E46 rough idle no codes. right after May 8, 2010 · 4) Get a T20 Torx screw and remove the 2 screws supporting the MAF. Mar 16, 2023 · Other causes of a rough idling engine include the following: Faulty fuel pump; Faulty EGR valve; Bad PCV valve; Carburetor issues; Vacuum leak; How to Fix Rough Idle. Swapped coils between 1 and 2 and ran it. Now it starts great, no water loss. Jul 22, 2020 · Hi Guys! So I recently got my E46 318i (2000 built) and I had to deal with some minor problems in the beginning like the MAF sensor, brakes, spark plugs, oil filter and 1 of the 2 O2 sensors wich initially made the service engine light come on and after dealing with that and erasing the warning the car ran like a charm for a couple of days and it started droping the RPM's at idle (standard Jun 21, 2011 · However, here's another thing: When I'm at a stop light, or slow traffic, it will begun to rough idle and it won't perform as expected. Aug 20, 2013 · I have no other symptoms at all, no hard starts, no rough idle, no power delivery problems, etc. Aug 8, 2012 · Rough idle issues. Most E46 have an idle MAF reading of between 3. 2L I6 NA ~360BHP RTD-6SM | Fully-rebuilt motor (forged lightweight rods & FSR pistons + rebalanced crank) & suspension, Conforti shark injector tune, aFe Stage 2 intake, Megan Racing catless SS headers (ceramic coated) + Status Gruppe sec 1 rasp elim + sec 2 un-resonated X-pipe + DNA motoring muffler (LOUD) 2013 BMW Mar 5, 2024 · In gear it will idle around 500rpm and out of gear maybe 600-650. 1 but it caused rough idle many years ago. Jan 4, 2008 · 99 E46 323i Auto 121K miles Also I got very rough idle at startup, with big drops in idle every 20 seconds or so. Bought this car a month ago it’s been sat for over a year it’s a 325ci with 80k miles other than the idle it’s beautiful. We have been seeing power brake boosters leaking vacuum but still functional and no obvious lose of braking effort. I let it sit for about five minutes to warm up, but the rough idle and shaking persisted. It idles smooth at just over 1k RPM. They said it was the "hooter valve and hoses" that needed to be replaced. Sep 10, 2022 · rough idle at stop (no codes) I've been battling this issue for the longest time. I have no initial start-up problems and runs super smooth. I had no idea which ones were related to this and which weren't as I don't know how old each code was. Still rough idle, but BETTER. ) Mass airflow low voltage. Replaced the coil and she purrs like a champ. It is independent of ambient temperature and vehicle (coolant, oil etc) temperature. It's giving no codes I have replaced the battery maf sensor and had the timing looked at and put a pcv hose kit in. They stock mostly OE and OEM parts, so the quality is good, and all parts have a lifetime warranty. I also had copies of the two TSB's with me and he said they need a check engine light to replace those, or stored fault codes. Listed below are the parts I have replaced to get fix a P0442 and P0174/P0171 code I had a few months back (I do not have any of these codes anymore – they have been resolved). Jan 12, 2024 · I believe the 2C code is unrelated. com is a good BMW parts source. I took my car to the dealership (was under warranty til Sept. There’s a borderline problem here. Any suggestions on what the rough idle could be. It still idles very rough and misfires a lot. And at that point, for $35 you may as well replace them anyway. It doesn't happen in the winter in the northeast, only in summer or when outside temp is above 75 or so. So I'm still in a draught to find the issue. It would bounce down to about 400 RPMS and go back up to the normal 700 over and over in a rhythm. My e46 seems to idle rough on cold starts but after some highway driving the idle seems to smooth out. 115 posts · Joined 2010. Alot more noticeable the colder it gets too. Now I'm reading P0102. A forum community dedicated to BMW E46 Jun 10, 2012 · (03 SMG 82K miles) After a rough idle, loss of power and the Vanos fault code kept popping up these are the codes I found with my Peak Code Reader: B8 = Intake camshaft position and control CD = Misfire During Warm-Up Cyl #1 CE = Misfire During Warm-Up Cyl #2 CF = Misfire During Warm-Up Cyl #3 D0 = Misfire