Phonic wheel relearn
Dash warning lights (Auto start-stop, EOBD injection system failure, Generic failure) later versions also have Tyre pressure low & Hill assist unavailable I believe.
Hi all update from my previous posts.
Daughter purchased a 2011 Ford KA June 2019. (Fiat based) In car history cambelt changer 2016 at a Ford main dealer. Soon after purchase the car would start to have a major misfire if on motorway / duel carriage way when cruising at about 2750 / 3000 rpm, 60 / 65mph. Pull off road switch car off and back on it runs fine until the cruise down the major road but it is random when the next episode will be. I suspect the car was sold with known fault or was a town car as very little miles since cambelt changed.
I changed spark plugs and swapped coil pack and leads off another same year car I own but it still happened. Local garage code read P0300 (multiple misfire) P0302 cylinder 2 misfire detected and P0303 cylinder 3 misfire detected. Pointing to plugs, leads or coil pack, but they have already been changed.
Spending ages on various forums I found quite a number of people reporting the same/similar issues but the threads all went cold without conclusion. Hence my update.
Phonic wheel relearn.
I found a comment about phonic wheel relearn. Reading through and learning about it, crank and cam sensor may be slightly out of timing / synchronisation (not a tooth out just the difference from one belt to another). Various possible ways to correct rev engine to 4000, 5000 or 6000 rpm 3 times letting it idle between revs. Some reports said it has to be plugged into a computer (Ford IDS software) and revved to do the relearn. So without the software I thought nothing to loose picked the middle one 5000 rpm and it seems to have worked.
If you are having issues and don’t want to DIY I would suggest an independent Ford specialist but speak to them about phonic when relearn and ensure that they are aware of it / understand it.
So many people have shelled out loads of cash on parts injectors, coil packs, spark plugs, HT leads ECU’s etc and still not had a result
Thanks to Gary (ford owners club)
Peter (Haynes Publishings)