Bad Starts (video)

Nedim · 07-02-2010, 06:47 PM

Ive posted this in general forum but i decided to repost to 335i engineRecently my car has been starting up weird, Doing weird rev bouncing. I start it up and it looks like im playing the gas pedal. I had my spark plugs and injectors replaced a couple months ago. Anyone know the reason for this?

forza1976 · 07-02-2010, 06:55 PM

hpfp... man that android video is pretty hard to watch.

Nedim · 07-02-2010, 06:58 PM

Quote:

Originally Posted by forza1976

hpfp... man that android video is pretty hard to watch.

HPFP for sure? I am not getting any codes. and sorry about the video lol

forza1976 · 07-02-2010, 07:00 PM

Quote:

Originally Posted by Nedim

HPFP for sure? I am not getting any codes. and sorry about the video lol

Well that would be my guess, but I'm sure others will weigh in.

Just busting your chops on the vid. My new iphone is the same way

Patrys@BimmerTech · 07-02-2010, 07:07 PM

Mine does the same sometimes and shakes a bit as well. It looks like the HPFP.
In my case the revs go up to almost 2k then down to 400-500 and I can feel the car shaking and then again up to 1,5k and then slowly down to 600.
But it's not a daily routine, just from time to time, usually in the morning after pushing the car really hard the night before.

I had some HPFP codes a month ago and after updating the software no more codes but it doesn't start as nice as it used to do when I bought it.

Nedim · 07-02-2010, 07:13 PM

Quote:

Originally Posted by Patrys

Mine does the same sometimes and shakes a bit as well. It looks like the HPFP.
In my case the revs go up to almost 2k then down to 400-500 and I can feel the car shaking and then again up to 1,5k and then slowly down to 600.
But it's not a daily routine, just from time to time, usually in the morning after pushing the car really hard the night before.

I had some HPFP codes a month ago and after updating the software no more codes but it doesn't start as nice as it used to do when I bought it.

Yea man, my car acts just like yours. Was so smooth when i bought it. Except, i dont have push my car to start up bad. It just does it in the mornings, not always though.

Nedim · 07-03-2010, 10:26 AM

Bump

TwnTrboCAT1212 · 07-03-2010, 01:14 PM

Yep, HPFP, do doubt. Just wait, it will get worse from there and then maybe will throw enough codes for a replacement, but in the meantime you're gonna have to live with it. I just had my 3rd pump replaced yesterday and all last week my Rpm's got more and more erratic at idle to the point where 2 days ago when i started the car in the morning, RPM's jumped to 3,500 and back down to 300! on it's own then back up to 2,000 then down to 200! which then the car spuddered, engine bounced around under the hood violently and the car stalled. NO CEL don't ask me HOW but had it brought to BMW and they instantly faulted the HPFP and replaced it in a day service. Cars good as new, For now...sigh. Good Luck!

~Chris~

Mike@N54Tuning.com · 07-03-2010, 01:17 PM

I have a customer who is experiencing the exact same thing. Car was scanned an no codes but he is dealering it on monday so will let you know what they do. I am pretty sure its the fuel pump on the way out.

Mike

Nedim · 07-03-2010, 01:54 PM

Ok, thanks for the replies!

newbieman78 · 07-03-2010, 07:16 PM

thats how it all starts brotha...story of our lives

lawwailok · 07-04-2010, 04:37 PM

I've been having that problem past couple days, this morning I also got a half engine light....FML, what a good way to ruin my July 4th morning....
I'll scan to see if any codes later tonight

cstavaru · 07-04-2010, 05:01 PM

It's the HPFP not providing enough fuel pressure and forcing the ECU to rev the engine a bit more to compensate. At least I think so.

My car did the same and showed a lack of power without codes, until finally I got a CEL while driving hard and could replace the pump

ss134 · 07-04-2010, 05:47 PM

My dealer replaced my HPFP without the car throwing any codes. You should not have to wait for the pump to fail before getting it replaced....this is a safety issue and the dealers are WELL aware of this problem. Your really do not want if to finally fail at 80mph on the motorway.

Take it to your dealer and demand a new HPFP.

badass335 · 07-04-2010, 06:11 PM

Quote:

Originally Posted by Mike@N54Tuning.com

I have a customer who is experiencing the exact same thing. Car was scanned an no codes but he is dealering it on monday so will let you know what they do. I am pretty sure its the fuel pump on the way out.

Mike

Very curious to know what happened, Mike. I'm in the same boat here. My misfires ARE related to the pump failing. When i start my car, sometimes, it sutters on and sometimes, it's just fine. I get misfires on the high rpm's 5-7 times out of 10. At idle, the car will buck BUT no codes...... (except misfires) Pain in the ass...

Nedim · 07-04-2010, 07:17 PM

Quote:

Originally Posted by ss134

My dealer replaced my HPFP without the car throwing any codes. You should not have to wait for the pump to fail before getting it replaced....this is a safety issue and the dealers are WELL aware of this problem. Your really do not want if to finally fail at 80mph on the motorway.

Take it to your dealer and demand a new HPFP.

Will do on tuesday. I already told them this once and they said that they dont know whats wrong with it because its not throwing codes...

markham335i · 07-05-2010, 05:51 PM

Quote:

Originally Posted by Mike@N54Tuning.com

I have a customer who is experiencing the exact same thing. Car was scanned an no codes but he is dealering it on monday so will let you know what they do. I am pretty sure its the fuel pump on the way out.