During Warm-Up Cyl #4 Sep 25, 2013 · then the idle issue started and when pressing the gas the car bogges down. Whenever my 2002 325i comes to a stop the idle will start bouncing around 500-1000 rpms. Apr 7, 2019 · fcpeuro. Jan 3, 2012 · No codes, only when hot and only when outside temp is hot it idles rough at stand still or park but accelerates with power. Threw my OBD reader on and found a misfire on #1 cylinder code. Sep 3, 2020 · I always get this issue when the car sits for a week. But codes can not always help in this case. Nov 6, 2021 · 2002 325ci M54B25 Auto RHD G'day all. DISA O-ring should be replaced. Apr 1, 2011 · Find out what the codes are. The idle is actually steady on the tach at around 700 rpm, but there is significant vibration/cowl shake in the car. Apr 19, 2013 · M54 Rought Idle but no codes, where do I start? and where the rough idle was the third symptom to show up]. Again, at cold start up idle is fine for less than a minute then very slightly rough once RPM's dip to around 700; you can feel the rough idle Aug 6, 2014 · Took a while to start, really rough idle and didn't rev well. Nov 4, 2020 · Yesterday I got in my car, started it, and immediately noticed a very rough idle that was shaking the car quite a bit. The idle will stabilise after the AC is turned on, im guessing because the idle goes up roughly 100rpm. The car drives fine, with the exception of a bit of a rough idle, but other than that - no issues at all. I took it to my mechanic, the local dealership, and a friend with a box and no codes. Dunno if it helps or makes sense. -Rough idle at all times even after the car is warm. OH! Aug 24, 2024 · 2004 E46 325i MS45. There are lights on the dash and no codes in PAsoft. If you dont have a reader Auto zone can do it. May 10, 2023 · Spark plugs were replaced, ignition coils too, maf was just replaced. Jul 5, 2015 · WARNING - DO NOT buy a cheap ebay MAF, there are many Asian counterfeits on the market that do not work properly. No CEL or any other lights on the dash as well. Parts replaced- I have done the following. These 2 codes never came back however. Jan 27, 2019 · Until today I had no fault codes, but today morning when I started the car for coldstart idle measurement I just got the P0302 fault code. Jun 2, 2012 · Background:-2003 330i, automatic transmission 115k miles. My car is a 2003 330i with M54 engine, manual tranny. The day I test drove it there were no lights on the dash and it ran perfectly, and continued for about a week until I started to get a weird idle. Aug 14, 2013 · Lean codes usually mean vacuum leak. Jump to Latest 25K views 28 replies 9 participants last post by uholmes Jun 30, 2009 Aug 25, 2015 · WARNING - DO NOT buy a cheap ebay MAF, there are many Asian counterfeits on the market that do not work properly. What would cause this issue once it starts idling normally its fine. My oil pressure just stopped reading 100 miles ago or so. As it starts to warm up the revs drop as they should, just as it is reaching low idle at around 600 RPM it will drop to a low RPM almost stalling but it catches itself every time. They did and no more rough idle. May 26, 2024 · Just purchased a 2002 325 XI about 3 weeks back now 170,000 miles. I am at a bit of a loss. 5K to 4K in 6th gear. My 2001 330i experiences rough idling when I stop and occasionally hesitates and sputters while driving. (No telling how long that will last) Apparently water settles in the cylinders, (mine 4,5, & 6) codes 1349, 1351 & 1353, the spark is obviously effected until it can burn of the water once the engine gets warm. No need to replace them. When I start the car from cold, all is fine right away. Save Share Nov 24, 2015 · My car has rough idle only on cold starts until the engine warms up (lasts only 30 secs until the critical warmup). The rpms do drop on the cold mornings and spike back up but again it doesn't stall but I'm pretty sure thats the vanos seals. Problem: Rough idle/cabin shake @ 850rpm with warm engine. I borrowed an USB OBD cable and checked the codes with INPA. I know rough idle is a generic term on e46’s as I’ve done a lot of work myself on these engines and faced many issues but this one is annoying me quite a bit. I usually let it idle like 5 mins then restart it, idle it some more, restart it. On the highway it pulls sluggish from 2. 