V70 D5 Misfire

[Will111]

Originally Posted by reggit

Sounds very similar to the symptoms mine had. It needed a new in tank fuel pump. Mine was only intermittently faulty, but got to the point where the car would go into limp at the slightest acceleration.
Using Vida, it would report a low fuel pressure code, but only whilst the engine was still running. It just wasn't there if the ignition was cycled, which is very strange.
Since changing the pump it's been transformed. Mine was on about 120k when it failed.

Did you do it yourself & what were the rough costs?

[Will111]

Originally Posted by MarvinMitt

Whenever possible, try to keep the fuel level above 20 litres because below it the intank pump will run constantly and thus wears out. Long process but if you haven't yet replaced the intank pump, you might get away with no replacement.

Cheers for this. Am I right in thinking the tank has to come out to replace the pump?

[reggit]

Originally Posted by Will111

Did you do it yourself & what were the rough costs?

I used a brand new pump, which was around £300 - you need to be dead sure it's the pump at this price! And yes I DIY'ed it. The hardest bit is getting the tank access holes undone.

I did try a used pump, but this was also 'iffy'.

Tank doesn't come out - there are 2 access holes under the back seat - you need to take the drivers side rear seat back out (disconnect main battery or you will trip the SRS warning) and you gain access. There's a good thread with pictures (if photobucket hasn't knobbled them) by 'Chopper Harris' which details the necessary steps.

[Will111]

So it seems I sorted it... A new air filter, cleaning of the MAF sensor & scraping out the carbon from the EGR pipes completely sorted the issue. Not sure which one of these sorted it, but glad it is fixed!