The BMW UUC Digest Volume 2 : Issue 849 : "text" Format Messages in this Issue: More problems E30 Re: More problems E30 <E36> belt tensioners [E36] ECU gone mad? What else could it be?/ Re: [E36] ECU gone mad? What else could it be?/ Re: [E36] ECU gone mad? What else could it be?/ FW: [Ferrari] NFC: F1 rule changes for 2006: Qualifying Re: [Ferrari] NFC: F1 rule changes for 2006: Qualifying <E36> Key initialization?
---------------------------------------------------------------------- Date: Sat, 29 Oct 2005 20:25:56 -0700 (PDT) From: "Ryan Simmons" <[EMAIL PROTECTED]> To: [email protected] Subject: More problems E30 Message-ID: <[EMAIL PROTECTED]> Following Paul's advice, I replaced the O2 sensor today. It seemed that the surging on my 87 325e was characteristic of his problems with his 325es and others. The O2 sensor did not solve my problem. I took the air flow meter out and inspected it. It moves freely, but is a little dirty. I then checked for vacume leaks and could not find any (just visually and physically checked). Also checked plug wires since those are way over due for replacement. They were out of spec. Book calls for them to be between 1000 and 5000 ohms, they are around 5800. I don't suspect that this is the cause of the problem. Today driving home on the rural highway, the motor started sputtering, hesitating if I tried to accelerate. I was going 60mph when it started. Acceleration is poor here and there, the problem is intermitent. Accelerating through first gear will be fine, second gear poor, third fine, fourth poor and not in any particular order. The exhaust stinks like too much fuel. Fuel filter changed Plugs, cap, rotor, O2 sensor. This is a problem that has gotten progressively worse over the course of six or seven months. I suspect the air flow sensor is bad. Has anyone had a similar problem? Any ideas? Thank you, Ryan- ------------------------------ Date: Sun, 30 Oct 2005 10:04:08 -0800 From: John Bolhuis <[EMAIL PROTECTED]> To: [email protected] Subject: Re: More problems E30 Message-ID: <[EMAIL PROTECTED]> On Sat, Oct 29, 2005 at 08:25:56PM -0700, Ryan Simmons wrote: > I suspect the air flow sensor is bad. Has anyone had a similar > problem? Any ideas? People used to talk about the old barn door AFMs more often. Oh the poor old E30s... The working guts of the AFM are just a temp sensor and a potentiometer that reads the position of the barn door. Like any potentiometer, they can get worn and/or dirty, producing erratic readings. You can often extend their life by opening it up and cleaning it carefully with some electronic cleaner. Others have reported success carefully bending the wiper so that it takes a slightly different track across the surface of the circuit board. Proper bench measurement can tell you if you are getting a good signal from the unit. Simply hooking a DMM across the appropriate terminals and attempting to measure resistance as you move the mechanism has never worked for me. Jumpy readings result even on a working AFM. You need to apply 5V across the 2 ends of the potentiometer, and then use your DMM to measure voltage at the wiper terminal. This should produce a smoothly increasing/decreasing reading as you move the mechanism. The exact pinout of the AFM escapes me, but if you pry the plastic cover off, you can see what to do. Be sure to seal it up properly when you're done, and don't monkey with the adjustable spring. Newer BMWs use hot wire MAF technology and just aren't as much fun to monkey with, what with the lack of moving parts. :) My Subaru has gone even simpler, ditching the MAF sensor for an even simpler MAP system. -- "It is an honor to be Cookie Monster." -Sesame Street spokeswoman Audrey Shapiro ------------------------------ Date: Sat, 29 Oct 2005 23:37:17 -0700 (PDT) From: Brian Ruiz <[EMAIL PROTECTED]> To: UUC Digest <[email protected]> Subject: <E36> belt tensioners Message-ID: <[EMAIL PROTECTED]> Getting ready to change the belt tensioners and pulleys on my S50. I looked through the Bentley several times, but couldn't find any procedures or torque specs for the bolts for these. Can someone send this info? Thanks, Brian __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.com ------------------------------ Date: Sat, 29 Oct 2005 12:08:35 +0200 From: Pavel Tcholakov <[EMAIL PROTECTED]> To: "[email protected]" <[email protected]> Subject: [E36] ECU gone mad? What else could it be?