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#41
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Gotcha. I'm kind of stumped then. Misfire codes by themselves don't really give you a ton to go on.
BTW I posted fitment pictures of that head unit in a thread I just started.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
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#42
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Just another update, I started the car this morning and perfect. No rough idle or flashing cel.
This was after sitting over 24hrs as I didn't drive it at all on Sunday and mornings are colder than ever now. Really stumped on this. The only change is that I put a solar battery tender via the rear cargo 12v outlet since Saturday morning. I put a solar charger because of "possible" weak battery issue. But have no other symptoms of a bad battery. Will report back if this is due to a weak battery. So is it possible that a failing battery could cause this? Doesn't the alternator take over as soon as you start the car? Sent from my iPhone using Tapatalk Pro
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2005 Imola 4.8iS |
#43
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^Could be coincidence. Usually once the car is started, provided the alternator is providing good voltage, and the battery isn't TOTALLY shot... it should idle just fine.
I was going to ask if your o2 sensors had ever been changed.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#44
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As far I know it has not been changed. But from my experience o2 sensors either work or they don't. And would definitely throw a fault code either via obd or bmw scanner as soon as possible.
Sent from my iPhone using Tapatalk Pro
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2005 Imola 4.8iS |
#45
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^Normally I would say the same. I just replaced mine @ 118,000 miles with no CEL. First startup was fast and smooth. More so than "normal." I've also read here reports of others getting better gas mileage after replacing the front o2 sensors. I had them here and was under the vehicle so figured I would do them. Was surprised at how fast and smooth the first start was.
That's just one start so far though... and is just anecdotal. Nothing concrete yet that the sensors will provide any better service than the ones I removed. ![]()
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#46
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Overnight Cold Start Rough Idle N62 4.8iS
Yes I'm sure a new clean o2 will perform better than a used one. I was thinking of changing mine too ever since doing the vss job. I don't know how long it's been going on because the previous owner swore it never smoked. But judging by how little it smoked I'll give him the benefit of the doubt that he probably didn't know.
So I have been doing a lot of the "Italian Tune-Up" lately or any chance I ever get since the VSS was performed LOL Sent from my iPhone using Tapatalk Pro
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2005 Imola 4.8iS |
#47
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Gotta blow the carbon off those valves right!
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#48
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Quote:
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'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M. |
#49
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I used Bosch sensors from fcp so that if I ever have to do them again... They're "free.".
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#50
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mr_r
I can see how if one was leaving the car at the airport and throwing the solar charger on it just because. Personally, I can't see how much juice it could be putting back into the lead acid- in the mah range. If it's a short tripper daily driver, even in this current chassis or ones with [email protected]% SOC, I'd err on just a 120V charger as any lead acid is most happiest when @ full SOC btw, I might have missed it. did you get around to charging and then doing a load test post charge. Last edited by jsoto; 12-11-2018 at 11:28 AM. |
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