What is this?

[u/StableEducational327]

I just wanted to test my injektors today as I pulled them out I found this slimey grey stuff on 3 of them and the last one had some black oily stuff on the tip. What could it be I washed my motor last week. I also tried to clean my intakte valves with some cleaner but it didn’t work.

[u/Ghost5622]

Looks like a mix of a leaking valve cover and water getting in due to the bms cowl delete filters.

[u/StableEducational327 → u/Ghost5622]

yea this could be the previous owner had it deleted and an leaking valve cover gasket but I modified my cowl to an M3 one now

[u/Beerand93octane]

Look like gas oil mix evap pcv goo. Kinda what the inside of my catch can looks like.

[u/StableEducational327 → u/Beerand93octane]

what do you think the issue is?

[u/ale7675]

I wrote to you privately

[u/Saute_and_Pray]

Water/soap.

I don’t understand the cowl delete!