/ Message-ID: <[EMAIL PROTECTED]> Hi list, While I was washing my car (1994 320i, M50B20TU) yesterday , I noticed something very worrying - the fuel pump was switching itself on and off, at random intervals, for random periods of time - and the keys weren't even in the ignition. I washed it just like I wash it every other time, I specifically checked later for water around the fuse/relay box, ECU - it was all dry. I have an after-market immobiliser system (required by insurance co.) but that seems to be working fine. Needless to say, the car wouldn't start after the wash. It cranked but wouldn't catch on. Exhaust smelled like fuel, I suspected the engine was flooded. I pulled the fuel pump fuse and left it till this morning - when I managed to start it briefly, but it sounded like it was running on very few cylinders and could barely idle. I left it running for about 10 min, after which it died and I can't re-start. I tried to re-start and it did very briefly, but sounded like it was running on even fewer cylinders - either that, or the fuel pressure was extremely low. It died almost immediately. After that, the fuel pump started doing weird things again - turning on and off, and the rev counter was jumping around like mad (key in ignition) while engine was off. I suspect fried ECU, what else could it be? Faulty relay? Fuel pump itself? As far as I know, my immobiliser does cut off the power to the fuel pump, but it definitely can't *make it* switch on. Any hints would be most appreciated. Best regards, Pavel ------------------------------ Date: Sun, 30 Oct 2005 12:18:50 -0500 From: "Marc Plante" <[EMAIL PROTECTED]> To: [email protected] Subject: Re: [E36] ECU gone mad? What else could it be?/ Message-ID: <[EMAIL PROTECTED]> I know on the E36 2.5s in the US, the crank sensor can go bad. The ECU loses a sense of whether the motor is running since it uses the crank sensor to count revoluitons. If it loses track, it dumps fuel into the motor to keep it from stalling. This can result in the engine flooding, stalling it and making it very hard to start afterwards (wait til this happens to you in a crowded intersection. If the car sputters and stalls like this, try holding your foot to the floor while turning the key. Holding your foot down actually kills the fuel injection, allowing the motor to catch up and start. It takes a bit of cranking (15-20 secs). Not sure if you have the diagnostics built into your car (pumping the pedal 5 times in 5 secs right after you turn on ignition). this might give you insight as to whether you're getting bad readings from that specific sensor. Maybe something to try, though your mention of the Fuel pump running with the keys out of the ignition is a data point I can't account for. Marc Plante 1997 E36M3/4 67k 2005 Child 63pd Vienna, VA ----- Original Message ----- From: "Pavel Tcholakov" <[EMAIL PROTECTED]> To: "[email protected]" <[email protected]> Subject: [UUC] [E36] ECU gone mad? What else could it be?/ Date: Sat, 29 Oct 2005 12:08:35 +0200 > > Hi list, > > While I was washing my car (1994 320i, M50B20TU) yesterday , I noticed > something very worrying - the fuel pump was switching itself on and > off, at random intervals, for random periods of time - and the keys > weren't even in the ignition. I washed it just like I wash it every > other time, I specifically checked later for water around the > fuse/relay box, ECU - it was all dry. I have an after-market > immobiliser system (required by insurance co.) but that seems to be > working fine. > > Needless to say, the car wouldn't start after the wash. It cranked but > wouldn't catch on. Exhaust smelled like fuel, I suspected the engine > was flooded. I pulled the fuel pump fuse and left it till this morning > - when I managed to start it briefly, but it sounded like it was > running on very few cylinders and could barely idle. I left it running > for about 10 min, after which it died and I can't re-start. I tried to > re-start and it did very briefly, but sounded like it was running on > even fewer cylinders - either that, or the fuel pressure was extremely > low. It died almost immediately. After that, the fuel pump started > doing weird things again - turning on and off, and the rev counter was > jumping around like mad (key in ignition) while engine was off. > > I suspect fried ECU, what else could it be? Faulty relay? Fuel pump > itself? As far as I know, my immobiliser does cut off the power to the > fuel pump, but it definitely can't *make it* switch on. > > Any hints would be most appreciated. > > Best regards, > Pavel > > Search the ARCHIVES:http://www.mail-archive.com/[email protected] > > > __________________________________________________________________________ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com ------------------------------ Date: Sun, 30 Oct 2005 20:48:47 +0200 From: Pavel Tcholakov <[EMAIL PROTECTED]> To: "[email protected]" <[email protected]> Subject: Re: [E36] ECU gone mad? What else could it be?