Codes 2882 & 2883

[Youdey]

I have got a misfire on cylinders 4 & 5 it's only an amber warning light. I changed the spark plugs less than 1k miles ago and I also swapped the ignition coils around to see if the misfiring cylinder would change but the same cylinder is still misfiring. I have also got the following fault codes that claim to be linked according to Carly:
000020 - Instrument Cluster - Ignition (KL.15) on but ignition (KL.R) off / Air bag
0000DA - Auxiliary Heating - Vorkatsonde 1 signal swing / CDKCHDEV - CAN timeout HDEV / Signal KVA2 / CAN module warning level reached / FS backrest head: blocking front / Internal index 233
00A468 - Central Info Display - Cable break to MASK or NAVI
00E5C7 - Central Info Display - Communication: IBUS transmit error

I am going away in the car in the next few days for a while & I'm very busy for the rest of the week so I don't have much time to research into it or to fix it. Any suggestions as to what it could be & if I'd be fine to carry on driving with the fault codes on.

[Youdey]

I believe the warning light comes on after long-ish motorway use as it popped up a couple of months ago when I changed the spark plugs & thought I had sorted the issue. I don't ever recall noticing the car misfiring however twice the car has kangarooed when in first gear but the warning light hasn't come up when it happened

[bigwinn]

Those codes are not linked in my opinion

If the coils are ok then I’d be looking at the sparks as the root cause- what’s the spark gap like? Worth looking at if it’s too wide

Stuart

[Rockhopper]

Agreed. I don’t believe those codes have anything to do with your problem.

[Big Andra]

I'd swap the plugs in 4&5 into another cylinder to rule them out too.

[Youdey]

I will try if I get any time but doubt it as it was the same cylinders that were misfiring before I changed the spark plugs. The chances of exactly the same cylinders misfiring after spark plug change are very slim if it was down to the gap.
I might be stupid but the ones that I got weren't adjustable as they were double-tipped either that or there's a different way to adjust them???

[Big Andra]

Have you done a compression test? Had a similar scenario recently with my daughters audi A1. Misfiring on cylinder 1. Swapped coils, plugs to no avail. Compression test showed 75psi on cylinder 1 and 150 psi on the rest. Head off and renewed all the valves, timing chain, guides and cylinder 1 injector. Was still a bit lumpy on idle so it's going back in today for a new piston in cylinder 1 as the audi specialist says the only other thing it can be now is the second ring on the piston has seized.

[Youdey]

No I haven't tried a compression test. I'll see if I can get something sorted before I go away

[AveZ4coop]

Just a thought:
Is it definately the same cylinders misfiring after you change the coil and plug positions? This sounds like a plug/coil issue. I had the same issue and it brought up no codes at all. I replaced all coils and plugs and issue went away. Other than that I would agree that a compression test is the wat to go.

[Youdey]

Just a thought:
Is it definately the same cylinders misfiring after you change the coil and plug positions? This sounds like a plug/coil issue. I had the same issue and it brought up no codes at all. I replaced all coils and plugs and issue went away. Other than that I would agree that a compression test is the wat to go.

I'm able to see what ones are misfiring and they are the same ones that were misfiring before I replaced the spark plugs & swapped the coils around. I haven't been able to get anything sorted yet so I'll have to have a proper look at it once I'm back. I'm praying that it'll be fine when I'm away as I'm relying on it

[bigwinn]

Have to add

Every poor performance or misfire I’ve had the root cause has been coils

[Youdey]

Update: I cleared the error codes before setting off but after about 40 miles it came back, however, I think that Carly was showing me past reports about the misfire of the cylinders. After double-checking & running a new health scan it returned the codes 2882 & 2883. Usually, it is caused by a tear in the Air Intake Manifold Boot but I have replaced mine a couple of months ago. I have double-checked that it is still properly attached & appears to be however, I couldn't get a proper look as it got too dark. I have tried to have a look online at what it could be but nothing other than the Air Intake Manifold Boot seems to be the answer. Could it be that a sensor is gone or is it likely another part has perished?