My 91 RS won't start?

[log1call]

To test the ecu and trouble codes you could pull the MAf or TPS plugs then give the motor a crank and you should get a code.

Sounds like you have found the problem though.

Before you buy a new pump it would be a good idea to check it is the pump and not the relay or wiring.

If you can hear the pump it wont be the wiring or relay. If the pump is running then it could be buggered, or, you may have been lower on gas that you thought(these fuel gauges are notorious), and the twenty dollars may not have been enough to cover the pump again. You could try putting more fuel in there.

[RS.YES]

Hey guys I'm no electrician but I have a multimeter and was wondering if you guys could give me steps to check the voltage at fuel pump or the wiring? I am a complete a blonde when it comes to checking the electrics for power, all I know is the battery.

[log1call]

Hmm...

If you are not too good on electrics it would be better to use a test light to check for power.

Depending on the model you either have power there all the time and it gets earthed via the relay, or, the relay turns the power on and it earths after the pump. You have to be carefull not to be reading the tiny current running down to the fuel gauge though, which the multimeter will show as twelve volts even though ther is not enough power to run a motor. A bad connection can also allow twelve volts through but it won't be enough to run the pump. A teast light needs a bit of current so it will be dim if you are looking at the fuel gauge wires with it.

Probably the easiest and surest test for you is to pull the pump and try it on a battery or, disconnect it from the car's wiring and run twelve volts to it with jumper leads. If you are using the jumpers you MUST know which wires are pump and which are gauge or you will burn out the gauge and possibly burn the car as well(when the petrol ignites).

[RS.YES]

So if I take the fuel pump out and disconnect all the wiring and have the pump on it's own. Where do I put the jumper leads on the pump? Would anyone have a diagram to do this?

[log1call]

If you take it out you will see.

[log1call]

have a look here.... http://www.clubsub.org.nz/forum/index.php/topic,292.0.html

[Guest boostin]

Um, just be wary of sparks, fuel fumes etc. They don't mix so well....

[RS.YES]

What fuel pump would you guys suggest for me to use? Would one off trademe help or should I go for a genuine fuel pump from Subaru or recognized parts traders(bnt, partsmaster, ect...)?

[Guest boostin]

Walbro. Half the price of genuine with almost 4 times the flow.

GFB NZ keep them.

[RS.YES]

Hey guys, just found it was the fuel pump. Had to wait this to get it cause payroll lady stuffed my money up and I got under-payed. Crappy stock one just died out that time it happened. Got the walbro pump, put it in then turned on an could hear it pumpin' but stink thing have to put a new hose for the fuel delivery cos it split probably cos I used my massive as pliers to get the thing off and put little splits n 'em(nice one!! :-\).

But thanks guys for all your help ;D ;D, hopefully it can start with the starter's brushes(i think) are worn out, or should I get a 2nd hand starter to be safe ????