/ Message-ID: <[EMAIL PROTECTED]> Ok, here's the latest. It started just fine this morning - no trouble at all. I'm sure I got somethign wet what I shouldn't have. I've no idea how, but that's the only feasible explanation. I think it will spend a few days with a trusty mechanic just to be on the safe side... One thing that's still misbehaving is the rev counter - it overreads by about 500 RPM, the revs go up in "steps", and after ~ 3500 RPM it goes totally beserk - jumping up and down all over the place. I disconnected the battery for about half an hour but it made no difference. Have I fried my rev counter? Cheers, P. On 10/30/05, Marc Plante <[EMAIL PROTECTED]> wrote: > I know on the E36 2.5s in the US, the crank sensor can go bad. The ECU loses > a sense of whether the motor is running since it uses the crank sensor to > count revoluitons. If it loses track, it dumps fuel into the motor to keep it > from stalling. This can result in the engine flooding, stalling it and making > it very hard to start afterwards (wait til this happens to you in a crowded > intersection. If the car sputters and stalls like this, try holding your > foot to the floor while turning the key. Holding your foot down actually > kills the fuel injection, allowing the motor to catch up and start. It takes > a bit of cranking (15-20 secs). > > Not sure if you have the diagnostics built into your car (pumping the pedal 5 > times in 5 secs right after you turn on ignition). this might give you > insight as to whether you're getting bad readings from that specific sensor. > > Maybe something to try, though your mention of the Fuel pump running with the > keys out of the ignition is a data point I can't account for. > > Marc Plante > 1997 E36M3/4 67k > 2005 Child 63pd > Vienna, VA > > > ----- Original Message ----- > From: "Pavel Tcholakov" <[EMAIL PROTECTED]> > To: "[email protected]" <[email protected]> > Subject: [UUC] [E36] ECU gone mad? What else could it be?/ > Date: Sat, 29 Oct 2005 12:08:35 +0200 > > > > > Hi list, > > > > While I was washing my car (1994 320i, M50B20TU) yesterday , I noticed > > something very worrying - the fuel pump was switching itself on and > > off, at random intervals, for random periods of time - and the keys > > weren't even in the ignition. I washed it just like I wash it every > > other time, I specifically checked later for water around the > > fuse/relay box, ECU - it was all dry. I have an after-market > > immobiliser system (required by insurance co.) but that seems to be > > working fine. > > > > Needless to say, the car wouldn't start after the wash. It cranked but > > wouldn't catch on. Exhaust smelled like fuel, I suspected the engine > > was flooded. I pulled the fuel pump fuse and left it till this morning > > - when I managed to start it briefly, but it sounded like it was > > running on very few cylinders and could barely idle. I left it running > > for about 10 min, after which it died and I can't re-start. I tried to > > re-start and it did very briefly, but sounded like it was running on > > even fewer cylinders - either that, or the fuel pressure was extremely > > low. It died almost immediately. After that, the fuel pump started > > doing weird things again - turning on and off, and the rev counter was > > jumping around like mad (key in ignition) while engine was off. > > > > I suspect fried ECU, what else could it be? Faulty relay? Fuel pump > > itself? As far as I know, my immobiliser does cut off the power to the > > fuel pump, but it definitely can't *make it* switch on. > > > > Any hints would be most appreciated. > > > > Best regards, > > Pavel > > > > Search the ARCHIVES:http://www.mail-archive.com/[email protected] > > > > > > __________________________________________________________________________ > > In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > > > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > > Short Shifter - accept no substitutes! > > 908-874-9092 . http://www.uucmotorwerks.com > > > Search the ARCHIVES:http://www.mail-archive.com/[email protected] > > > __________________________________________________________________________ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com > ------------------------------ Date: Sun, 30 Oct 2005 20:41:08 -0500 From: "Dennis Liu" <[EMAIL PROTECTED]> To: "911" <[EMAIL PROTECTED]>, "BMW List" <[email protected]> Subject: FW: [Ferrari] NFC: F1 rule changes for 2006: Qualifying Message-ID: <[EMAIL PROTECTED]> FYI!!!! