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#1
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Plz Help me identify this unattached hose next to the Oil Stick and Disa Valve
it has 283000 miles on it with symptoms: Rough Idle/Stalling/Systeam Too Lean Fuel Bank 1&2 and misfire on all cylinders. While I have been chasing the source of the issue, Today I found out there is an un attached Hose !!! and I would like to ask you guys help me understand, is that supposed to be unattached ? why it is there? Plz plz help me. and here is a Video of it https://youtube.com/shorts/y-i8Ye_e0..._zxXwfncUOqyBz also larger IMG https://imgur.com/a/N7XRcT4 p.s (unrelated): - I changed my fuel filter yesterday and it was the ORIGINAL one form 2003, with 280K miles on it, and it was So Clogged and Dense Black Liquid was coming out of it. - I also changed all spark plugs and Ignition colis and air filter and Oil 2 weeks ago. |
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#2
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Air/vacuum leak:
*Intake boots between MAF and throttle valve *CCV system *Rubber plugs at the rear end of intake manifold *DISA valve That loose hose is front diff ventilation. That's how it should be.
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey E70 X5 40d -12 M-Sport Space grey |
#3
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My Fuel filter was REALLY really bad (original since 283 miles) could it be that the injectors are still dirty and if I keep driving it it will get better ? or the System Too Lean means vaccum leak? |
#4
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Thank you for clarifying that ! I am glad thats normal, I was surprised I had never paid attention to it, and usually in youtube videos it doesnt show up either. |
#5
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__________________
E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey E70 X5 40d -12 M-Sport Space grey |
#6
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Anyone knows any place in LA that would do it at an affordable price? |
#7
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What did the spark plugs look like? What brand are installed? Unplug the MAF sensor. How does it run? What is live data for MAF, O2 voltages for front and rear readings?
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
#8
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The spark plugs had oil on them (I overfilled the oil a bit before) here is the picture of them, https://imgur.com/a/2ZL84Xy I changed them with NGK spark plugs. - If I unplug the MAF sensor is that safe ? do you mean IDLE or should I drive it? is there a page I could see what is the Correct MAF and O2 Voltage Data ? (I I will go get them soon for you) ps, btw my car does have small oil leak and does occassionally Yell at me at the "STOP engine oil pressure" (but there is enough oil in there, I get 28 Thermal Sensor or OilLevel Defect Error code which I think means oil level sensor is bad ) |
#9
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I unplugged the MAF sensor and drove it and the Rough idle gone !!! and also I no longer get the System too lean Codes anymore !!! does that mean everything else is Good and I only need to fix the MAF sensor ? I also opened the MAF sensor to clean with the CRC spray and I noticed parts of it is Orange, is that normal color or is that rust? https://imgur.com/a/89QY7ml |
#10
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Wow! How old were those spark plugs? The ceramic burn through was really bad. Those are some of worst I've seen.
What is the MAF reading when it's plugged in? Reading in grams/sec. It should be close to engine size at operating temperature. The sensor could be bad. Is it an OEM old one? If it's very old, replace it or borrow one to try out. The orange glue looks like sensor "coating". I have not look at one closely but it should be normal unless it looks burned. When everything is working properly, front O2 sensor voltages should cycle up and down. The rear O2 sensor should read steady voltage. The rear voltage will change with idle RPMs but stay mostly flat at constant RPM. If rear O2 voltages mimics front O2 cycling, there's a problem.
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
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