Vehicle & Technical > Discovery

disco2 v8 misfire

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daveyravey:
Sounds like one of the dodgy rotor arms again   :cry:  as this sounds quite like what mine was doing

Xtremeteam:

--- Quote from: "diamond dave" ---Sounds like one of the dodgy rotor arms again   :cry:  as this sounds quite like what mine was doing
--- End quote ---

doesent have rotor arms,is pure coul packs being a thor engine running Gems managment

remmy7:
Hi all,

Just to let you know on Sunday night I took a look in complete darkness under the bonnet and the left hand bank of leads were lit up like a christmas tree. Hoping to change them today and further hoping that this is going to cure the problem. If not Mike has pointed me in the direction of a local chap with good diagnostics. My only concern now is that the difference between the misfire on gas and petrol is so pronounced that I may have an additional problem with the gas but again I am hoping that this is due to the different ignition requirements. (its now next to impossible to drive on gas)
I will let you know how I get on once the leads have been changed as its a B***er of a job to get at the coils.

Cheers Remmy7.

remmy7:
Now it gets even more interesting (thats not my true thoughts)
True to form the wrong leads were delivered and I now await the correct ones. However the engine has been put on the diagnostics and was showing mis fires on 5 and 8 (familiar numbers) at Idle nothing was apparent so we drove the car with the diagnostics connected and this revealed a faullty knock sensor apparently ( I am not personally conversant with the test book thingy) As well as the leads a knock sensor is now also enroute. The only thoughts I have is wether or not the Knock sensor is merely a symptom or can a faulty knock sensor be the cause of the misfire in the first place. As I am really into territory completely unknown to me (bring back distributors and SU carbs that can be serviced using an old penny) any advice/info would be appreciated.

Cheers Remmy7

Range Rover Blues:
All I can say is suck it and see.  The sensor is faulty, so need swapping, as do the leads.  Then you need to have it diagnosed again :roll:

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