False knock....where to look?

What about the knock sensors themselves? I wonder if they are interchangeable... You could swap them around to see if it changes anything.

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Seems unlikely they would fail from my conversations with some knowledgeable people. They would also be a complete nightmare to get to.

Was any of this occurring before you switched tuners?

So....Reviving this thread. What have you Found JDG? If anything at all!

What did you end up figuring out?

Hey man I’m having same
Exact issue, new injectors and e/s280 knock cyl1/junkyard motor injectors and hpfp35 brand new + vibra engine mount.

did u ever find out what issue was or was it false knock?

Who is your tuner?

TyphoonFist,

1. Dude thank you for replying
2. I appreciate your contributions to this thread and for communicating everything u have in these posts it’s been helpful to acknowledge the severity of my knock situation.

On’ 3rd fiesta I love them so much I keep going back. IMO nothing is better. I love this car and will always own one. I respect that you appreciate them also.

My single sealed bosh 30% inj dumped and took motor w it. Installed junkyard motor purchased from Justin Price at twin tips performance, had shop install it along w new clutch job (all oem), 50% XDI, injectors +hpfp35 also XDI, vibra technics street mounts (all 3), shop did timing job as well and lots of gasket refresh on junkyard motor. Idle is okay but w AC on idle up n down like it wants to die but AC off butter smooth no bad motor noises that I can here. Was pulling timing like a mother fu*** after motor install and was slow as balls. I disconnected and reconnected all sensors I could see and timing was much better but tuner said knock cylinder 1 of this level is concerning and very generously has given me a list of what to look for basically everything u checked for too. I do have four point subframe suave brace up front I’m gonna check that n make sure its not loose either, shop did passenger front cv axle shaft install though as well maybe it’s cv related idk, shop was extremely unfamiliar w this car and had a multitude of handling deficits and issues along the way they did a poor job on the motor install I found lots of little issues but fixed myself (got the car back last week and it was pulling timing immediately on first drive, I should have done motor myself. Turbo itself wasn’t messed with so wastegate preload etc should all be perfect. Car runs good just has visible knock on logs.

Just wanted to give u a ton of
Back-scene info.

happy Friday eve