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After doing a bunch of work on my car (Timing chain, valve cover, walnut blasting) I started to get a p0442 small leak in evap code. I had rough idle, so messing with some of the hoses around the engine bay, I found that the hose running from the back left of the valve cover had cracked. Instead of replacing the hose, I installed catch cans. This hose leak was not the culprit, unfortunately. I also bought a new fuel cap, reset the code, and it eventually came back.
Occasionally, the light comes on my TACH that I need to tighten or replace my fuel cap. Unless my old fuel cap was faulty and the new one is too, I'm really unsure where to go from here.
After doing a bunch of work on my car (Timing chain, valve cover, walnut blasting) I started to get a p0442 small leak in evap code. I had rough idle, so messing with some of the hoses around the engine bay, I found that the hose running from the back left of the valve cover had cracked. Instead of replacing the hose, I installed catch cans. This hose leak was not the culprit, unfortunately. I also bought a new fuel cap, reset the code, and it eventually came back.
Occasionally, the light comes on my TACH that I need to tighten or replace my fuel cap. Unless my old fuel cap was faulty and the new one is too, I'm really unsure where to go from here.
Did you check that tube all the way to throttle body? I know you installed a OCC, did you get the proper fittings or did you hack the pipe?
Did you check that tube all the way to throttle body? I know you installed a OCC, did you get the proper fittings or did you hack the pipe?
Re-used the fittings from the original pipe with an equal sized fuel line hose. Got rid of the entire plastic factory tube but re-used the factory fittings.
The light was an issue prior to the OCC setup, not to say that the setup is not causing it but I would be surprised.
From all of the videos on YouTube of people seafoaming these engines the rough idle normal comes from them disconnecting that pipe while running. I blocked the damn thing off at valve cover and throttle body, I have an OCC on the other side. Might want to double check valve cover is torque down and those connections are plugged in completely and not leaking.
There's been so much debate on whether blocking that port off or not is good for the valves that I decided against it just to be safe and am running a two OCC setup. I will double check that hose tomorrow, though.
There's been so much debate on whether blocking that port off or not is good for the valves that I decided against it just to be safe and am running a two OCC setup. I will double check that hose tomorrow, though.
For the sake of space and lowering the potential of leaks, I may remove the PCV on the passenger side as you have.
For the time being though, I did a smoke test on that hose and there are no leaks. I believe I am getting a good seal on the gas cap too. About to spend 1750 to get a new clutch/flywheel installed so I'm really trying to avoid taking it to get diagnosed for an extra few hundred.
any idea where this unblocked port goes to or if it’s supposed to be open? This is the fuel vent device(I assume) under the intake. edit: looks like this is the purge vacuum solenoid.
Last edited by squeegebrb; May 29, 2020 at 12:23 PM.
It was a vacuum line somewhere, I wish I remembered as I no longer have the car. I had to have it tested by MINI. IIRC it was a vacuum line or the valve cover, I know that's not super helpful but I went through like 9 valve covers on the car over 5 years.
