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  #51  
Old 05-06-2022, 11:18 PM
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getting closer to a solution

Quote:
Originally Posted by andrewwynn View Post
I found this;

External 8V1 thread: 0.305 in (7.747 mm) x 32 TPI[4] (1⁄32 in or 0.7938 mm pitch; tap size 8v1-32)

No idea what the hell 8v1 is.
I already listed similar dimensions and tap sizes in posts #36 and #39 in this thread.

What everything points to is that the fuel pressure kits that had a fitting that worked on the BMW Schrader valve (so far, the HF Pittsburgh kit & the OTC 5630 kit) had two fittings : a large one for GM/Chrysler, and a small one for Ford. My Amazon-cheapo kit has some strange fittings that may or may not be primarily for US domestic cars/trucks like the HF & OTC kits, and the nearest to the correct sized adapter fitting may not be precise enough to fit.

I now believe that the Ford adapter will fit good-enough on the BMW Schrader for testing. I found this on Amazon
Name:  S&G 33850 fuel injection test adapter.jpg
Views: 87
Size:  123.3 KB possibly what I need

What do you think, andrewwynn? I shouldn't have tried to save a few bucks ordering the kit I did; I also would've tried the HF Pittsburgh kit you have, but the nearest store with one in stock was a two hour trip from my home, and I hate Dallas traffic after 50 years commuting thru it.
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'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")
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  #52  
Old 05-06-2022, 11:23 PM
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That actually says it fits bmw in there description. I think that is a winner.

Doesn't HF ship?
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  #53  
Old 05-07-2022, 01:31 PM
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“ fits BMW e46 By Amazon Customer on August 21, 2019”
Good enough to try.
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  #54  
Old 05-07-2022, 02:31 PM
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Schrader adapter on the way; new problem, and possible progress on the SES triggers

Quote:
Originally Posted by X5chemist View Post
fits BMW e46 By Amazon Customer on August 21, 2019
Good enough to try.
Xchemist, I bought one on Amazon just after I posted the photo last night. I hope it works.

And andrewwynn, I looked up "pittsburgh" items on HF: they do ship (5-7 business days), but the test kit in question isn't available online. I would've had to drive over two hours across two counties to a store that had one or two (maybe) left in stock.

Now I've got a new problem, the fuel gauge quit working.

We were out to vote and then for brunch, when I thought to top up the fuel tank, which read just past half-full (why take chances with the finicky BMW system?). I put in 15.33 gallons of premium, and that's when I noticed the needle didn't move. Now to find out why.

In addition, the long-term fuel trims started moving down to 10.8 from 11.72, then both returned to 11.72%. The short-terms are ranging like the did in my last report, and there is no fault code set. I drove another 32 miles today, with three stops, so that's better than usual, where I get the P0171 +P0174 codes on every 3 stops. Now, it's been 8 stops since the SES light illuminated.
__________________
'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")
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  #55  
Old 05-10-2022, 06:36 PM
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"small" Schrader adapter hose arrived

The adapter hose I ordered just arrived; it fits the hose attached to my gauge, and the "small" Schrader fitting on the other end screws perfectly onto my test valve, which the other fitting (M8x1) just barely fits onto (about 1.75 turns).
Name:  new accessory hose with small Schrader fitting.JPG
Views: 81
Size:  209.7 KB

In the worst case scenario, now, the new fitting might be a bit too large/loose to tightly fit on the test Schrader, but the extra-thick Teflon tape I bought (like andrewwynn suggested) should fill the gap, and make up for the slight mismatch of thread pitch.

I'll try it tomorrow, because with the wife out of town (again), I've got to feed & water
  • 2 house-cats,
  • 12 outside-cats (feral, but tame) ,
  • my wife's 4 "prized" chickens (and shoo away the neighbor's roosters),
  • my wife's new to her, 25-year-old "CAG" (an "African Grey Parrot"),
  • and our 4 house-dogs

It takes me awhile, as each group has a specialized diet and routine, that I usually share with the wife.
__________________
'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")
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  #56  
Old 05-11-2022, 03:53 PM
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fuel pump pressure test, round one

Quote:
Originally Posted by workingonit View Post
The adapter hose I ordered just arrived; it fits the hose attached to my gauge, and the "small" Schrader fitting on the other end screws perfectly onto my test valve, which the other fitting (M8x1) just barely fits onto (about 1.75 turns).
Attachment 82142

