Ok read a few posts regards to hunting and not sure if thats what she's doing. I recently had an engine reconditioned but the problem was there before and after. It was doing it a lot when cold less so when warm. I can only describe it as like the engine was throbbing instead of just ticking over, they was no cutting out just the engine would go vroom, miss a second vroom etc.. On my smileys this would be knackered injectors/mistimed but these mk7 gadgets are a little more technical.
Short story is reading here and other lesser forums led me to a PCM software update and the ford specialist advised if this dosen't work may need valves replacing and quoted around £450
The pcm was done and the mechanic advised initially no change. he also said it was reading an injector misalignment code or something similar saying someone had attempted this alignment and failed. (I forget the exact terms but he said it needed specific diagnostics to correctly do this or a snap on device). He suggested I first get the injectors tested as it could be a simple injector failure. he said if they was fine then they just need setting up (again from reading hunting posts I gather this is commonly known as learning them to the engine?) He also said after a little driving it may settle down.
Now onto the current situation, I drove a few miles and was sat for ages at a junction and it was ticking over like never before, shock horror, its fixed? Nooo, it's worse then ever now
So i gets a call and pulls over, as im chatting the engine vibrates/shudders a little, sound a little rough. Blipped the throttle went away. Drove another mile home and parked up and listened, goes from smooth running at 850ish rpm, shudders and randomly shoots upto 2000rpm then back to idle as if I have pressed the throttle. Im not sure if the pcm update has caused this or if the garage has done something to gain the work? id like to think there an honest garage with great reviews over decades!
Sorry for the long rant. Ring any bells? what would you do next? Im planning on the injector test first? Not got bucket loads of dollar so want to get it right, albeit I paid a fair whack for it so also want it done right. Thanks in advance
https://youtu.be/uEYlVlD2hQ8