People that have failed fuel pumps...how does ur car run after u got it back?

Spool · 06-17-2007, 09:11 PM

Well title couldn't be clearer so...

Mine ran like crap...maybe cause the old fuel that was sitting inside the tank for a month or something....after i drained it down i refilled it with Chevron and the car was still running slow

it lags more than before...i'm gonna go through a couple more tanks and if it's still this slow...then we'll go from there

RiXst3r · 06-17-2007, 09:34 PM

mine ran like it had bad gas in it... after a few tanks, it was back to normal. I think it actually did have bad gas in it... they filled up the tank for me with some mystery gas from their reserves.... never again.

NaViT · 06-17-2007, 09:34 PM

yea they have you 79 octane gas

wj4 · 06-17-2007, 11:21 PM

Very interesting symptom. Please keep us posted.

thealbert · 06-18-2007, 09:12 AM

I noticed more lag on my car too but its not very bad, my car still pulls like crazy! And I noticed that my car ran a little rough on idle. I've asked around and apparently some people have been experiencing this since day 1 but I only noticed it after I got the new fuel pump.

dustman · 06-18-2007, 10:36 AM

Odd that you bring this thread up..got my car back on Saturday morning and have been thinking something is wrong as 1) it doesnt shift down to the appropriate gear as before [ie should drop to 3rd, but goes to 5th], 2) the car feels slow/sluggish around town. Once the rpms are up it's ok, but the instant throttle response is very much gone. I will be calling my dealer today.
I put a fresh tank of 91oct in too.

Spool · 06-18-2007, 11:00 AM

im thinking the car has been sitting for so long that the gas might be going bad...give it a couple more tanks...im thinking i might bring it back to the dealership after a couple more gas tanks...cause this car is driving like ass...nothing like it was before the pump died..

dustman · 06-18-2007, 12:05 PM

I agree, and called BMW NA again and let the dealer know this issue has not been resolved. I dont like driving this 325 as is...and yes, I said 325 becuase that is what it feels like.

Maestro · 06-18-2007, 01:16 PM

Oh, this is not good to hear, I wonder if they made some sort of change to how the pump works to minimize the stresses on the pump.

Or it could be that it is a side affect of going into limp mode, it could be that the computer averages information that it obtains over time and adjusts the performance accordingly. So it might take pushing on the car real hard to blow out all the old data and create a new average.

totoro · 06-18-2007, 01:44 PM

Mine did that too. I used one of these after all the old gas was gone & before the next fill-up & then it was fine:

http://accessories.bmwusa.com/ItemVi...&productId=692

Also, in my case, updating to PROGMAN v25.02.00 made the engine run better.

smoothoperator · 06-18-2007, 02:16 PM

my fuel pump went bad the day i got it back, it was ok for the first 100 miles of driving but then it began going into limp mode with the reduced engine light flashing. i turned the car on and off and it did it again... the car was not doing well at all

Potty_Pants · 06-18-2007, 03:08 PM

one of the posts here may have hit a possible fix...

clear the ECU and it "should" reset back to default stats.

gl everybody

ppp

Spool · 06-18-2007, 03:10 PM

Quote:

Originally Posted by Potty_Pants

one of the posts here may have hit a possible fix...

clear the ECU and it "should" reset back to default stats.

gl everybody

ppp

Just unplug the battery for a couple hours?

zenmaster · 06-18-2007, 07:02 PM

Considering that by BMW advertising lower HP numbers than actually produced in a new car, they can effectively do any type repair work that would lower horsepower down to that advertised level, and not have to address any subsequent low-HP complaints. They're basically giving themselves about a 20-30HP leeway.

ulises 335i · 06-18-2007, 07:09 PM

why dont you guys try 2-3 gallons of 100 oct. mixed with 91?
mabe that will help

iatacs19 · 06-18-2007, 07:14 PM

Quote:

Originally Posted by Spool

Just unplug the battery for a couple hours?