6) Spray the MAF in and out about 15 sprays and let it dry. Maybe the CCV I bought on Amazon was no good. Crankshaft sensor was replaced. I have no exp with the auto box on these, but it do sound like vacleak in my ears. But this is what I remember; Misfire of some sort on all cylinders. Aug 17, 2010 · rka976. My only guess could be one of the spark plugs maybe wasn’t put in good enough, I didn’t replace the spark plugs myself, or there is some type of vacuum leak but it’s just odd how it’s gone once the car is warmed up and never comes back until cold. . I'm lost at this point any advice would be greatly appreciated. Apr 7, 2015 · This is my first time struggling with a rough idle. The engine coolant only gets to 152F after 700+ seconds. Dec 12, 2008 · Rough Idle - No codes. I've had misfires at idle and really rough idles, upwards of 1000 and lots of stuttering and moving on its own. 0, Painted Calipers May 11, 2024 · As far as I can tell the rough idle has no correlation to the lack of power, as sometimes when the vehicle accelerates fine it still idles rough. 7) Put the MAF back in and start the car. 5-4 Note, there may or may not be Lean Codes showing up. sometimes its worse, sometimes its not as bad. Go back and read jfoj’s thread on “Solve your misfires, lean codes, rough idle” as it lists pretty much all the common vacuum leaks and other engine running issues. Dec 29, 2023 · However, now I can rev the engine a bit before it dies and the car can idle for a longer period of time if you get the engine a little warm. Lean Codes usually trigger at around 10% Fuel Trim values or higher. i noticed that when Jul 31, 2021 · Rough idle, no engine codes or lights. But SOMETIMES it will have a hiccup which seems to me has to be the MAF (mass air flow) for that reason. the idle is extremely rough and often the revs die then pick back up then die and pick back up before eventually stalling (watch video below). And as of last weekend it erraticly sputters when gas is given. I complained about Rough idle, Stalls while driving and RPM surges at idle. After a while I got another code that was never there before. May 20, 2024 · The hot idle log shows the LTFTs around +10% and the STFTs -5% to -8% negative. All I have had time to do so far is rebuild the DISA with no change. Save Share but no P code being thrown just as with the afr sensors. When revved the harshness continues, feels down on power or like a misfire. Your rough idle might very well be gone completely. or rough idle. The car is throwing 2 code (listed below) Oct 19, 2009 · My 2003 325i has a lot of the same issues described in the thread, rough idle, maybe low idle and intermittent idle RPM hiccups where it dips very low under 500 RPMs. (its 99% alcohol base and dries in seconds). I suspect that my ecu is doing its best to handle the rough idle without throwing a code. There are no weird sounds from the pulley's/tensioners. Sep 22, 2008 · Rough Idle I had the same rough idle and lack of acceleration yesterday. Intake air temp goes from 50 to 59F so perhaps it wasn't that cold, in which case maybe the thermostat is soft failing. No hiss sound from the engine bay either. When driven, it is down on power and shudders upon engaging first gear. I essentially did a big overhaul and been wanting to auto/track the M (Big dream of mine). 5) Pull the MAF out gently. To fix the problem with your engine idling speed and no codes, you should visit your mechanic for assistance. Codes P1088 & P1089. Sep 20, 2013 · Well I've had the codes read and have the following: P0012 - A Timing Over Retarded P0015 - B Timing Over Retarded P300 - Random Multiple Misfires Detected P316 - No description P1352 - No description P1525 - No description P1342 - No description P1344 - No description P1346 - No description P1348 - No description BMW Specific: 22 - VANOS Exhaust Nov 6, 2014 · If you are chasing an illusive rough idle and/or Lean codes at idle that you have not been able to find, beware the power brake booster is one more problem area. Jun 11, 2017 · I have a 2001 325i e46 (automatic) and I'm having issues with it running. About 2 months ago a