BMW E46 Fanatics Forum banner

emissions

  1. Emissions OBD readiness failed (all 5) 330i ZHP

    General E46 Forum
    Hi all, just purchased a 2004 330i ZHP with 198k miles. No check engine light, but when I went to get my emissions test I failed due to all 5 OBD flags they check are showing not ready. I bought the car, then immediately drove 500 miles, so I figured the drive cycle would be good even if there...
  2. OBD readiness failed (all 5) 330i ZHP

    Driveline, Engine & DME Tuning
    Hi all, just purchased a 2004 330i ZHP with 198k miles. No check engine light, but when I went to get my emissions test I failed due to all 5 OBD flags they check are showing not ready. I bought the car, then immediately drove 500 miles, so I figured the drive cycle would be good even if there...
  3. O2 Sensor and Catalyst Sensor Not Ready

    General E46 Forum
    Hey everyone, so my 2002 325i can not pass emissions due to the O2 and catalyst sensors not being ready. When I first took my car for the test I had 4 modules not ready, but after doing the drive cycle I am down to 2. Also, my SES is on and two codes are being brought up (P0491 and P0492) but...
  4. Evap purge valve hose problem

    DIY: Do It Yourself
    I own a 2004 325xi BMW. I recently bought this car and the check engine light went on. I took it to autozone and the code said my evap purge valve was faulty. I bought the purge valve online and began to replace it. When i was removing the thinner hose from the back of the old purge valve i...
  5. WTB Smog-Pump 'pressure' hose (for '03-330i)

    Parting Out
    Looking to buy used "early millenial M54" secondary air-pump-to-valve hose (must be p/n 11727555681) for around $20 including shipping? That one appears specific to a narrow range of E46; 'has the oddball plastic ends, versus just "raw" hose clamps. 'Needs to be frugal, e.g. under half of...
  6. I think I'm missing something...

    General E46 Forum
    So the other day when I was replacing my upper and lower intake boots, I noticed a hose that looked like it was cut/broken/missing. I have no idea what it is or to what it's supposed to connect. I do have an CEL for emissions which may or may not be related. The line is located near the...
  7. Failed Smog - Oxygen Sensor Monitor Incomplete?

    General E46 Forum
    So I've been trying to pass smog for the past month. I recently got my 02 sensors changed in my 2003 330Ci. I took my car in for smog and they said my monitors were not complete. I hooked up my OBDII reader and found that my EVAP, oxygen sensor, and oxygen sensor heater monitor were all...
  8. CCV Delete Consensus?

    General E46 Forum
    Hey Everyone - if there's a "definitive" answer that everyone can agree on somewhere, by all means, please point me there. That being said, I've done a reasonable amount of searching on CCV deletes and have found a fair amount of opinion, and a number of DIY jobs, but no generally accepted best...
  9. Computer/Monitor Reset Procedure

    General E46 Forum
    This is the BMW E46's computer/monitor reset procedure. For those of who have the "service engine soon" light coming on frequently preventing you from getting the sticker, read this. If you can get your car to pass this test once without the light coming on, bring it right to the mechanic and...
  10. Quite the Story...Please Help! P2240 SES

    General E46 Forum
    Okay everyone, I have had my 2004 330ci since February and it has been fantastic on every level to drive. I bought it for a super low price and everything seems pristine but, the previous owner didn't give it the TLC a Bimmer deserves. Over the course of driving it a month I have had lean...
  11. Worried about passing Emissions

    General E46 Forum
    Hey, I looked around and couldn't find great advice for my situation. My 03' 330ci has an issue with the catalytic converters. Sometimes the CEL comes on, and I've had the codes read, efficiency banks 1 and 2 I believe. Other times, it stays off. It goes on and off every few weeks. I'm in...
  12. 2000 323i O2 sensor "Incomplete"

    General E46 Forum
    I've had my O2 Sensors reading "Incomplete" for quite some time and I doubt any of the previous owners changed them so I changed all four (Pre and Post Cat) and still have the Emissions Readiness Reading "Incomplete". I'm using Pro Torque with an ELM reader Is there a method to reset this the...
  13. 2004 BMW 325i M56 Intake ???

    DIY: Do It Yourself
    Ok so I'm looking to hear if anyone has any info. The M56 SULEV engine has a hydrocarbon filter built into the air box as a part of the emissions system. This to me says "restriction" removing it would be simple enough however would mean you can not replace it in the future if needed. The one in...
  14. FS: OEM 323/328 Exhaust Manifold w/ Cats

    Engine & Performance
    Sold
  15. Will I Pass Inspection? Emission Readiness Pic Attached

    General E46 Forum
    Was running lean. Did some fixes and cleared codes. Drove car about 60 miles or so (local and highway driving) to complete drive cycle (or attempted to). The emissions readiness says complete, but is this all that I need to get my car inspected for emission? Does this mean it'll pass? Thanks...
  16. P0411 Code Issue, Fix?

    General E46 Forum
    Service Engine light came on and it ended up being the code P0411. Looked it up and it is for Secondary Air Injection Pump? I know this is an issue for emissions but does it cause any other harm on the performance or the engine. Basically, is this something I need to get fixed right away or...
  17. E46 emmision variants and how to

    General E46 Forum
    *ROUGH DRAFT* 10.11.13 -- 0.9 10.11.13 -- 0.9.1 - added State Inspection OBDII Reports section *This write up (software versions, variant codes, etc) applies to MS43 M54B30 equipped E46's for now. Most of you know it is now possible to flash different exhaust emission standards. However, what...
  18. Delete

    Parting Out
    FOUND ONE Does anyone have a MAF that'll fit my car for sale? I drive an 02 330CI. If you've got one send me a PM with your price. I need one bad. Thank you!
  19. poor fuel ecomony - any ideas why?

    General E46 Forum
    Hi all, I'm reaching a dead end with trying to find out why my car seems to be using too much fuel...and hope someone on here can advise me on what could be causing it. Firstly my car is a UK model 1995 E36 2.0 with the M52 (6cyl) petrol engine, with vanos on the intake manifold. The engine...
  20. e46 m3 performance exhaust that meets Idaho's Emissions.

    Driveline, Engine & DME Tuning
    I'm looking to buy an exhaust from headers back, I'm worried about meeting the requirements for emissions though. I live in Idaho. I want as much horsepower for the price as I can get as well. I'd prefer a titanium one but I don't have my heart set yet. I like deep sounds without it sounding...
Top