10-15min should do it.

Spool · 06-18-2007, 11:13 PM

UPDATE: READ ON!

Today im on my 3rd tank of gas since getting my car back last week...i didn't fill up all the way..just half way...it's 20 cents cheaper where i work...anyways..

The car seems to be back to normal now, each gear doesn't lag as much, flooring it in first gear i shred the rear tires all the way to 6000K RPM...

car is running normal for now, i'm just thinking since they replaced the pump, they had to reprogammed the car, and cleared everything...so a couple days of hard driving, and some new gas in the car...it's back to it's normal self..

will update again tomorrow when i get to work...

06-17-2007, 09:11 PM	#1
Spool ****** 558 Rep 6,169 Posts Drives: A few Join Date: Apr 2007 Location: DC Metro iTrader: (24)	People that have failed fuel pumps...how does ur car run after u got it back? Well title couldn't be clearer so... Mine ran like crap...maybe cause the old fuel that was sitting inside the tank for a month or something....after i drained it down i refilled it with Chevron and the car was still running slow it lags more than before...i'm gonna go through a couple more tanks and if it's still this slow...then we'll go from there __________________ MKIV 6spd 1000hp Club
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06-17-2007, 09:34 PM	#2
RiXst3r 274 Rep 6,510 Posts Drives: M235i Join Date: Sep 2006 Location: Ohio iTrader: (14)	mine ran like it had bad gas in it... after a few tanks, it was back to normal. I think it actually did have bad gas in it... they filled up the tank for me with some mystery gas from their reserves.... never again.
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06-17-2007, 09:34 PM	#3
NaViT Banned 69 Rep 3,404 Posts Drives: 04 M3/E92 335i Join Date: Sep 2006 Location: N.Florida iTrader: (11)	yea they have you 79 octane gas
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06-17-2007, 11:21 PM	#4
wj4 Major General 335 Rep 7,719 Posts Drives: E90 manual 335i Join Date: Nov 2006 Location: Burbank, CA iTrader: (8)	Very interesting symptom. Please keep us posted.
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06-18-2007, 09:12 AM	#5
thealbert Lieutenant 32 Rep 420 Posts Drives: G20 M340i xDrive Join Date: Feb 2007 Location: Home Sweet Home iTrader: (0)	I noticed more lag on my car too but its not very bad, my car still pulls like crazy! And I noticed that my car ran a little rough on idle. I've asked around and apparently some people have been experiencing this since day 1 but I only noticed it after I got the new fuel pump.
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06-18-2007, 10:36 AM	#6
dustman Private 5 Rep 97 Posts Drives: '13 Ferrari 458 Italia Join Date: Jan 2007 Location: So Cal iTrader: (0)	Odd that you bring this thread up..got my car back on Saturday morning and have been thinking something is wrong as 1) it doesnt shift down to the appropriate gear as before [ie should drop to 3rd, but goes to 5th], 2) the car feels slow/sluggish around town. Once the rpms are up it's ok, but the instant throttle response is very much gone. I will be calling my dealer today. I put a fresh tank of 91oct in too.
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06-18-2007, 11:00 AM	#7
Spool ****** 558 Rep 6,169 Posts Drives: A few Join Date: Apr 2007 Location: DC Metro iTrader: (24)	im thinking the car has been sitting for so long that the gas might be going bad...give it a couple more tanks...im thinking i might bring it back to the dealership after a couple more gas tanks...cause this car is driving like ass...nothing like it was before the pump died.. __________________ MKIV 6spd 1000hp Club
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06-18-2007, 12:05 PM	#8
dustman Private 5 Rep 97 Posts Drives: '13 Ferrari 458 Italia Join Date: Jan 2007 Location: So Cal iTrader: (0)	I agree, and called BMW NA again and let the dealer know this issue has not been resolved. I dont like driving this 325 as is...and yes, I said 325 becuase that is what it feels like.
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06-18-2007, 01:16 PM	#9
Maestro Major 1013 Rep 1,268 Posts Drives: 2007 335i Sedan, 2021 X3 Join Date: Nov 2006 Location: Philadelphia iTrader: (0)	Oh, this is not good to hear, I wonder if they made some sort of change to how the pump works to minimize the stresses on the pump. Or it could be that it is a side affect of going into limp mode, it could be that the computer averages information that it obtains over time and adjusts the performance accordingly. So it might take pushing on the car real hard to blow out all the old data and create a new average.
	Appreciate 0 Quote