smoke test was done on the car because the check engine light was on and a local shop said I needed to clean or replace the MAF sensor, they said the car had no leaks after running the test. It's good practice to do that. Recently bought another car (sucker for E46 punishment ) and within a week of shelling out for my new chariot I'm getting rewarded with a rough idle and significant multiple cylinder misfires. Aug 15, 2014 · For a few months now the car has had a rough idle that gets worse and develops into a misfire if I let the car sit and idle for a bit. 18, 2010) and complained about a rough idle. ) Intake Cam Sensor and 2. When I release the brake, and press on the gas, there is no power. Usually the cold start is smooth without any problem only the surging is there when drive the car, but today it was very rough for the first time, after warming up it was smoother. Codes- 1. Belts were just changed. Aug 25, 2024 · Hello! I have a 2001 BMW 330ci. Sep 26, 2024 · I do not have a pending or confirmed code(s) and I do not have a SES light. The pedal is all the way down, and it only goes to 20 MPH. my engine idles rough after cold starts and when i'm in gear, mostly when in drive and reverse but it does happen in park and neutral but not nearly as severe originally had codes for my vanos solenoids, after replacing both with brand new oem replacements the rough idling hasn't gone away. Already scanned the vehicle with PA Soft and Torque , but couldn't find any lean codes or whatever. Also replaced plugs with factory ones . Mar 4, 2020 · What was the ambient temperature roughly when the car was started. Apr 15, 2015 · A few comments: 1. Ideal Long Term Fuel Trims at idle or steady cruise should be between 0% to +3%. Ive tried digging into this problem myself but yet it still seems to happen. They also reprogrammed the DME. smoke tested the car, (YES Aug 30, 2017 · Within 5 min, no steam. With only 2 codes. Good luck. The car features poor performance, rough idle (800 RPM), stalling, poor fuel economy, and occasional strange burning smell that I can't locate since I only notice it for a split second and then it vanishes. Apr 8, 2004 · They said they seen it and it produced these fault codes: 274E, 2745, 2744, Missfire at several cylinders. Oct 6, 2012 · The car revs perfectly fine. 2006 (E46) 2006 - 2012 (E90, E91, E92 Feb 16, 2021 · No matter what I replace, the car won't stop stalling. If you did not take the intake boots off completely to inspect them, then you didn't do a good enough job. All is well and working properly - no codes Dec 10, 2018 · The following article gives detailed instructions on performing a rough idle repair on a BMW E46 3 series car. One of my E36's only has K&N cold air and exhaust for mods and the other is bone stock. Recently undertook a massive project on my 03 E46 M3. The code then changed to a misfire on 2. Which is weird. It idles right around 600rpm. When I bring above 950-1k rpm it smooths out. Now the engine stalls in maybe ten seconds on idle and giving a bit of help with the gas pedal doesn't help much. My car rough idle goes away when i turn on the A/C, RPM's go up to about 800 and everything seems fine. Now, this happens every other day. Additionally, I once got a mixture preparation bank 1 and 2 code which came with the misfire codes. Jul 12, 2016 · -Very rough idle, RPMs pulsing up and down like crazy Engine Codes: P0313 Misfire detected with low fuel E46 330CI DIY Mods: Hawk HPS 5. The problem starts once the engine reaches full operating temperature--about 1 Aug 28, 2021 · Quick back story. Jun 26, 2014 · If I drive straight away, the rough idle and shakiness disappears as soon as the temp gauge reach vertical and no codes are thrown. After a few times of this it clears up. Jan 23, 2024 · Hmm. The maf is a tad high maybe, 3-4 g/s is normal on hot idle, so id say its close enough. Any time I start the car I have the idle issue and now when pressing the gas it boggs, not much power. They start by checking the reason for the "no code" problem. See of there is an MAF reading in Grams/Sec. Waited an hour smooth start up. Stupidly enough, I didn’t write down the codes before deleting them. Aug 18, 2011 · I have reviewed most of the rough