In the worst case scenario, now, the new fitting might be a bit too large/loose to tightly fit on the test Schrader, but the extra-thick Teflon tape I bought (like andrewwynn suggested) should fill the gap, and make up for the slight mismatch of thread pitch....
I tried the new fitting, using several layers of teflon tape, but it never gets completely tight. I don't know if the Schrader valve is supposed to spin on the rail (no leaks using the tape), but I'm not tightening it further, if it is spinning. I detect no leakage, and the pressure seems to hold steady at two points.
Name:  pressure readings, on  and off.JPG
Views: 52
Size:  167.6 KB

With the pump on, engine running (at idle), the gauge's needle holds steady (with a barely noticeable vibration) at 49 psi, and when the engine is turned off, it drops to 42 psi, and stays there for ten minutes. Also, if I just prime the fuel rail, without any pressure beforehand, it also only gets to 42 psi.

I'm reporting this, as it just happened, while I give it time to see if the pressure drains away any, in a longer time period (I came inside to get some towels).

From what I read, 50 psi should be OK (I'm allowing for the Chinese gauge to be a psi or two off), and my engine has never had problems starting (except when my key cover interfered with the EWS ship distance), nor misfires. It runs smoothly, at all rpms.
__________________
'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")
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  #57  
Old 05-11-2022, 04:32 PM
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Went back outside and the pressure remained at 42 psi. But when I restarted the engine, the pressure reading dropped to 30 psi then very slowly climbed to 42 psi again.

Repeated same test procedure, same 42 down to 30 and back to 42. I figured something went amiss so I disconnected and found that the O-ring inside the part that screws onto the Schrader on the rail had dissolved into pieces. I've been trying to get it out of the new hose.

I'll wrap even more Teflon tape on the Schrader this time, and hope it'll seal good enough to test without leaks. And that the dissolved O-ring didn't foul up the gauge.



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__________________
'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")
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  #58  
Old 05-11-2022, 05:07 PM
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I'm done for today. The dissolved O-ring plugged up the new hose with the adapter that works. I couldn't get Teflon tape to totally seal the old connector that was in an earlier post it but sealed it good enough to read 49 psi again, with engine on.

Still had 42 on pump alone. But since it wasn't a good seal, the pressure soon leaked away.

I had to remove the Schrader valve core to use that fitting, so I hope it'll go back in tightly. One thing after another.

I'll get some viton O-rings (for any/all fuel connections anywhere) and try to clean out the new fouled hose I just got. Otherwise, it was a waste of money.

Is 49-50 psi running pressure OK? The pump alone's pressure of 42 psi concerns me, though. I should drop the shield underneath and look at everything around the "new" FPR assembly. Something isn't as it should be.

Sent from my SM-G955U using Xoutpost.com mobile app
__________________
'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")

Last edited by workingonit; 05-11-2022 at 05:39 PM.
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  #59  
Old 05-11-2022, 06:20 PM
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50 psi looks good to me...
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  #60  
Old 05-11-2022, 11:50 PM
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https://www.e46fanatics.com/threads/...-ltft.1295008/

I just found the above topic on e46 fanatics forum. It sounds like my lean code problem, his about 8-12% high long-term fuel trims (mine are consistently 10-12% high) and 48 psi fuel pressure ( mine's 49 psi).

He replaced his fuel pressure regulator:

Quote:
"Out China fuel filter/Regulator, in German Malhe . Fuel trims better. Fuel pressure 52 psi"
and his long-term fuel trim readings improved.

Later on, he also changed his MAF, and ordered a new oil cap, too, to bring the long-term fuel trims to normal:
Quote:
"Found last problem.

After changing MAF trim reduced to 4-5 %. Then I noticed oil around fill cap. Checked cap and found gasket with a preset grooved from age. Reversed gasket and ltft reduced to 0-2%. Have new cap on order"
I've already changed my cap & seal, so maybe a new MAF is in my future too.














Sent from my SM-G955U using Xoutpost.com mobile app
__________________
'01 BMW X5-E53 3.0i (born 7/13/01)
topas-blau, Leder-Montana grau,
my new favorite project car

Plus four GM vehicles: 2 Daily Drivers, and 2 modified trucks (for hauling & camping):
3 Chevys:
'09 HHR Panel LS 2.2L,
'08 Cobalt Coupe LS 2.2L,
'04 Silverado 2500HD WT Reg. Cab
+ a '98 GMC Sierra 1500 Ext. Cab

- and 20 others, now gone, that I've had over the last 58 years (not counting the stillborn "1965 ChevyII altered/gasser project")

Last edited by workingonit; 05-12-2022 at 10:21 AM. Reason: fixing quotes
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