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bigdaddy786
28-09-2022, 05:12 AM
I've been hunting this misfire for a while but something baffles. This is on a R36

Factory plugs which are NGK ILZKR8A Laser Iridium Spark Plug car misfire on cold till its warmed up

Ive had Bosch Double Iridium Spark Plug 0242140528 YR6TII330T fitted hardly any misfire on cold.

Why is it misfiring on the NGK but not on the Bosch?

So far new coil packs, air mass meter
MIG
28-09-2022, 10:40 AM
I know carbon build up on the 3.6L can cause miss fires at cold, it might something to do with that, have you ever had it wallnut blasted?

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bigdaddy786
28-09-2022, 06:23 PM
I know carbon build up on the 3.6L can cause miss fires at cold, it might something to do with that, have you ever had it wallnut blasted?

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Not as yet but in search in finding a company to do it properly. my concern is why it misfires on the ngk plugs not the bosch?
nermal
28-09-2022, 07:53 PM
Not as yet but in search in finding a company to do it properly. my concern is why it misfires on the ngk plugs not the bosch?

Could incorrect gaps be to blame?
Lucas_R
28-09-2022, 08:59 PM
Where abouts in the UK are you? I follow these guys on Youtube and Facebook (very knowledgeable guys) and they do carbon cleaning as well as a whole host of other repairs on VW/Audi vehicles.

These guys are in Dudley, just outside of Birmingham.

VAGTechnic Facebook page (https://www.facebook.com/vagtechnicltd)

VAG Technic | Contact us | Dudley, West Midlands (https://vagtechnic.uk/pages/contact)
bigdaddy786
29-09-2022, 12:10 AM
Could incorrect gaps be to blame?

No Ive tried different gap on them still the same.
bigdaddy786
29-09-2022, 12:56 AM
Where abouts in the UK are you? I follow these guys on Youtube and Facebook (very knowledgeable guys) and they do carbon cleaning as well as a whole host of other repairs on VW/Audi vehicles.

These guys are in Dudley, just outside of Birmingham.

VAGTechnic Facebook page (https://www.facebook.com/vagtechnicltd)

VAG Technic | Contact us | Dudley, West Midlands (https://vagtechnic.uk/pages/contact)

Im from the west midlands, Yeh ive heard of them, the do carbon cleaning but not wallnut blasting i think, but I one of the reviews on google put me off taking to them.
Lucas_R
29-09-2022, 10:36 AM
Im from the west midlands, Yeh ive heard of them, the do carbon cleaning but not wallnut blasting i think, but I one of the reviews on google put me off taking to them.

Might be worth a drive up north to Darkside Developments in Barnsley.