Ned's 91 GSX

[ned032002]

Got kind of an important question. I found out why my turbo timer stopped working, the wire was pinched between the ecu and mounting bracket. So it was cut damn near all the way through. My concern is with the wires being as fine as they are, is it ok to just reconnect them? I tried soldering them but I guess I'm really bad at soldering and I was having difficulty getting the solder to stick to the wire. So I just got a little bit of solder on them then I used shrink wrap and then taped them all together. There's this tin foil like material that surrounds the wire that I just kind of rewrapped the foil and called her good. Would everyone agree that this is safe or is there something else I should do?

[SilvrEclipse]

It should be fine as long as the wires have a good connection. Does the TT work now?

[ned032002]

I don't have the battery hooked up right now but I plan to hook it up to make sure the fuel pump works so I can test that too.

Edit: hooked up the battery, turbo timer works but the fuel pump doesn't come on. I tested the wires and the wire I cut and tapped into are showing no current using the multimeter. I lost the cover to the fuse box cover so I can't see which fuse controls the pump. Or how it could have blown I have no idea. Confused here, any suggestions.

[ned032002]

Recharged the battery cause it was only showing 8.5v so charged it up and retested wires. Again...no voltage through that wire. I even tried further up the wire and again nothing. Can't find where the problem is. I even reconnected the 2 back together and still nothing. I don't see what the problem could be.

If I connect the 12V lead wire to the black and white wire, that will at least test the pump but won't solve the problem. My question there is, will this harm the pump if I do that just to test it?

Is there a fuse or relay that I should check? I did the vacuum removal so does that pump work on vacuum in anyway that may have been effected? I left only the lines that the vfaq said to leave. This is a stupid problem but a serious one at that.

[SilvrEclipse]

It wont hurt the pump to connect it directly to the battery. You only want the pump to run when the motor is running tho. You could run a power wire to the pump and put a relay in there. Just like you are rewiring it if you cant figure it out. It is probably a fuse.

[ned032002]

What could have caused the fuse to blow? I know that's a stupid question but I didn't short anything out to my knowledge to have blown anything. Isn't the pump suppose to come on whenever you first turn on the key? I guess I can pull the fuel line off the fuel rail and see if fuel was pumped to that point. I don't know what else to do here.
I guess the starting question is: Is the pump suppose to come on everytime when you first turn on the key?

[SilvrEclipse]

I think it depends on the car. I know all 2gs prime when you turn the key but I have heard that some 1gens did not prime. There should be no reason not to have power at the pump if the fuse is not blown. Unless the ECU is killing power to it for some reason. I would check every fuse under the hood and under the dash. You need to see if it gets power when cranking tho. If it doesn't then you may want to check to see if the injectors have power or not. On the 420a ECU the power for the fuel pump, injectors, coil is all tied together so if one doesn't have power neither does anything else.

[ned032002]

When I get out of work tonight, I will check the fuses. Hopefully it's something easy like that. I can't crank the car yet, so that will have to wait a little longer.

[david-b]

Isn't there a relay too for the fuel pump? Could that maybe be blown?

[ned032002]

I couldn't find a relay that said "fuel pump" so didn't get any further there. I looked through the chiltons manual, looked through the wiring diagrams and got nowhere.

[vanilla gorilla]

I know on 2g's the fuel pump relay is under the dash right beside the ECU, on the passenger side.

[ned032002]

When I get home I'll have more time to mess with it.

[ned032002]

Well none of the fuses are popped. Someone suggested that I just turn the car over a couple turns to see if the pump turns on or not. I don't have any oil or coolant in the engine so it's probably not a good idea to do this right? The radiator hoses aren't installed either. Suggestions?

[vanilla gorilla]

It wont hurt to run the car for a short period of time with no coolant, but I wouldn't turn it over without any oil in it.

[david-b]

Oil is needed for sure. And since there's no oil, make sure you crank it with the coil pack unplugged a couple times to prime the motor before you actually try starting it.