M42 hell continues

[sketchkid]

I'm have popping noise and no idle on 91 318is after mess under the intake and cable cover replacement. Videos below

https://vimeo.com/179910168

https://vimeo.com/179910257

https://vimeo.com/179910437

Sent from my iPhone using Tapatalk

[Gerta]

Boy that sounds like detonation.

[dnguyen1963]

It sounds like the firing order is not correct. Did you take out the spark plugs to see what they look like?

[sketchkid]

It sounds like the firing order is not correct. Did you take out the spark plugs to see what they look like?

They are brand new just put them in 2 months ago and hadn't driven it since I did but around the block


Sent from my iPhone using Tapatalk

[AndrewBird]

Sounds like a vacuum leak to me. There is a port on the underside of the throttle body boot that is not used. The stock on has a plug in it, new ones do not come with it. Make sure it is plugged up.

Check all your connections again and make sure there is nothing open to atmosphere.

[digger]

Looks like no hose clamps on the bellows so there could be a unmetered leak.

[Balleristic31]

In your second video it looks like the cylinder 3 and 4 wires might be switched. There should be enough extra wire on cylinder 4 to wrap around cylinder 3's wire.
Like this:

[AndrewBird]

No clamps on the intake boot will leak a TON. Definitely need those. Start there.

[Dj Buttchug]

huge VAC leak