VX died Help....

[bcbike]

Help.....I was sitting at a stop when the engine shut completely off. It turned over but would not restart like it was not getting fuel. O towed it home and threw a fuel pressure tester on the fuel rail and with the key on I had zero pressure. I jumped the fuel pump relay and had then had 48 lbs of pressure. Its seems the fuel pump is working. I also noticed the fuel gauge reads below empty with no movement when I turn on the key, (i have 1/2 tank of fuel), also no check engine light with the key on. No fuel pressure when I attempt to start it. Fuel pressure when I jump the relay, no fuel gauge and no check engine light. Prior to this no problems, I'm stumped.

[Triathlete]

Bad relay?

[bcbike]

I thought that too so I replaced the relay with no luck.

[pbkid]

fuel gauge went out half way through a tank, but you didnt notice? i know it seems obvious, but its worth a try. I've heard of many gauges going out and people going through all kind of diagnostics before they throw a gallon of gas in it...

[bcbike]

I thought of that too and dumped in 5 gallons. It's strange, I have fuel and pressure when I jump the relay but no fuel pressure when I try to start it.

[yellowgizmo99]

someone had to bend the pins that the relay plugs into, might check into that.

[bcbike]

I tightened up the connections where the relay plugs in still no luck.

[VxSport]

The only thing I can think of is ground wire on or around the tank. How much rust is on your frame and tank. Might be worth pulling the float and sender unit from the rear side of tank and inspecting it and related wiring.
This only makes sense for the gauge, I don't think it would kill the engine, unless it reports a failure to the PCM on the float.
Still checking book though..... good luck

[bcbike]

Not much rust on the frame or tank but the ground thing is definitely worth checking out.
Thanks.

[pbkid]

It cranks but doesnt start? Have you checked the distributor?

Ground cable on the battery?

[Triathlete]

No distributor on a VX If battery ground was bad probably would not crank.

[bcbike]

I scoured the VX for every ground bolt on the body I could find polishing up the contact points. No luck.

[vt_maverick]

Time for a young priest and an old priest...

[Triathlete]

Do you have a voltage meter? You may not be getting voltage to the relay to activate it. You should have voltage at 2 pins...the one you jumped which powers the fuel pump and another that only has power when the ignition is on (this activates the relay allowing power to the pump). If there is no power there then you can backtrack. Have you checked fuses?

[bcbike]

Fuses are good. I'm pretty sure I'm not getting anything to the relay when the key is on I will throw a meter on to confirm.