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Reynolds Sent: Sunday, October 30, 2005 5:21 PM To: [EMAIL PROTECTED] Subject: [Ferrari] NFC: F1 rule changes for 2006: Qualifying >From http://www.formula1.com/news/3770.html Knockout qualifying for 2006 Plus tyre changes to return during the race An exciting new qualifying format will be used to determine the starting grid at Grands Prix next season. The 'knockout' system - the preferred choice in a poll of over 150,000 formula1.com users earlier this year - will replace the existing single-lap format. Following approval from the FIA World Motor Sport Council on the Wednesday, the one-hour qualifying session on Saturdays will now be split into three distinct parts, each with multiple drivers on track simultaneously, and each with the drivers running as many laps as they want: Part one: All 20 cars may run laps at any time during the first 15 minutes of the hour. At the end of the first 15 minutes, the five slowest cars drop out and fill the final five grid places. Part two: After a five-minute break, the times will be reset and the 15 remaining cars then will then run in a second 15-minute session - again they may complete as many laps as they want at any time during that period. At the end of the 15 minutes, the five slowest cars drop out and fill places 11 to 15 on the grid. Part three: After another five-minute break, the times are reset and the final 20-minute session will feature a dramatic shootout between the remaining 10 cars to decide pole position and the starting order for the top 10 grid places. Again, these cars may run as many laps as they wish. As an added twist, an element of suspense and pit strategy remains entwined in the new format. In the first two 15-minute sessions, cars may run any fuel load and drivers knocked out after those sessions may refuel ahead of the race. However, the top-ten drivers must begin the final 20-minute session with the fuel load on which they plan to start the race. They will be weighed before they leave the pits, and whatever fuel they use in the 20 minutes may be replaced at the end of the session. In other changes approved by the Council for 2006, the rule limiting a driver to a single set of tyres for qualifying and the race will be dropped. Tyre changes will be allowed during the race, though drivers will be limited to seven sets of dry-weather tyres during the weekend. Tyres used in qualifying and the race must be of the same specification. The Council also approved a package of measures for the 2008 season. These include the introduction of the FIA's Centreline Downwash Generating wing, larger wheels with slick tyres and a single tyre supplier. The package will be brought forward to 2007 if an 80 percent majority of the Formula One Technical Working Group agree to do so before the end of December 2005. Ferrari Stuff for sale at: http://www.tomandkarenspage.com/ferraristuff.html House for sale: http://www.mcgrawdavissonstewart.com/mhtlistings/527716index.html -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.338 / Virus Database: 267.10.19/92 - Release Date: 09/07/2005 -------------------------------------------------------------------------- Win More eBay Auctions for Less Money Nip it in the Bid http://www.BidNip.com ------------------------------ Date: Sun, 30 Oct 2005 20:40:33 -0500 From: "Dennis Liu" <[EMAIL PROTECTED]> To: "'Tom Reynolds'" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Cc: "911" <[EMAIL PROTECTED]>, "BMW List" <[email protected]> Subject: Re: [Ferrari] NFC: F1 rule changes for 2006: Qualifying Message-ID: <[EMAIL PROTECTED]> On both these rule changes and the new wing, I have but one thing to say: Halle-friggin'-loo-YAH!!!!!! vty, --Dennis -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Reynolds Sent: Sunday, October 30, 2005 5:21 