Fuse blowing and car won't start

[colm_gti]

Leaving college earlier the car cut out right outside the gate, and refused to start with the key. The engine is turning over fine but just won't fire up.

Couldn't hear the fuel pump priming with the ignition on, so checked the fuses. The 30A fuse in the engine bay had blown, so I replaced it with a spare I had in the car. Turned the ignition on but as soon as I turned the key to start the engine, the fuse blew again.

Has anyone else experienced this? Any suggestions as to where I start?

 

[Cro]

You most likely have water or something in somewhere mate. Either that or a cross in the loom, I traced mine back to the rear spoiler connection but that was because it blew everytime I pressed the brake pedal.

Just gonna be a long and painful looking session

 

[colm_gti]

You most likely have water or something in somewhere mate. Either that or a cross in the loom, I traced mine back to the rear spoiler connection but that was because it blew everytime I pressed the brake pedal.

Just gonna be a long and painful looking session

I don't see how water could be causing it though?

I mean like I've driven the car in torrential rain not a bother, but today was an absolute scorcher of a day, not a drip of rain to be seen?

Drove to college fine, parked in the carpark all day, went to drive home and kept blowing a fuse?

 

[Cro]

Loose connection shorting off something then.

I was pulling my hair out trying to find it, was fine for years, found it and dried/wd40'd and hasnt happened since!

 

[crazycup_racer]

Can you here the fuel pump prime just before the fuse pop's? I have seen a pump that has blocked up and kept popping the fuse, we later found it had been filled with contaminated eco type s**t and gunged the pump up!!

 

[colm_gti]

Turns out a wire going to the lambda sensor was rubbing against the chassis, had rubbed thru the protective coating, causing the wire to hit the chassis and short the circuit. Bit of electrical tape, a cable tie and the car is as good as new

Thanks all for the help