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Nickiwi



Member Since: 03 Aug 2017
Location: Southampton
Posts: 3

United Kingdom 
5.0 S/C restricted performance, misfire on four cylinders.

Hi,

I moved into full fat ownership about a year ago, after 5 or 6 in Discoverys. Up until today it's been relatively pain free (other than the fuel, but you expect that).

I started the car this morning and though it sounded a little rough for 30secs or so, then it ran smoothly as I reversed off the drive. Drove to a meeting about 10 miles away, all was well until I pulled up when it suddenly got really rough and the restricted performance warning and light came on. After and hour or so, got back in the car, light had cleared (though it sounded a bit rough), then halfway home, the warning came on again. Car got me home at a very sedate pace.

I borrowed my neighbour's OBDii reader and got the following codes:

P0300 Random/multiple cylinder excess emissions detected Excess emissions detected on more than one cylinder
P0302 Cylinder 2 misfire detected Injector 2 excess emissions/catalyst damaging level of misfire
P0304 Cylinder 4 misfire detected Injector 4 excess emissions/catalyst damaging level of misfire
P0306 Cylinder 6 misfire detected Injector 6 excess emissions/catalyst damaging level of misfire
P0308 Cylinder 8 misfire detected Injector 8 excess emissions/catalyst damaging level of misfire
P0316 Multiple misfires in first 1000 revs.

Sounds a bit ominous to me. Have called my Indie, he has no instant diagnosis--which isn't surprising I guess, but can't look at the car until next Friday. Seems like I'll have a week of fretting and no fingernails left by then.

Any ideas? Thanks.

Post #480840 13th Jun 2018 5:54pm
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northernmonkeyjones



Member Since: 24 Mar 2012
Location: derby
Posts: 6403

United Kingdom 2012 Range Rover Vogue TDV8 Rimini Red

Something common to one bank by the look of it. Could be coil pack related? There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 TDV8 Vogue 2012 Firenze Red.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Post #480841 13th Jun 2018 6:04pm
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Nickiwi



Member Since: 03 Aug 2017
Location: Southampton
Posts: 3

United Kingdom 

That was my first thought (and also the neighbour, who's pretty useful with a spanner).
Indy wasn't so definitive. Hope it is, probably cheaper than some of the alternatives!

Post #480843 13th Jun 2018 6:10pm
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dingg1



Member Since: 29 Jun 2013
Location: NEWCASTLE
Posts: 448

2007 Range Rover Vogue SE 4.2 SC V8 Stornoway Grey

cam position sensor?

Post #480845 13th Jun 2018 6:16pm
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