuse, i just dont want to do any real damage though so I'm not sure...

 

check any wire that might have been melting to the exhaust, I had that happen with my truck and it sucked. If that is not it look for wires that might get peenced if the motor rocks, check the motor mounts and tight areas.

 

putting a larger fuse is not the right idea, it might burn up your wires instead of blowing your fuse. double check your work area to make sure that all wires are clear from heat, pinching and check that the sheathing is still intact.

look at a wire diagram of the car and see where that wire runs to give you a better idea on where to look.

 

alright well tomorrow, or Sunday Im gonna go digging around to see if i can find the problem... if not, its probably going to the dealership


SATown, do you know where i can find such a diagram?

 

the other thing I forgot to mention is that the front mount actually isnt in yet. Energy Suspensions forgot to put in the box. So right now only the rear and side mounts are in. I have the front mount now and I'll probably throw it in over the weekend while I'm looking for the problem wire.

Just thought I should mention that incase it could somehow be related to the problem

 

wire diagrams
https://www.scionlife.com/forums/viewtopic.php?t=138455

 

thanks a lot for the diagrams man.

just to update, today I spent a fair amount of time poking around the engine bay and under the car inspecting my previous work areas and tracing wires. I havent been able to find any issue so I'm still confused as to why I'm having this problem

while i was under there, I threw in the front mount (so now I have all 3 in). Funny thing is I actually cant get the fuse to blow. I'll have to find some rough broken up pavement but I tried 3 different types of pavement with varying inclines and cannot get the wheels to hop haha. That front mount is so sweet :-)

 

... anyone else have input....?