Mis-firing Cylinder 3

[d6n]

As above, engine management light came, sounded like a Scooby and a lot of blue smoke and stunk of fuel in the car.

The fault has come up on cylinder 3, the garage have swapped the lead from 3 to 4 and the light hasn’t come back on and the car is driving fine.

Any ideas

Car is 02 reg ph2 172.

 

[jimbo666]

Coil pack or lead.

 

[Jonny1*2]

As above, engine management light came, sounded like a Scooby and a lot of blue smoke and stunk of fuel in the car.

The fault has come up on cylinder 3, the garage have swapped the lead from 3 to 4 and the light hasn’t come back on and the car is driving fine.

Any ideas

Car is 02 reg ph2 172.

How does that work? They removed lead from 3 and put it on 4 and it was fine, but what did they put on 3 as this would have flagged an issue. Unless i'm reading that wrong

 

[Gavin J]

I had an intermittant misfire on mine and it turned out to be a dodgy injector...(changed the coil pack and leads prior to the injector)

 

[d6n]

How does that work? They removed lead from 3 and put it on 4 and it was fine, but what did they put on 3 as this would have flagged an issue. Unless i'm reading that wrong

Apologies, I'm totally wrong! He swapped the injector for cylinder 3 with the injector in for cylinder 4 and the problem went away. I just fetched it back and it's fine!

 

[Chip-mk1]

Nothing has been fixed there TBH, wouuld expect the problem to come back.

 

[kiares07]

Yes i want to know more about this. Ive got misfire on cylinder 3 still after fitting new magnecor red leads. New correct plugs and new coil pack. So would it be correct to.assume dodgy injector

 

[Jonny1*2]

Or wiring. Swap injectors round and see if the fault follows

 

[d6n]

Nothing has been fixed there TBH, wouuld expect the problem to come back.

You may be right, but the garage did say any more lights / issues then bring it back and the diagnosis will be FOC, suppose they could have fobbed my off with new coil pack, leads or injector. Trial and error i suppose!