Pullin3RD

Now I have been digging searching similar post/threads but couldn't seem to find a answer am looking for...hopefully you guys can be a great help!

So am driving down the highway, cruising.. then all of a sudden..Felt like the governor kicked in or something...(I don't drive like that)...car falls on its butt... all powered cut off..speedometer blank...needles all plummet...
No response, I merge over rolling to the shoulder...
so I get my car towed (thank you AAA).. My brother looks at it, notices blown fuse(s) Which I was guessing.. (not like I have spare fuses w/ me)

He traces all of my wiring, and notices the ignition wire getting so hot so soon!
Where you can smell it and see it smoke a bit under the steering/dash
We couldn't figure out why it is doing this, what's causing it to short out like that????? We don't really know the next approach, considering he looked through all my wiring.. is there something we are overlooking missing/skipping???
Any ground issues? etc.
Please help. What to do?

Thank you so much!

DennisMik

iTrader: (2)

If the wire for your starter is getting hot and smoking, the starter solenoid is drawing too much current or there is something that has cut into the wire. When you turn the key to start, does the engine crank?

Pullin3RD

Am sorry it was the ignition wire not starter, I edited my post above too.
No car doesn't crank over.

Nopike

iTrader: (2)

Which fuses does it blow? That will help determine what is shorted.

DennisMik

iTrader: (2)

At the starter, disconnect the thin wire that goes to it. This wire is for the solenoid and comes from the ignition switch. Then turn the key and see if the wire still gets hot. If the wire under the dash does not get hot, you have a starter problem.

Pullin3RD

Ignition fuse blown, we looked over the wire diagram
it is possibly a bad injector or one of the injectors is grounded with the manifold?

Pullin3RD

Thanks for the replies

DennisMik

iTrader: (2)

It's certainly possible for a fuel injector to short out, but the ignition fuse also supplies power to other things besides the fuel injectors. You can disconnect the injector wires and test the ohms. I think they should be about 12 ohms.

The coil packs also get their power through the same fuse. These have a higher likelyhood of going bad than the injectors. There is also a condensor (capacitor) on the 12 volt line to the coil packs that could short.

Were any other fuses blown? The other thing is that when you said that the ignition wire got hot and smoked, I assumed a certain wire which may have been wrong. Could you describe this wire a little more?

Pullin3RD

We checked the front injectors one by one seeing if they were getting the wire hot.
We did not check the under/manifold injectors, would have to break/remove the manifold.
There is 3 of them right?? so we are thinking a injector is bad under the manifold, or a faulty, bad injector harness???? possibly a wire is pinched???

The wire that is getting hot, is black/red
thanks a lot.

cashoit

OP,

This is electrical. U are not gonna have fun with this one. U are gonna need the FSM and start reviewing the circuit diagrams. There are a few fuses and relays to replace.

Pullin3RD

Ahhh, right..okay.. Hmmms..
Thanks!

cashoit

my first though was the ignition switch may be sticking.

asand1

iTrader: (1)

Did you recently change anything in the car? Stereo install, engine mods/repair, lighting, anything? Which side of the ign switch is it, to engine or supply to switch? How about the colors on the wire.

DennisMik

iTrader: (2)

The black/red wire I am thinking of is the one under the dash going to the ignition switch. Am I correct on this?

If I am, this wire feeds a lot of other circuits. Most of those other circuits have their own fuses but a few don't.

Please clarify this wire some more - like under the dash, under the hood, approximate area, what it plugs into (if known). There is more than one black/red wire.

Pullin3RD

engine

Pullin3RD

diagram & all of that info you mentioned previous, we've done before I posted thread..
under the dash I believe from the ignition switch, black/red runs around everything like you mentioned it "feeds other circuits too.."


going to check the injectors again and make sure they read 12 ohms like you mentioned before(which we haven't done)
and we are going to have to take off the manifold and check under there (the other injectors) underneath, that I mentioned.. and hope this is the culprit.. I hope we fix the problem and I hope it doesn't keep on happening etc.... thanks man.

Pullin3RD

okay.
Update: My car has been sitting in the garage, we did not get a chance to remove the manifold and double check the other injectors, my bro had to swap cars so he could fix something on his car. Anyways he was curious if the car would turn over and surely with a fuse swap and turn of the key it cranked over no problems.. kind of scary..
I dont want to be rolling down the road and same thing happens..
So it turned over but am sketchy on straying to far from home.
am on a swap mentality..
thank you guys for you're help and any other suggestions you guys may have please share I appreciate it.

mightyMax95

iTrader: (5)

fuse number 17?

Pullin3RD

Ignition fuse, if that is fuse number 17, Ill have to double check

DennisMik

iTrader: (2)

Ignition fuse is not # 17, ignition fuse is letter H under the hood. Not sure why mightyMax95 suggested that one.

mightyMax95

iTrader: (5)

because there is an engine control fuse (in the underdash fuse panel) that when blown exhibits the same symptoms as the OP described. we still have not found the culprit in the wiring for my car.

Pullin3RD

^^^^ Dayumnnnn...

Dennis you're the man

But.... another update... I wanted to get out and take a test drive considering that the car was/is running... So...instead of me taking a cruise lap around my neighborhood..(which I should have done) the car felt torque as normal..so I put faith into my nissan... pulled out on the main road..went a 1/8 of mile if that... and car died..same ****... so we are definitely going to take that dumb manifold off and check those injectors... Ai Yi Yiii!

Pullin3RD

Okay so we got to the injectors under the manifold and they're fine.
Now I must put it all back together...and see where this all goes from here.

Pullin3RD

Update: max is rolling, as I was putting baxk together the manifold etc. On the passenger side near o2 sensor, wireharness etc. There is a bracket right on the manifold, it was bent toward the side. It was actually bent over and rubbed onto the wireharness. raw. We did a few tests, put the car on, watched the fuse go..
Wrapped up the raw wire exposed. Took that bent bracket off. New fuse. And am rolling.
Thanks for everyones help on here.
This thread can be deleted.