» Site Navigation | | » Recent Threads | | | | | | | | | | 10-15-2009, 08:44 PM | #1 | Junior Member Join Date: Sep 2009 Location: Newfoundland Posts: 27 | Engine Losing Power and Shaking Hey guys, I'm having trouble with my 99ti. Today out of nowhere my engine lost alot of power, and was sputtering a little. There was a shaking that went throughout the car and seemed consistent with a miss.. What surprised me was that after a few hours of leaving the car off, it drove fine for a few minutes then went back to the shaking and no power. The check engine light is on, and has been on for a while due to an O2 sensor needing to be replaced, but it flashed while i was driving at one point.. Also, yesterday we had a lot of rain and slush, so I'm thinking that may have created some dampness in the electrical system. Any help on this would be greatly appreciated, I'm a poor student at the moment, so garage trips are a little costly, especially since it would cost over 800 bucks just to get to the closest dealer.. Thanks again.. Aaron | | | 10-15-2009, 08:44 PM | #2 | Junior Member Join Date: Sep 2009 Location: Newfoundland Posts: 27 | I should also mention that it's an automatic. thanks again | | | 10-15-2009, 09:29 PM | #3 | Senior Member Join Date: Apr 2009 Location: TampaBay, Florida Posts: 104 | use a rag and a tire pressure gauge. when its cold start it and shut off, open schaeder cap on fuel rail and check pressure. low could mean bad pump, fuel filter clog, or bad fuel regulator. FP access is under pass rear seat. | | | 10-15-2009, 11:53 PM | #4 | Moderator Join Date: Mar 2007 Location: Maryland Posts: 3,220 | run codes, go from there, advance auto can diagnose for free | | | 10-15-2009, 11:56 PM | #5 | Senior Member Join Date: May 2006 Location: 43609 Posts: 3,425 | A flashing CEL, while engine is running, is a consistent misfire and the DME is telling you there is one and its being recorded. Get the codes read, then go from there. You likely have water or oil in the spark plug gallies or have an issue with Ignition. __________________ 1995 Hellrot Clubsport 318ti -Gone 1996 Schwartz II Sport 357ti - 5.7L V8 LS1/6 1997 Moregrun Metallic 318ti - Gone 1998 Schwartz II sport 318ti - M50TUB25/5 | | | 10-16-2009, 04:48 AM | #6 | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 | Check the simple first, check the main air tube from the air meter to the throttle body. They are prone to getting small cracks on the bottom side and causes your exact symptom. Dave __________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | 10-17-2009, 06:14 PM | #7 | Junior Member Join Date: Sep 2009 Location: Newfoundland Posts: 27 | I should also mention that a day before the slushy weather my battery randomly died after about 20 minutes parked with no lights or electronics left on. The battery is fairly new. I'm not able to see any cracks around the throttle body either. I'm getting the codes read on Monday, so hopefully that may help.. | | | 10-19-2009, 06:51 AM | #8 | Member Join Date: Sep 2009 Location: San Jose,Ca Posts: 37 | Quote: Originally Posted by Aaron_99TI I should also mention that a day before the slushy weather my battery randomly died after about 20 minutes parked with no lights or electronics left on. The battery is fairly new. I'm not able to see any cracks around the throttle body either. I'm getting the codes read on Monday, so hopefully that may help.. | I had the EXACT some problem with the battery last week! more info on this PLZ. | | | 10-19-2009, 11:56 PM | #9 | Junior Member Join Date: Sep 2009 Location: Newfoundland Posts: 27 | I didn't get to get the codes read today unfortunately. I'll post when something happens. lol. | | | 10-20-2009, 12:49 PM | #10 | Senior Member Join Date: Apr 2009 Location: TampaBay, Florida Posts: 104 | Use a 3' flexable tube to listen for air leaks around that, and CCVV. Air leak will cause mis. | | | 10-22-2009, 10:28 PM | #11 | Junior Member Join Date: Sep 2009 Location: Newfoundland Posts: 27 | Alright kids, I got a scanner and here are the results I got. Code P0301 Cyl 1 Misfire Fuel sys 1 - CL Calc Load - 5.4% ETC - 107 degrees STFT - was varying between - 0.7 to past 2 or 3 LTFT - 0% Spark - 25 degrees. I couldnt read my own writing here, and it acually said something like sparkaon or something. i dunno.. IAT - 46 MAF - 1.027 tps - 3.4% Air Status - OFF O2S B1S1 (v) - .620 STFT B1 S1 - 5.4 (fluctuating) O2S B1 S2 - .500 STFT B1 S2 - N/A The following lights were on solid, - MIS, FUE, CCM, HTR. The following lights were blinking - CAT, EVA, AIR, O2S If anyone could decipher any of this in relation to my issue, it would be greatly appreciated. I haven't been driving in a week and it's killing me! Thanks in advance! | | | 10-23-2009, 04:42 PM | #12 | Senior Member Join Date: Apr 2009 Location: TampaBay, Florida Posts: 104 | Have the tire pressure checked by a professional. #3 | | | 10-23-2009, 11:07 PM | #13 | Senior Member Join Date: Jun 2007 Location: Ferndale, MD Posts: 462 | Man, the same exact thing just happened to mine, time to dig out the peake tool! __________________ No trunk for the Junk | | | 10-27-2009, 03:19 PM | #14 | Junior Member Join Date: Sep 2009 Location: Newfoundland Posts: 27 | Turns out there was water in the well for spark plug #1. had it taken out and cleaned up and works perfect. Anyone know the best way of getting to the plugs myself in case this happens again? I was under the car and it still looks difficult to access. does my fender have to come off? Or do some other components have to come out? | | | 10-28-2009, 03:48 AM | #15 | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 | ?? The plugs are right on top of the engine... Under the plastic BMW logo Plate, easy as pie and you have a wrench in the car toolkit... Dave __________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Thread Tools | | Display Modes | Linear Mode | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |