Try plug it off and run the hose pre maf. Tap a hole somewhere in the intake, get a check valve inline so it only pulls vac from pcv. Make sure you keep the catch tank routing so the blow by you breath in is clean or your MAF gets destroyed. if the tune wasn't setup right for the extra airflow from pcv. It will go rich and over compensate. Or you could go into ECU settings and have the mixture run leaner manually. You can do it either using xentry or that 431 scanner you have. It should be under special functions > setup/settings > manual settings > fuel mixture conditions.
@@armschoolc32 the way that breather works it wouldn’t work with a check valve and if I did it pre MAF it would ruin the sensor with oil vapor. At this point the mixtures are not far off but I just need to put miles on it to verify LTFT before adjusting anything else. Thanks for the input 🤙🏼
@@ANDERZENAMG I get that vapor thing thats why I said if you keep the catch tank and run everything through catch tank then check valve into pre maf, it would just work as factory M111K where everything is pre maf. You know you could also still run a valve even if it's vent to atmosphere. since pistons work both ways, it will act as a pump down stroke and compress air within crank case out, a check valve will maintain a light vacuum in the crank ince air will not go back in through pcv port after being pumped out (instead of being sucked out by intake vacuum)
@@armschoolc32 factory these things run pcv post MAF behind throttle body butterfly. That’s how my catch can is run currently, I have tried tying the large port in but it create idle issues and rev hang. I’ve tried also running a check valve breather on my ML55 in past and it shot oil out of the dipstick on even just a quick drive.
Any upcoming junkyard runs coming soon ? 👍🏼
I want to! Been forever... waiting for a good few cars to pop up to make it worthwhile and then definitely will ;)
Try plug it off and run the hose pre maf. Tap a hole somewhere in the intake, get a check valve inline so it only pulls vac from pcv.
Make sure you keep the catch tank routing so the blow by you breath in is clean or your MAF gets destroyed.
if the tune wasn't setup right for the extra airflow from pcv. It will go rich and over compensate.
Or you could go into ECU settings and have the mixture run leaner manually. You can do it either using xentry or that 431 scanner you have. It should be under special functions > setup/settings > manual settings > fuel mixture conditions.
@@armschoolc32 the way that breather works it wouldn’t work with a check valve and if I did it pre MAF it would ruin the sensor with oil vapor.
At this point the mixtures are not far off but I just need to put miles on it to verify LTFT before adjusting anything else. Thanks for the input 🤙🏼
@@ANDERZENAMG I get that vapor thing thats why I said if you keep the catch tank and run everything through catch tank then check valve into pre maf, it would just work as factory M111K where everything is pre maf.
You know you could also still run a valve even if it's vent to atmosphere. since pistons work both ways, it will act as a pump down stroke and compress air within crank case out, a check valve will maintain a light vacuum in the crank ince air will not go back in through pcv port after being pumped out (instead of being sucked out by intake vacuum)
@@armschoolc32 factory these things run pcv post MAF behind throttle body butterfly. That’s how my catch can is run currently, I have tried tying the large port in but it create idle issues and rev hang.
I’ve tried also running a check valve breather on my ML55 in past and it shot oil out of the dipstick on even just a quick drive.
Hey man, off topic but do you recall which video covered you installing the Fel-Pro blue valve cover gaskets?
@@brauhaus213 great question… they’ve been in a couple, clk and both C55’s… let me try to look
ruclips.net/video/a_lRmeVB61Q/видео.html
@@ANDERZENAMG Thanks so much man! 👍
so was we right ?