wtf is wrong with my m42

[bmwm42]

I don't have spark plug wires as I have a cop kit.....ill be double checking fuel delivery tomorrow

[roguetoaster]

Duh me, I read that and forgot. Also the coil numbers may be incorrect, as those are for the M42 coils.

[Dj Buttchug]

Duh me, I read that and forgot. Also the coil numbers may be incorrect, as those are for the M42 coils.

i doubt this is the issue considering the car ran fine before. Banking on possible crank sensor shitting out. Weird things happen when they start malfunctioning. Cam sensor too.

[Cosmic Serpent]

my car had a similar issue except a lot worse, I replaced all the vac lines and icv to no avail. So got it smoke tested, turns out there was an small intermittent leak in the top intake manifold gasket. Not sure if this helps, but i would suggest checking the gasket out as it seems be due to the cold weather.
good luck.

[bmwm42]

Coils are in correct order vac leak test on the way

[bmwm42]

Coils aren't the issue........vac reading at idle is 17.5.......takes a huge dump with any accel......ideas

[roguetoaster]

Well, vac leak, either something is expanding, one of your plastic connectors is cracked, the plug in the intake boot is coming out/intake boot is cracked in an odd place, intake manifold gasket is dying, or the FPR hose has come off.

[bmwm42]

Issue solved pics to come

[bmwm42]

[roguetoaster]

So, was timing off, or was the entire crank pulley just coming off, causing a bad crank position sensor read? If the latter I suppose proper torquing is important.

Glad you have found the problem!

[Dj Buttchug]

oh shit lol

[bmwm42]

Lol yup good thing its a quick easy fix

[Ryann]

Haha Fil! I called it.

[bmwm42]

Thats why i love you ryann

[Ryann]

<3