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#11
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https://www.finjector.com/fin/3_napa...2-p-522161-229
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
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#12
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we're in Texas, not in the civilized EURO world
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I could get a similar Bosch kit from Amazon, but I think I could make my design work just as well, using silicone sealant to secure & waterproof the inserted/tinned wire ends (with silicone tape wrapped arond it, as a cover). Remember, it's just an experiment.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide Last edited by workingonit; 09-12-2024 at 12:59 AM. |
#13
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experimental MAF reset switch: which circuit to interrupt?
It’s gotta be a multitude of sensors then.
E53 RiPPeR XOuTPoST jUNkiE ReVELaTiON 22:21
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#14
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"It’s gotta be a multitude os sensors then."
I don't understand what you're saying. Please translate. Sent from my SM-G965U using Tapatalk
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#15
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experimental MAF reset switch: which circuit to interrupt?
If I understood correctly, your MAF at least one is possibly shot. Is the DISA functioning correctly without leaks? Have you looked at the cam sensor data? Checked primary O2 voltage’s? And also, some don’t think secondary O2’s have any function other than reading cats. I would still check voltage’s. If any one of these sensors are tired, it can cause issues. Smoking didn’t reveal my leaking DISA. Make sure “new” replacement parts have proper voltage. Genuine parts are generally more reliable than most others. Some manufacturers have quality parts, but it can still be hit and miss these days it seems.
E53 RiPPeR XOuTPoST jUNkiE ReVELaTiON 22:21
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#16
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I checked all of the above at one time or several times...found nothing amiss. I even posted a graph of the O2 sensors functionality. The upstream O2 sensors were replaced by the previous owner with Bosch pieces, about 4k miles ago. I'm not sure about the downstream units, though.
I rebuilt my DISA with the G.A.S. kit, with the upgraded O-ring, and used a wrap of Teflon tape and Silicone paste to ensure a good seal and easy install, without damaging the new O-ring. I had an exhaust cam fault pop up, replaced it with a VEMO part (made in Germany), and it fixed the fault. I've replaced no other sensors, except for the two cheap MAFs. The PO also replaced the secondary air valve and vacuum tubing, FPR, and a lot of other parts in engine bay and suspension. He did a good job, since the truck runs and drives perfectly fine. Except for not replacing the deteriorating clutch fan (I did, with a hi-powered electric fan, as soon as I could, after we swapped cars), I can find no fault with his work, all done about 4k miles ago. I mentioned that my fuel trim readings get worse as my short trip, low speed, stop and go normal driving persists, and that I've noticed that the fuel trims (long term, of course) trend downward if & when I actually do some highway driving. Well, I'm going to get to make an 80 or so mile trip to my mom-in-laws ranch today (my wife is driving her Lexus, separately, because she's staying there overnight) for a family event. I'll observe the LTFTs falling, I expect. Also, since I'll be coming home after dark, I'll be using my X5's headlights for the first time ever, while driving. Never drove it after dark before. Sent from my SM-G965U using Tapatalk
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#17
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Well the way I see it is if you’ve come up with this “MAF Switch” then it’s pretty much narrowed down. If you’re not willing to commit to a genuine replacement part at least try a Siemens VDO MAF. I have used them in the past with zero issues. Cheap knock off sensors will work sometimes. More often not though. They can even produce proper readings, and still fail to properly report to the DME.
E53 RiPPeR XOuTPoST jUNkiE ReVELaTiON 22:21
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#18
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when in doubt, work-around
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The MAF sensor that I removed, for underreporting airflow, was a Siemens VDO sensor. it's the correct part # and was also well-cleaned with MAF cleaner spray. I don't know how it was cleaned before I owned the X, maybe with brake cleaner? (a non-no), but I didn't want to pay the big bucks to replace it with the same unit, not knowing if it work to make the problem go away. Another forum member offered to send me a tested, trusted Siemens VDO sensor, for testing purposes only, but he never did, so I bought a cheap Amazon MAF that X5chemist had used (and is still using, years later) with success. I've often considered buying other mid-range sensor brands (from Hella, Bremi, Pierburg, and other brand names I've used and trusted), but there's no guarantee of getting anything that works better than the cheap Amazon unit(s) I already have (they report the MAF airflow higher than the old Siemens, at flows that others have reported as correct). So, until I find the actual problem, I will just keep resetting the cheap MAF (unless YOU might send me a trusted unit for cross-checking with...hint, hint!!). The remote reset is just an idea for just another work-around device I thought that I might want to make/use, the idea occurring while sitting at a stoplight in a rainstorm, but decidely not really a necessity, at all). My mind goes off on tangents, creating work-arounds for problems all the time; I've been doing that for in-home projects, and for items used in my cars/trucks/racecar for over 50 years, and even at work when the electro-mechanical "experts" (including factory-sent experts) couldn't or wouldn't fix my machines...anything that would work.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide Last edited by workingonit; 09-08-2024 at 10:15 AM. |
#19
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It's also possible you may just have a weird DME fault causing this - the MS43 has a barometric sensor on the DME board and I've seen similar issues with an MS45 with a barometric sensor problem. The sensor didn't fail - so no code, but it was faulty - the result of this was the erroneous data fed to the DME messed up the fuel trims. The car I was working on would throw consistent O2 sensor codes after enough driving.
There's nothing wrong with creative solutions, but this isn't a solution - it's a bandaid My advice... First and foremost, stop doing this. Let it set a code and go from there. Last edited by BimmerBreaker; 09-10-2024 at 04:21 PM. |
#20
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Quote:
Readings were all over the place! E53 RiPPeR XOuTPoST jUNkiE ReVELaTiON 22:21
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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