tjockhult

There is a distinct smeel of petrol also so one cylinder is not firing. Spark plugs were changed not that long ago. So ignition coil. Where can I get one for a decent price, Tegiwa wants £ 130... And I don't know if the ones from GSF and Euro are compatible.
Car is 2002 and the coil on the car are Denso with part # 099700-0430

engifineer

Did it set a misfire code for one cylinder? If so, swap that coil with another one, see if the misfire moves with the coil pack before just buying a coil pack. It could be an injector too. Could even be head or head gasket related but more likely a coil pack or an injector.

04/05 coil packs work on an AP1 and are half the price, even from Honda. Honda wont list them for an AP1 but plenty of us run them.

Coilpacks are known to die on the AP1s sometimes with all of them going. If it has significant mileage on it and you verify it is the coil pack, I honestly would just buy all 4.

Nottm_S2

You can get them from rockauto or used to be able to but the above tip probably supercedes that

engifineer

Per Denso, RockAuto is not an authorized dealer of theirs and someone on here got some Densos from them that look like knockoffs (bad labeling, etc) and that is who talked to Denso about them. I have NGKs for an 04/05 from Rockauto that work great along with some others on here, but then there is another thread right now where someone ordered the same NGK I did and they wont fit.