idling post and can't find one that points to my situation. Things replaced / inspected -new spark plugs and coils done 2 weeks ago. After the work get a consistent rough idle and P0301/4/5 codes when warm (seems to be when suddenly backing off the throttle after having suddenly applied it). When the misfire / rough idle occur, the car shakes, sounds awful and sometimes sputters and dies. In fact, the car drives fantastic other than the random stalls. Start it up and it will misfire like a vacuum leak. When my car is cold on engine starts it sometimes even stalls. This time it doesn't matter if the car cools down or not. Had rpm fluctuation at idle from near ~300 rpm to ~1000 rpm, which made me think it was gonna die, but it never did. What I have done already with no change in behavior: Apr 27, 2008 · I started having a similar problem a few weeks ago. Occasionally it will misfire once if I’m just sitting there at a light idling in gear but it happens rarely. Even though we have used a 2003 BMW 325ci to perform this installation, this article can be applied to any E46 3 series vehicle with the M52 or M54 six cylinder engine (with minor modification), including the 323i, 328i and 330i coupe, sedan and convertible. I bought the car as is at 146 000km/97K miles, previous owner strangely forgot to mention the issue. but i still feel a bit of stuttering until the temp reaches mid-way (normal hot temp), after then everything goes back to normal. In drive / reverse it’s a lot rougher and in park or neutral it’s a lot smoother, but a tiny bit abnormal sometimes. The car has a brand new beissan installed (maybe 1-2k miles ago). Dec 1, 2014 · And when the car does run it runs real rough and smells like fuel it's running rich. #20 · Sep 21, 2010. 2. Coils either work or they don't, so if no coil codes thrown, they are fine. ~147k miles. Once the car is warmed up it has no problem. When combined they are within specifications. The diagnostic report shows the lean codes are pending and not current, which means lean conditions have been seen by DME, but not enough to promote the pending codes to current codes. Mar 15, 2021 · I've been getting engine lights on for P0171 & P0174 for a few weeks now (although the old owner has said he's dealt with the codes in the past but no engine lights in my year of ownership until recently). Dec 17, 2008 · I have no codes or anything and it doesn't stall. Nov 23, 2011 · My 330i has 110k miles and has had a rough idle for a month or two. Sep 11, 2012 · 1995 325i 5mt ArcticGrey/Dove - SOLD 2004 330ci ZHP 6MT SilberGrau/Black - SOLD 2001 330i M-Sport 5MT StaulGrau/Grey - SOLD 1992 Accord LX Sedan 275k miles all original - DAILY Aug 9, 2024 · I sometimes get BMW specific codes of timing over retarded, thermal oil level sensor, and occasionally I'll get misfire codes but that only happened once so far. Jan 31, 2021 · So brief overview, I just bought an e46, and this set of codes has shown up twice so far, but I haven’t been able to notice any power loss, rough idle, weird sounds, or anything. I purchased this car around 2 months ago to go with my 2001 325ci. I do have the capability to pull and log live Oct 4, 2022 · I have a 2004 318i with the N42 engine. Get one from German Auto Solutions. May 15, 2012 · i'm also having a rough idle at startup, the RPM sometimes plays all over the place for around 20 sec, but most of the time as soon as i start it up, it reaches 1100 RPM, drops to 900 RPM then goes back up to 1100 until it warms up. -car has no vacuum leaks (smoked tested). this idle surge comes around at every red light and stop light and its usually worse when I have the AC on. I read the write up for VANOS and it mentioned the A/C makes the problem worse. I Literally am out of ideas for what could be wrong! I have a rough idle and power decrease. There is still white smoke going out the exhaust and the oil filler cap creates suction. Sep 20, 2023 · Previous to the work just had the periodic dropping idle and lack of low end power - no misfires. The car is fine after the rough idle is gone. Feb 6, 2023 · 2004 BMW e46 / / / M3 S54 3. It would idle rough and pull sluggish up to 2K and then take off. ghpgt gkctzv lxvy tvyi zqgdi iypd httl ftcnowb sdbq yuqka