Just as the title states, Im trying to figure out how i can wire a toggle switch in place of my pump relay so that i can turn it on and off manually from inside the car. I have changed the relay three times now with ones i have and ive blown all of them. I have a new pump to put in at some point also since the relays burning is probably from it drawing to much current but the switch is also a nice theft saftty thing.

If its burning up relays, a switch will burn up faster if used without a relay. Sounds like you have another issue to look into before you try another relay or switch. Maybe a bad ground on the relay, or the pump is going and drawing too much current, or the relays youve used arent rated for high enough current. If you want a switch for anti theft, put it inline of the relay on feed from the ECM.

My $.02

I doubt that a switch would be a good remedy. If the fuel pump relay is burning out, there is a problem somewhere else (especially, if it does not blow the fuse...)
You stated that you have a new fuel pump, but you have not installed it?
Swap out the pump. check the wires on the sending unit. I had a fuel pump issue and discovered that the wires in the tank were starting to fail.

But, to answer your question, there are many ways to do this.
If the car is still stock ECU, tap the ALDL wires and add a switch between the power wire (orange) and the Fuel Pump Enable (bypass) wires (pin G on the ALDL, I forget the wire color..)
the fuel pump relay has a power wire to the relay (orange with a black stripe), and to the pump (Tan with a white stripe). Tap the two wires and then add a switch.

Neither would be a fuel cut off for anti theft, but would allow you to control the fuel pump and bypass the relay.

I don't recommend this. The ECU and oil pressure switch automatically control the fuel pump. In the event of an accident, they turn off the fuel pump to stop feeding the engine.

-Dave

quote Originally posted by IFLYR22: The ECU and oil pressure switch automatically control the fuel pump. In the event of an accident, they turn off the fuel pump to stop feeding the engine. -Dave

The Oil pressure switch keeps the fuel pump running if the relay fails, it does not shut it off when pressure is lost.

Should i check the wires that go to the relay to see if they are grounded ok and everything. Also ive looked up how to do the fuel pump but about how long does it take to do? I'd be doing it in my driveway which is sort of a pain and id want it to be as painless as possible.

Doesnt take too long, a couple hours if you got jackstands and a small floor jack to hold the tank up. Also a big help if your tank is near empty. The worst part is getting the hoses off and back on.

Since the pump is still working if/when i do it, i plan on having the pump run all the gas into a bucket since as it sits right now im a little over a half tank. I do have a set of jackstands and a jack so getting it up and out shouldn't be to bad as long as its not rusted. How much does the tank weigh empty?

Not heavy at all, just long and akward, especially if there is fuel in it and it rushes to one end. The straps can be a little tricky, Undo those before you take off the "X" support under the tank. Plan on cussing at the hose clamps on the fuel/fill hoses.

quote Originally posted by Mike Gonzalez: The Oil pressure switch keeps the fuel pump running if the relay fails, it does not shut it off when pressure is lost.

Not sure if I understand.
So, if the engine is running, and you remove the fuel pump relay (remove the ECM control), the engine oil pressure sender keeps the fuel pump running. agreed.
So your response is that the fuel pump will still run if the engine is then shut off (or forced to off with the ECM control out of the equation)?

I think we may be arguing semantics at this point. The ECM controls the fuel pump via a relay, if this should fail (ECM control or relay), the oil pressure sender takes its place and performs an identical function (minus the prime pre-startup).

quote Originally posted by mtownfiero: Since the pump is still working if/when i do it, i plan on having the pump run all the gas into a bucket since as it sits right now im a little over a half tank. I do have a set of jackstands and a jack so getting it up and out shouldn't be to bad as long as its not rusted. How much does the tank weigh empty?

That is a good way to do it, use the pump to drain the tank.
empty tank is about 30-40 lbs maybe... not sure about weight, but it is pretty light. full tank is about 90-100lbs or so. remove the 61-65lbs of gas, and it is not very heavy.
Like Mike said, it isn't the weight, its the dimensions that make it annoying.

[This message has been edited by IFLYR22 (edited 06-19-2009).]

quote Originally posted by IFLYR22: I don't recommend this. The ECU and oil pressure switch automatically control the fuel pump. In the event of an accident, they turn off the fuel pump to stop feeding the engine. -Dave

LOL, In your post I thought it seemed you were saying that the oil switch would turn off the fuel pump if there were a engine failure, wasnt thinking accident (wreck)

The tank shouldnt be to bad since i can still drain it with the pump.

With the relay though if it were blown what you guys are saying is that the pump wouldn't prime before start up? My relay is showing as blown right now and my pump still primes with the key turned?

How is the relay showing as blown? Mine does not have any external indication of a failure. (save a melted case or some other obvious damage)

If the system is operating normally and the relay is bad, then the fuel pump would not run when the key is first turned to ON. In this case you would have to crank the engine until oil pressure built up enough to close the secondary circuit.

Well im getting a code 54 which ive read is low circuit voltage or a blown relay. Right after ive changed them out the car seems different but i get the code again quickly.

Have you checked fuel pump voltage? You have the 7730? I use Tunerpro RT and an ALDL cable to check mine. Even with a new battery and '88 alternator the voltage is showing ~13.00v.

I do have the 7730 but i dont have an aldl cable and my laptop is broken right now. Will a regular aldl cable work with the 7730 though and how would i check the voltage with out it?