Old Forester immobiliser issue

[Zead]

My 1999 Forester turbo just cranks and won't fire. I have sparks but no fuel. I strongly suspect the immobiliser has not disarmed and cut fuel supply/pump. I've had an 'auto electrician' out who told me the car is a 'classic' so basically beyond his diagnostics machines capability! But agrees im probably right. Needless to say he wasn't paid nor expected it to be fair.
Does anyone one reading this, know a good auto spark who knows Sigma alarms on Subaru that could come out to Cheam in Surrey and help me. It's an auto so I can't even tow it to a garage!
Thanks, Colin

[vxr2010]

does your alarm have a key pad ? if so the code will over ride the alarm , if you don’t have the code there is an over ride code i dont know it but it can be found , other things to think are fuel pump , try key in the ignition and turned on and then press the fob on the alarm

[Zead]

Yes have key pad but it was disabled when I had a new sigma unit. I did find overide code surfing net. It's like war and peace. Pretty sure it's immobiliser as the hazards flash once when I crank it suggest it's triggering immobiliser. I think I did try pressing fob button when ignition on but will try that again.
Cheers for response Colin

[MDMA .]

Quickly, just disconnect your battery for 30mins, then connect back up and try again.

[Stevie98]

Do consider it could be a failed fuel pump. I had the same symptoms as you on my 98 Impreza and the pump had failed suddenly.

The fuel pump relay is up under the dash/steering column...worth a check. If you take the rear seat bench out there is a connector for the fuel pump wiring on the off side (assuming the same for Forester/Impreza) My research suggested this can corrode, again a fairly easy check to make yourself.

[MDMA .]

Stevie98 said:

Do consider it could be a failed fuel pump. I had the same symptoms as you on my 98 Impreza and the pump had failed suddenly.

The fuel pump relay is up under the dash/steering column...worth a check. If you take the rear seat bench out there is a connector for the fuel pump wiring on the off side (assuming the same for Forester/Impreza) My research suggested this can corrode, again a fairly easy check to make yourself.

Had this with my FSTI. But random cut outs. Bought new reays as it had a new pump when re-mapped. Turned out it was the pump afterall. Replaced with a genuine uprated Walbro. Have spare relays in the garage if needed.

[Zead]

I'm reading lots about these alarms and it seems they don't cut fuel (auto electrician who hasn't shown up, suggested this on the phone) they just interrupt the starter circuit so don't crank at all. So the fuel pump or relay could well be at fault. I will run a feed direct to pump then work my way back. Connector looks fine. Too cold and dark to tear out interior to get to the pump now! Had to prise some interior off to find pump cover behind rear seat.
It doesn't explain the hazard flashing once but maybe it always did that and I never noticed. Thanks for pushing me to think again.

[Zead]

Many thanks to you guys for pushing me to think fuel pump. Hot wired pump and nothing. Pulled out pump and ran it on bench. It spat fuel out so I dropped it back in and got car to run for a short while but engine cut out trying to rev it. Pump then died. Got a Walbro delivered next day. Wired it up and put that in, problem solved.
Pistonheads I salute you, Z

[The Trooper 1815]

Before you pat yourself on the back do one more check.

Underneath the rear bench seat on the OS there is a large multi pin plug. The pins can corrode internally, with no visible indication and give an intermittent fault.

[Zead]

Cheers dude. I have already pulled this apart to hot wire the pump. It was in good nick but cleaned with contact cleaner just in case.