06-18-2007, 01:44 PM	#10
totoro Private First Class 21 Rep 122 Posts Drives: 335i coupe Join Date: Jul 2006 Location: CA iTrader: (0)	Mine did that too. I used one of these after all the old gas was gone & before the next fill-up & then it was fine: http://accessories.bmwusa.com/ItemVi...&productId=692 Also, in my case, updating to PROGMAN v25.02.00 made the engine run better.
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06-18-2007, 02:16 PM	#11
smoothoperator Registered 0 Rep 4 Posts Drives: BMW 335ci Join Date: Jun 2007 Location: Los Angeles iTrader: (0)	my fuel pump went bad the day i got it back, it was ok for the first 100 miles of driving but then it began going into limp mode with the reduced engine light flashing. i turned the car on and off and it did it again... the car was not doing well at all
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06-18-2007, 03:08 PM	#12
Potty_Pants Colonel 66 Rep 2,189 Posts Drives: 2012 Genesis Sedan Rspec Join Date: Apr 2007 Location: Southern NJ iTrader: (0)	one of the posts here may have hit a possible fix... clear the ECU and it "should" reset back to default stats. gl everybody ppp __________________ Olds Starfire > Chevy Malibu > Isuzu I-mark RS & Honda Magna 500 > Grand Am GT & YSR50 > Nissan Maxima & Ninja 750 > X-Wife > Hyundai Excel > Honda Prelude > Honda Accord > Honda Prelude & Ninja 250> Infiniti G35 > E90 335i > Hyundai Genesis Rspec, Hyunadai Sonata > Kia Sorento > Honda CRV-EX
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06-18-2007, 07:02 PM	#14
zenmaster Brigadier General 1577 Rep 3,888 Posts Drives: '17 M2 Join Date: Mar 2007 Location: Atlanta iTrader: (1)	Considering that by BMW advertising lower HP numbers than actually produced in a new car, they can effectively do any type repair work that would lower horsepower down to that advertised level, and not have to address any subsequent low-HP complaints. They're basically giving themselves about a 20-30HP leeway.
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06-18-2007, 07:09 PM	#15
ulises 335i these cars waste alot of fucking gas 51 Rep 992 Posts Drives: 335i montego blue Join Date: Jan 2007 Location: el monte, c.a. iTrader: (3)	why dont you guys try 2-3 gallons of 100 oct. mixed with 91? mabe that will help __________________ e90 335i sport- (with following mods) sstt, afe intake, custom zoomers exhaust , dimisa 4" tips, m6 reps , painted oem front splitter, carbon fiber grill.
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06-18-2007, 11:13 PM	#17
Spool ****** 558 Rep 6,169 Posts Drives: A few Join Date: Apr 2007 Location: DC Metro iTrader: (24)	UPDATE: READ ON! Today im on my 3rd tank of gas since getting my car back last week...i didn't fill up all the way..just half way...it's 20 cents cheaper where i work...anyways.. The car seems to be back to normal now, each gear doesn't lag as much, flooring it in first gear i shred the rear tires all the way to 6000K RPM... car is running normal for now, i'm just thinking since they replaced the pump, they had to reprogammed the car, and cleared everything...so a couple days of hard driving, and some new gas in the car...it's back to it's normal self.. will update again tomorrow when i get to work... __________________ MKIV 6spd 1000hp Club
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