Bmw n57 air mass too low symptoms. I saw boost PSI should be 26 or 28.

Bmw n57 air mass too low symptoms For some reason i can't reset erg adaptations. I saw boost PSI should be 26 or 28. After replacing, I'm still seeing the same code on ISTA that the air mass is too low. Plus, I’d check the turbocharger and wastegate functionality. It's been 6 months I'm looking for this loss of power. Been getting the 'Drivetrain' malfunction message on my F10 530d iDrive and figured it likely to be EGR (exhaust-gas-recirculator) related, so plugged in a Snap-On Modis scanner and these are the codes I got, which are what I suspected to be honest. Check wiring harness between DME and intake pipe vacuum sensor. The O2 sensor reading also went low at this time. During the acceleration when EGR is closed then it looks like there is no difference in air mass. lambda act almost as wierd as that egr. Check connection of tank ventilation to intake system. changed air mass sensor, it act exactly as old one, i did reset it, not any better. I've got a problem. 60kgh and 42-44 expected at idle engine speed. Actually, the air mass reading spiked sharply downwards before climbing upward causing the jolt. Check throttle valve (contamination, carbon residue, icing). In this detailed guide, we will cover: An overview of the BMW N57 diesel engine; The major weak points and problem areas; Symptoms to watch out for; Maintenance tips to extend Check the EGR valve passages and cooler for blockages or carbon buildup that could slow down airflow. Also, look for leaks in the intake and EGR systems. but when engine warms both values drop to 0% and stays there. Actually, the air mass reading spiked sharply downwards before climbing upward causing the jolt. What could I check now? Thanks! EDIT : for info, with Torque boost PSI is 22. leaks. . When doing the air mass test in ISTA, the tests fail pretty early on. Fortunately, by understanding the most common BMW N57 engine problems, you can catch issues early and take action to avoid catastrophic engine failures down the road. N57b30 Air mass shows significantly different values from nominal values. Check intake system and crankcase for tightness. Check the exhaust manifold, gaskets, and downstream parts for any leaks. Could it be MAP sensor which is inaccurate? MAF is new (and between old and new values are the same). Replace intake pipe vacuum sensor. EGR valve, maf, map sensors replaced. The system is generally 15-20% under the expected value. should beseems logical except when difference is over 40% for over 4 sec -->ses. egr valve is still old, i ordered it today and will change it too. I am thinking out loud here, but with measured/calculated mass being too small means there must be intake of "volume" from an unmetered location, since the car is running fine and getting enough air not to get sluggish. Check wiring harness between electromotive throttle controller and DME. I think it's about the 3rd test that steps the rpms in 3 intervals. 5 max and hp (I don't know how is it calculate for this one) is 211. Hoping that in changing the MAF I will be happy once again. jsgzfzl voesi wbp jcvce zycrv bphsa jmva wogtvj obitjbn nwmuxr