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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Feb-08-2018, 10:56:55 PM   #71
rovert604
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Default Money shift

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Originally Posted by Prevailm View Post

I was doing some reading last night and noticed some people mentioning issues with walboros starving under a quarter tank. (Right where I was at) so I decided to run by the gas station and fill up a jug, poured it in the car. Plugged the pump back in, fired right up, all the codes gone. Drives perfectly fine to redline. So Iím going to say problem solved, and I guess the motor is fine. Iíll do a compression test this weekend for piece of mind, but Iím thinking I saved it before it over revved too high. Iíll be purchasing a new OEM pump, and getting rid of this walboro soon as well.


You might also want to open up the other side of the tank...the suction jet pump which keeps leftover fuel going to the pump side sometimes comes loose so vacuum isn't strong enough anymore to pull the fuel over to the fuel pump side.



I've had it happen twice on me at 1/4 tank. One the engine ran dry with 1/4 left so once I put a jerry can of fuel in, the car started up no problem. I checked the secret OBC to see fuel levels and all the gas was on the suction jet pump side and not moving over. The other time I was just going in for gas on the interstate and at 1/4 engine started misfiring. I turned on secret OBC and saw all my fuel on the opposite side of the pump. I made sure the coast was clear and did an aggressive swerve to slosh the fuel back over to the pump side and I was good to go to fill up my car at the next exit and address the suction jet pump when I got home. Sometimes the plastic clip breaks but in my case it just gets loose and starts to work itself down. Every 6 months when I'm near 1/4 tank I just check my right/left fuel tank levels in the OBC so make sure the suction jet pump is still connected. LOL


This is underneath the left side tank. That whole black plastic connector loosens and falls down.

[IMG]
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Old Thu, Feb-08-2018, 11:50:28 PM   #72
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Default Re: Money shift

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Originally Posted by ThunderMoose View Post
I have done 10,200 and survived


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I hit 9k on a botched angry driving downshift. I thought I was done for. I think it blew my tranny seal that wasnít seated properly to begin with.
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Old Fri, Feb-09-2018, 12:03:12 AM   #73
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Default Re: Money shift

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Originally Posted by rovert604 View Post
... I turned on secret OBC and saw all my fuel on the opposite side of the pump....
Link to secret OBC magic please?
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Old Fri, Feb-09-2018, 12:22:25 AM   #74
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Default Re: Money shift

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Link to secret OBC magic please?
http://www.bmw-driver.net/forum/show...66&postcount=1
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Old Fri, Feb-09-2018, 02:20:01 AM   #75
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Default Re: Money shift

Excellent photo. Always wondered which clip people were saying broke. I checked this when I had the walboro and all seemed fine. I think it was the pump (or me that retrofit the pump into the oe housing to begin with) that caused the car to run dry at 1/4tank
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Old Sat, Feb-10-2018, 10:53:37 PM   #76
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Default Re: Money shift

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Thanks!
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Discussing Money shift in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)