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maf
1-20 of 86 Results
  1. General E46 Forum
    I've been trying to source lean codes for awhile now, I've spent plenty of time researching how to analyze fuel trims to see what the problem is. I recently smoke tested the car and could not find any leaks, however I took the intake manifold off, replaced the ccv and all associated gaskets...
  2. General E46 Forum
    Hi! What is normal range of LTFT 1, LTFT 2 AND STFT 2. On ELM 327 with Torque pro- LTFT 1- -1,6%, LTFT2 - 0,8%, STFT2- 18,8% and MAF- 2,2 to 2,7g/s. This is when car is iddle, btw when i press gas pedal, rmps goes down, again when is in iddle. CAR:e46 320i 2001 automic 150ps, but in vehicle...
  3. General E46 Forum
    I've read up on some discussions and have noticed that when your maf is going bad it typically reads lower... but that's not the case with my MAF. I currently have a P0171 code and have noticed that my MAF reads above 31 g/s upon acceleration or while on the highway. At idle it reads 3.7 g/s...
  4. General E46 Forum
    Ok so I have 4 codes in my 2003 330i, P0174, P0171, P0420, and P0430. I’m pretty sure I need to replace my MAF because the live feed is under 3, my question is, should I be getting codes 430 and 420 because the vacuum leak or do I need to replace my sensors or cats?
  5. General E46 Forum
    Well, looks like the MAF is the likely candidate for my lean codes, what MAFs do you guys recommend (I don't want to buy OEM but I'm prepared to), and is the MAF the same for both the 2.5 and the 3.0? I'm thinking ahead to if I swap it this summer and I don't want to have to buy another MAF then
  6. General E46 Forum
    Hello. I have a problem with my e46 320ci. The car wont idle and it feels like it doesnt have any power at all. It also runs very rough when i press the throttle and the rpms jumps up and down. I diagnosed the car with an OBD scanner and it said it was a bad mass air flow sensor so i changed it...
  7. General E46 Forum
    So recently, Christmas Present, I bought myself a 4dr 323i. There are some issues with it and, would like some vets to teach a youngin a thing or two, about this model. First things first. Battery is completely dead and I can't run any codes to see what might be wrong. Second. Person I bought...
  8. General E46 Forum
    Swapped out OEM Maf for new OEM maf but car will not start with either MAF connected. Drives perfect with MAF disconnected. Ive been reading about ECU needing to adapt, resetting ECU .... Can anyone help further? - 2003 325 convertible
    maf
  9. General E46 Forum
    Hi guys, my car went lost all power on the way home from work last night, and after limping it home, the morning after saw it starting fine and then dying at idle. I’ve got fault codes: P0102 P1512 No dash lights, feels like a limp mode; complete loss of power, dies in idle, feels like a...
  10. General E46 Forum
    I bought an E46 320ci 2004 yesterday, drove home lovely and all day no issue. Then went to leave a friends and it wouldn't start. The MAF sensor was left dangling but plugged in by the prev owner and a cone filter was left on the intake pipe. The car originally turned on and then died after a...
  11. Driveline, Engine & DME Tuning
    Successfully got the DME into boot mode and upload the proper 512k file per the wiki and able to tune the calibration files just fine with ROMRAIDER. Trying to turn on the MAF hack using the community patch file in tuner pro and also in rom raider and load the 512k file back in using JM and boot...
  12. General E46 Forum
    Can anyone tell me the difference betweek a MAF with PN 5WK9 6471 and 5WK9 6472? Both are suppose to fit a 325i ... and look identical .. but My old one is 0471 ... Here's another example of the same thing Notice the top items Both fit 325i , but have different skus and no clue as to what's...
  13. General E46 Forum
    Is anyone able to share a functional pin out description, schematic, or wiring diagram for the Siemens 5 pin MAF ? just a pin out description would be helpful. (that would be the late 2003 -2004 3.25i) Thanks in advance..
  14. General E46 Forum
    Hey guys, I've had quite the headache around my car - a 2000 e46 323IA - the last few months. It threw me an engine light, and I've since tried to figure it out. IMPORTANT TO NOTICE The car drives fine, however it does idle abit rough sometimes, I don't believe this is tied into the problem I...
  15. General E46 Forum
    I want to share my unexpected experience. (I'm an experienced mechanic and electrical engineer), but this is my first BMW. We purchased a sweet 2004 3.25i, expecting to do a lot of work including replacing all the rubber, cvg, DISA etc. After we did that the car had what appeared to be a vacuum...
  16. Driveline, Engine & DME Tuning
    Hello all! I am just getting started into learning about ECU tuning. I watched a really good series on Youtube (video at bottom of post) that talked about the general process of tuning. Someday in the far far future I would love to turbo my car (325i) so I am trying to apply what I learned in...
  17. General E46 Forum
    Hello guys, i need some opinions what could have happend. My e46 330i was running fine, but it was leaking oil on drive-thru. So i decided to change oil filter housing gasket. After i've done that, when i start cold car for the first couple secounds rpm's jump up and down, when its a little warm...
    maf
  18. Miscellaneous BMW and E46 Parts
    Original, pulled from 2000 323i and tested working. PM if interested! https://photos.app.goo.gl/Jr8kW4D7W18TpzPw6
  19. General E46 Forum
    Hello all, long time lurker and first(ish) time poster! I drive a 2005 330xi. So this past Sunday I spent about 2 hours replacing the lower intake boot (massive crack in it) as I was getting some nasty lean conditions. While I was in there I took out the ICV and cleaned it really good with...
  20. General E46 Forum
    Hello all, First time poster and first time BMW owner. We have a 2002 325xi for my kids' daily driver. While leaving the neighborhood, the CEL came on along with the transmission cog light. Car stopped moving. After turning off the car and letting it sit for a while (as per the manual), the...
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