Nick_Cat

iTrader: (5)

MY00, Turbo 2000, VF28, Ecutek and supporting mods inc Walbro 255L (all done 2 yrs ago).

On Monday I was driving along, slowed down as I entered a 30 zone and the car lost power but didn't die. I coasted to the side of the road, dropped down gear and then the power came in and the car took off. At my destination I checked the engine bay to find the intercooler hose loose - tightened it up and hoped this was the culprit.

Yesterday, same symptoms but this time the engine died and I haven't been able to start it since. Turns over but won't fire up. A local garage recovered me and they did basic checks and said fuel pump relay was fine and power was getting to the fuel pump but it doesn't prime. Have also connected the old fuel pump just to see if this would prime but it didn't.

I would get the car transported to Subaru 4 You but Len is unavailable for 2 wks. Any suggestions? Thanks.

johned

Maybe the crank sensor or wiring.

Nick_Cat

iTrader: (5)

Thanks, wiring 'looks' fine. I suppose the only way to check the sensor is by using a replacement?

1509joe

iTrader: (2)

Check connector under the rear seat. Check for power at fuel pump when ignition initially switched on.

Nick_Cat

iTrader: (5)

Garage checked power at the fuel pump connector with ignition on, not start. Said it was fine.

1509joe

iTrader: (2)

It only comes on for a couple of seconds when the ignition is cycled unless it starts. You need to be sitting with the multimeter when first turned on. Plus as said before check the connector under the seat.

ossett2k2

iTrader: (9)

100% sure it's a genuine walbro? Fair few dodgy copies around

Nick_Cat

iTrader: (5)

I bought it new from a reputable dealer, so should be.

Nick_Cat

iTrader: (5)

Sorry, excuse my ignorance - do you mean the connector that attaches to the top of the fuel cradle or is there something else under the seat?

1509joe

iTrader: (2)

Should still have power at the pump.

Hustlersalvage

You can check a crank sensor using a multimeter if you have one. If your near West Yorkshire iv got one as just had loads of problems with mine but didn’t need sensor.
Have you checked your earths?
Mine was doing the same yesterday and it was down to too much air getting in inlet

Nick_Cat

iTrader: (5)

Thanks, but other end of the country to you. Have checked earths and all the pipework.

Hustlersalvage

It might be worth pulling plugs out and turning it over with fuel pump off mate. Mines just had 5 days of changing everything to find out it was flooded.

Other then that unplug a lead of your coil pack and turn it over see if it’s sparking.

There’s only 2 sensors on entire engine that will stop it starting that’s cam and crank sensor cranks in middle above pulls and heald in with a 10mm bolt cams on battery side and a grey plug again 10 mm.
you can test both if you have a multimeter,

the crank one can be a *** to get out so don’t be shocked if it comes out in pieces.

Mine ran for about 5 mins with intercooler off I turned it off went to start it again and wouldn’t start. Followed by a week of having inlet off and every sensor nearly changed. Turned out to be flooded.

Its wirth checking as it’s a 10 minute job and costs nothing and I really wish I’d have done that first! Lol

ossett2k2

iTrader: (9)

Thought op had power to the pump?

1509joe

iTrader: (2)

Connector under the seat on drivers side rear.

1509joe

iTrader: (2)

Double post

1509joe

iTrader: (2)

He stated this too just exploring all possibility's

.Yesterday, same symptoms but this time the engine died and I haven't been able to start it since. Turns over but won't fire up. A local garage recovered me and they did basic checks and said fuel pump relay was fine and power was getting to the fuel pump but it doesn't prime. Have also connected the old fuel pump just to see if this would prime but it didn't.

Flat4x4-again

iTrader: (1)

Two months ago my 00MY cut out on me when driving, I restarted on the key and it ran for 20 minutes. It needed RAC recovery after that.

It turned out to be the sigma alarm control board which links to the fuel pump / relay. The good Subaru garage I used resoldered the connections and its been fine ever since.

I thought it was 1) Fuel pump; 2) Fuel pump relay; 3) Crank sensor.

David Wilkinson 555

I have had similar issues with my 96 wrx.
checked all connections and even soldered bad connections just in case. I found that if I took the individual connectors out of the plastic connector to the fuel pump and fitted them individually it worked.
I am currently on the hunt for a new plastic connector but in the meantime it works fine now.
hope that helps

Nick_Cat

iTrader: (5)

Thanks folks, plenty to keep me busy this w/e!

Nick_Cat

iTrader: (5)

I've started investigating, not good in this heat!

Checked the connector to the fuel pump and the one under the seat and those to the crank and cam sensor. Juggled the connectors and wires while wife tried to start car in case it was a dodgy connection/wire - made no difference.

Pulled a spark plug to check for flooded engine: looked 'normal' not coated in fuel and no smell of petrol when it came out. NB: it is a single coil pack conversion.

While the pack is out how can I check for a spark?

Thanks

1509joe

iTrader: (2)

Put a spare plug in the coilpack and earth the plug turn over and watch.

Hustlersalvage

Not saying it’s the case mate but with mine turned out to be a screwed 0 ring on injector so had to take out all four to get the cylinder that was flooded!
drove a fair few mile to buy a set of injectors turns out to be wrong ones 😡

dont think it it will be case with yours though as mine locked up from cylinder being full of fuel!

if you put a plug in a coil pack make sure your earth the side of plug to get a spark.
Know what you mean about working on thwm
in this weather!

Nick_Cat

iTrader: (5)

Thanks, yes earthed the plug with a jump lead. Got a spark.

Also swapped the ecu for a spare I had but that didn't help.

One thing I did notice was when trying to start it for the first time this morning it made several 'poof' sounds, for want of a better onomatopoeia description, as if it was trying.

Hustlersalvage

Have you tried taking fuel line off aim it into a bottle turn it on make sure it’s priming?

Nick_Cat

iTrader: (5)

Not yet, but the pump doesn’t make the usual priming sound that it normally does when in the ignition on position.

Hustlersalvage

It’s what you need to do mate really

Flat4x4-again

iTrader: (1)

Same as mine wasn't (above). Coincidental age of yours and my car a factor in the Sigma board drying out ?

Nick_Cat

iTrader: (5)

I'm wondering whether that's the fault. Where can I find the alarm board and would any deterioration of the circuits be obvious?

Flat4x4-again

iTrader: (1)

I just did a thorough search on here for Sigma alarm issues (classic). In my case the car had been recovered home as a non-starter and I checked the relays etc. I then spoke to Maple Leaf Subaru who said they had done a few classics in the past with similar issues so I paid a local guy to recover to them rather than mess about as I had already reached my basic DIY limits...

If you dig up my thread 'Waiting for the RAC', Gambit and others posted some very helpful info.