V60 D2 2014 P1264 'Cylinder 4 high to low side short'

[BigglesDad]

Hi Guys, newbie here.

My car just went into limp mode whilst navigating a roundabout. This has happened a couple of years before, and stopping the engine and restarting cleared it. Garage could find no issue. This time that didn't work, and I crawled home. Putting the OBD reader on it I got "P1264 Cylinder 4 high to low side short." Before I call in the professionals, any suggestions as to what this may be would be appreciated.

[Kev0607]

Faulty injector or injector wiring.

[BigglesDad]

Took a look under the bonnet, and no way was I going to be able to find the injectors - car engines have become much more inscrutable since electronic ignition. So, the garage have confirmed a failing injector. £570 to replace it... hey ho it's only money.

[Kev0607]

Originally Posted by BigglesDad

Took a look under the bonnet, and no way was I going to be able to find the injectors - car engines have become much more inscrutable since electronic ignition. So, the garage have confirmed a failing injector. £570 to replace it... hey ho it's only money.

Where the engine oil filler cap is, roughly 4 or 5 inches back from that towards the windscreen is where the injectors are. They're tucked out of sight.

Your car has a PSA engine developed by Peugeot and Citroen. Its used in lots of vehicles. Its not a Volvo engine though.

Unfortunately, injectors aren't cheap. Although £570 sounds like a complete rip off to me. I think they're taking the **** with that price. They must be putting a new one in. Why don't they get a good used/refurbished one and fit that... It'd save you a lot of money.

[BigglesDad]

For anyone finding this post in the future, here are the details from the garage bill (established independent garage, August 2024):

Parts (including VAT)

• Retaining clamp £31.68
• Flange Screw £5.40
• O-ring £8.88
• Washer £5.40
• Diesel Injector £296.35
  Total Parts: £347.71

Labour £227.70

Total £575.41

[gianmarko]

227 to change an injector sounds a lot but then again, maybe need to remove a lot of stuff (i doubt it)

i removed couple injectors from my 159 to replace the copper seal and even without the specific extractor never took me more than 1 hour and that included cleaning the injector, lapping the injector seat, etc

Originally Posted by BigglesDad

For anyone finding this post in the future, here are the details from the garage bill (established independent garage, August 2024):

Parts (including VAT)

• Retaining clamp £31.68
• Flange Screw £5.40
• O-ring £8.88
• Washer £5.40
• Diesel Injector £296.35
  Total Parts: £347.71

Labour £227.70

Total £575.41

[Kev0607]

Originally Posted by gianmarko

227 to change an injector sounds a lot but then again, maybe need to remove a lot of stuff (i doubt it)

i removed couple injectors from my 159 to replace the copper seal and even without the specific extractor never took me more than 1 hour and that included cleaning the injector, lapping the injector seat, etc

Its not a big job to change injectors on the PSA engines. I think that price is steep too, but I suppose its fixed now and back on the road.

[BigglesDad]

Corollary to the thread: Now the injector has been replaced, I've notice the engine feels a lot smoother. There was a slight flat spot on acceleration that, curiously I'm only really noticing now it's not there. Was like that for a long time, but the OBD hadn't picked it up. So the warning was there...