Need input on why my b18 won't start

ohisofly · Sep 21, 2014

So I just got done trying to start my turbo ls

It was thrown together quick and this wire that the arrow points to wasn't hooked up

When I went to start the car the cluster lights came on, and then when I went to start it I heard the fuel pump come on but then there was just a "pop" noise and all cluster lights went out. I try to turn the key again and nothing happened at all.

Once we realized that this wire wasn't hooked up we tried it with it connected, but still nothing. So I figured we popped a fuse or something, checked all the fuses and everything is good. Everything in that black fusebox in the above pic is getting power so I'm thinking the ecu might be toast, but I didn't really look into that much since it was 1am when this happened. I'll be trying to diagnose this tomorrow so any input would be great.

Dr_Drache · Sep 21, 2014

if you heard a pop, it's under the dash. check all fuses under there.

jlicrx · Sep 21, 2014

the wire that the arrow is pointing to is the alternator wire

ohisofly · Sep 21, 2014

All fuses are fine I checked them last night and I guess that wouldn't cause any problems then if it's that alternator, right?

Dr_Drache · Sep 21, 2014

ohisofly said:
All fuses are fine I checked them last night and I guess that wouldn't cause any problems then if it's that alternator, right?

by the way you mentioned it, it seemed you only checked the under-hood fuses. not the under dash.
being the alt wire, that's how the alt charges the battery/supplies power.
i'd check the main relay, or the ignition wires.

KevinEF7 · Sep 21, 2014

Sounds like a fuse the way you described it, "pop" lights go out, then nothing works when cranking..

bigboi · Sep 21, 2014

is it possible that with the wire not being securely attached it could have arched and sent a surge of power to the Main Relay... im not sure the main relay would cause the lights to go out tho.... i would definitely check all the fuses again...

NovaVTEC · Sep 21, 2014

No. A fuse or wire blew.

ohisofly · Sep 22, 2014

Dr_Drache said:
ohisofly said:

All fuses are fine I checked them last night and I guess that wouldn't cause any problems then if it's that alternator, right?

Click to expand...

by the way you mentioned it, it seemed you only checked the under-hood fuses. not the under dash.
being the alt wire, that's how the alt charges the battery/supplies power.
i'd check the main relay, or the ignition wires.

I agree looking back at that, sorry I was extremely tired :lol:

So I'm not really sure what the problem was/is. I got in the car this morning, turned the key and the cluster lit right up. I tried to start it and nothing (dead battery). Then I tried to cycle the key again and the same thing happened where no lights came on.

I figured I would just run and get a new battery to see if that would help; after putting the new battery in it hasn't happened yet. After hooking everything up I actually got the car to run for a few seconds but I need to mess with the tune to get it to idle.

I still have no idea what happened though, and I feel like this could be an issue in the future if I don't figure it out.

Need input on why my b18 won't start

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