PM To: [EMAIL PROTECTED] Subject: [Ferrari] NFC: F1 rule changes for 2006: Qualifying >From http://www.formula1.com/news/3770.html Knockout qualifying for 2006 Plus tyre changes to return during the race An exciting new qualifying format will be used to determine the starting grid at Grands Prix next season. The 'knockout' system - the preferred choice in a poll of over 150,000 formula1.com users earlier this year - will replace the existing single-lap format. Following approval from the FIA World Motor Sport Council on the Wednesday, the one-hour qualifying session on Saturdays will now be split into three distinct parts, each with multiple drivers on track simultaneously, and each with the drivers running as many laps as they want: Part one: All 20 cars may run laps at any time during the first 15 minutes of the hour. At the end of the first 15 minutes, the five slowest cars drop out and fill the final five grid places. Part two: After a five-minute break, the times will be reset and the 15 remaining cars then will then run in a second 15-minute session - again they may complete as many laps as they want at any time during that period. At the end of the 15 minutes, the five slowest cars drop out and fill places 11 to 15 on the grid. Part three: After another five-minute break, the times are reset and the final 20-minute session will feature a dramatic shootout between the remaining 10 cars to decide pole position and the starting order for the top 10 grid places. Again, these cars may run as many laps as they wish. As an added twist, an element of suspense and pit strategy remains entwined in the new format. In the first two 15-minute sessions, cars may run any fuel load and drivers knocked out after those sessions may refuel ahead of the race. However, the top-ten drivers must begin the final 20-minute session with the fuel load on which they plan to start the race. They will be weighed before they leave the pits, and whatever fuel they use in the 20 minutes may be replaced at the end of the session. In other changes approved by the Council for 2006, the rule limiting a driver to a single set of tyres for qualifying and the race will be dropped. Tyre changes will be allowed during the race, though drivers will be limited to seven sets of dry-weather tyres during the weekend. Tyres used in qualifying and the race must be of the same specification. The Council also approved a package of measures for the 2008 season. These include the introduction of the FIA's Centreline Downwash Generating wing, larger wheels with slick tyres and a single tyre supplier. The package will be brought forward to 2007 if an 80 percent majority of the Formula One Technical Working Group agree to do so before the end of December 2005. Ferrari Stuff for sale at: http://www.tomandkarenspage.com/ferraristuff.html House for sale: http://www.mcgrawdavissonstewart.com/mhtlistings/527716index.html -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.338 / Virus Database: 267.10.19/92 - Release Date: 09/07/2005 -------------------------------------------------------------------------- Win More eBay Auctions for Less Money Nip it in the Bid http://www.BidNip.com ------------------------------ Date: Sun, 30 Oct 2005 22:19:18 +0200 From: Pavel Tcholakov <[EMAIL PROTECTED]> To: "[email protected]" <[email protected]> Subject: <E36> Key initialization? Message-ID: <[EMAIL PROTECTED]> Hi list, Ok, after my escapades with the fuel pump earlier... here comes the second installment. I'm kind of wondering what else could possibly happen??? I managed to get my key wet, so I had to dismantle it to dry it up. Of course, this means it lost its memory. Now the owner's manual states that, in the event that you can't disengage the alarm otherwise, you open the door with the key, get in, close the door, put the key in position 1 and wait for 15 minutes. It further states that to initialize a key, one turns the key to position 2 in the ignition briefly, then takes it out and depresses the lock button thrice while holding the unlock button. I did the whole thing up to where I move the key to position 2 - the alarm just sounded again, and nothing else happened. I tried numerous times to turn the key to p. 2 and repeat the re-intialization procedure, but no luck. Please, PLEASE help :-) Best regards, Pavel 1994 320i - hates water ------------------------------ End of [bmwuucdigest] digest(9 messages) **********
