Misfire - not plugs or coil packs?!

[WeeG]

Hi mark,
Mine still has similar symptoms to yours sporadically. I get very minor misses on random cylinders.
Seems very common place on these engines.
I changed all my coil packs. This has improved things so I now only get one or two every now and again.

I have/had a very similair thing. Changed coil packs and spark plugs and I was still getting maybe 10 or 11 missfires within a 10 minute window on idle. May I add there were no missfires at all while driving. Only when left for a good 5 mins on idle.
I teracleaned the car and the missfires are virtually away. When missfiring it was mostly on cylinder 1 but would do it occasionally on other cylinders. Leaving the car for 10/15 mins I occasionally still get a cheeky 1. But I notice these cars once tuned do seen to have a slightly lumpy idle. Logged blocks 015, 016

 

[Tfsi_Mike]

If only basic measuring missfire detection seems to be disabled when using the throttle.

Would show up on a scan or probably when logging though.

 

[Tfsi_Mike]

How much is terra clean by the way?

Less hassle than other methods of intake valve cleaning!

 

[WeeG]

It was £126 lasts an hour, and it has a twin adaptive cycle.

 

[Tfsi_Mike]

Would youn recommend it?

 

[WeeG]

Without a doubt I sat with the car during the hour process at 2k rpm with a latch on the pedal and it was audible in the difference of smoothness, the crap that came out the exhaust was unbelievable, timing pull reduced on logging also

 

[big eck]

I'm booked in on Wednesday to have the terra clean done. I hope and pray that it gets rid of the bad misfire I'm having just now.

 

[Lee M]

I'm presuming the terra clean sorts out the fuel system but doesn't touch the inlets themselves due to being direct injection?

 

[Tfsi_Mike]

I'm presuming the terra clean sorts out the fuel system but doesn't touch the inlets themselves due to being direct injection?

Hmm. I remember some method using a redex type cleaner that tfsi Jon added through his inlet manifold that helped sort the intake ports/ valves

Not sure about the terra clean though?

 

[Lee M]

Hmm. I remember some method using a redex type cleaner that tfsi Jon added through his inlet manifold that helped sort the intake ports/ valves

Not sure about the terra clean though?

You thinking of sea foam mike?