Urgent help!

[gazjacko]

Car broke down at the weekend ( just wouldn't start ). Called the AA out as I was stumped.
There is a spark and fuel to the fuel rail but the injectors aren't pulsing. The AA couldn't get it going so I've had to abandon it in darkest Cornwall (nearest Volvo dealer 50 miles - Exeter) unless it's a Massey ferguson / John Dere / Fordson I don't think the local spanner merchants wil be able to cope.
Advice/Ideas/Best guess at what's wrong? Crank sensor?
HELP!!!!

[fraz13]

Immobiliser or MAF sensor??

[spesh]

would still start if the maf was faulty

[volvotuning]

Car would still run with a faulty MAF. Probably immobiliser as fraz says. Any fault codes?

Adam.

[fraz13]

When ma MAF packet in it wouldnt run at all, unplugged it and it would run, plug it back in and it chucked it

[spesh]

Thats cause its a scottish MAF so it aint proper so thats why it didnt start!!!

[volvotuning]

Should still fire though, even with a faulty maf, ie the injectors should still pulse.

Adam.

[fraz13]

Damn mibees if it watched the sheep gettin rogered it would be better :doh: haha :haha:

[spesh]

Can we keep on topic fraz, please!!!!!!!!!!
hahahahahahahahahahahahahahahahahahah
Dont know how the standard volvo imobiliers works, aftermarket ones normally cut the fuel pump suppy, but i guess the volvo one is a bit more high tec

[fraz13]

Sorry mate, ye obviously got a KB at the weekend lol hahahahahahaha

The wee "ring" that goes round the ignition barrel sometimes goes...

[gazjacko]

No codes shown on OBDII. car running perfectly prior to stopping. Tried to start first couple of turns ( fired then died) but then nothing not a sausage !

[Andrew]

No codes shown on OBDII. car running perfectly prior to stopping. Tried to start first couple of turns ( fired then died) but then nothing not a sausage !

Does the battery check out ok ? I had something similar happen to my V70 a day after I had it - thought it may be a duff battery but it worked fine after charging and has never happened again...

Of course it could be I left something on and disconnecting the battery for a few hours cleared whatever the problem was...

[gezR]

I had the exact same symptoms as you when my 850 broke down a few weeks ago. It turned out to be the fuel pump was at fault even though the AA man who attended mine said exactly the same as you've posted ie that there was fuel at the injector rail but no power at the injectors themselves. Hope this is some use to you.

Gez

EDIT-It even did the firing runing a few seconds and then dying trick you've also mentioned. Deffinatley worth checking the fuel pump.

[gazjacko]

Cheers for the input fellas, going to collect this weekend and will post the diagnosis when I find out.
PS -Irony - Brake upgrade bits arrived yesterday!!!!

[gazjacko]

Diagnosis - Fuel pump faulty and burning out relay. therefore fuel geting through but not at high enough pressure

[GuyD5]

Diagnosis - Fuel pump faulty and burning out relay. therefore fuel geting through but not at high enough pressure

Spot on Gez :)