Mike

yup thats me... i have the same issue and i just brought the car in today.. im sure we have the same problem.. sometimes theres a long crank (over 3-4seconds) and the rev spikes are rather annoying and scary

... anyway i took a video and showed it to my SA and he said its most likely the fuel pump however they have to be able to mimic the issue we are having... then take some measurements and calculations of the fuel pump and send them to bmw for approval blahblahblah... he assured me as long as they can reproduce the problem infront of there eyes they will take care of it..

p.s iv had this problem since i got the juicebox put in my car (how long ago was that mike hahah i cant remember) id save over 15k kms

Choolgooz · 07-05-2010, 06:59 PM

Similar thing on my car, it actually threw a code one time. Cyl 1+3 misfire. HPFP was replaced 10k ago.. dont think thats it. Does it happen on warm starts too? I find it calms down after the car gets going.. doesnt always throw codes or CEL either. Got a dealer visit soon for this and other things

.

markham335i · 07-05-2010, 09:23 PM

yes it does happen when its hot.. it was 42degress Celsius today in toronto and my car cranked on start up (after not starting it for a few hours) for 5seconds... and after that or any time if i were to start the car and turn it off around 3 times consecutively the problem disappears ...

lawwailok · 07-06-2010, 01:41 AM

reading my post #12, i scanned my car and i got 29F2, i assume that is hpfp code.... this morning, i started it up again, it bogged, idle jumped like roller coaster... once the car get going, it was fine... but since i'm 24 miles away from dealership, i had bmw assist and tow my car in this afternoon... hopefully i will hear from the SA tomorrow evening.
and a side note, that is a 881 pump with only 8 months, 7000 miles only

markham335i · 07-06-2010, 08:48 PM

u can get a hpfp at any mileage.. i just got mine at around 55k km

sucks...

markham335i · 07-07-2010, 01:16 PM

Just got a call from my sa...he said the problem with the high revs at start up is because of the air conditioning.. I think this is total bullshit I'm going tonight afterwork to talk to them.. I showed him a video before he took the car in and he said it was probly the hfpf and today its the air conditioning.. He also said he started 3 other cars and they sound the same.. Ugh so frustrating.. There's no way the ac is causing this lol

07-02-2010, 06:47 PM	#1
Nedim Captain 72 Rep 716 Posts Drives: 2007 BMW 335i Join Date: Mar 2010 Location: Des Moines, IA iTrader: (4)	Bad Starts (video) Ive posted this in general forum but i decided to repost to 335i engineRecently my car has been starting up weird, Doing weird rev bouncing. I start it up and it looks like im playing the gas pedal. I had my spark plugs and injectors replaced a couple months ago. Anyone know the reason for this?
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07-02-2010, 06:55 PM	#2
forza1976 Major General 3514 Rep 6,626 Posts Drives: BMW Join Date: Aug 2007 Location: 49456 iTrader: (13) Garage List 2022 BMW M3X [9.50]	hpfp... man that android video is pretty hard to watch.
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07-02-2010, 07:07 PM	#5
Patrys@BimmerTech Banned 630 Rep 2,013 Posts Drives: 2007 E92 335i Join Date: Feb 2009 Location: Warsaw/Poland iTrader: (7)	Mine does the same sometimes and shakes a bit as well. It looks like the HPFP. In my case the revs go up to almost 2k then down to 400-500 and I can feel the car shaking and then again up to 1,5k and then slowly down to 600. But it's not a daily routine, just from time to time, usually in the morning after pushing the car really hard the night before. I had some HPFP codes a month ago and after updating the software no more codes but it doesn't start as nice as it used to do when I bought it.
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07-03-2010, 10:26 AM	#7
Nedim Captain 72 Rep 716 Posts Drives: 2007 BMW 335i Join Date: Mar 2010 Location: Des Moines, IA iTrader: (4)	Bump
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07-03-2010, 01:14 PM	#8
TwnTrboCAT1212 The Moose Whisperer 22 Rep 406 Posts Drives: '08 E92 GIAC S1 335xi 6-MT Join Date: Oct 2008 Location: Massachusetts iTrader: (2)	Yep, HPFP, do doubt. Just wait, it will get worse from there and then maybe will throw enough codes for a replacement, but in the meantime you're gonna have to live with it. I just had my 3rd pump replaced yesterday and all last week my Rpm's got more and more erratic at idle to the point where 2 days ago when i started the car in the morning, RPM's jumped to 3,500 and back down to 300! on it's own then back up to 2,000 then down to 200! which then the car spuddered, engine bounced around under the hood violently and the car stalled. NO CEL don't ask me HOW but had it brought to BMW and they instantly faulted the HPFP and replaced it in a day service. Cars good as new, For now...sigh. Good Luck! ~Chris~
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07-03-2010, 01:17 PM	#9
Mike@N54Tuning.com Joint Chiefs of Staff 5037 Rep 116,174 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	I have a customer who is experiencing the exact same thing. Car was scanned an no codes but he is dealering it on monday so will let you know what they do. I am pretty sure its the fuel pump on the way out. Mike
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07-03-2010, 01:54 PM	#10
Nedim Captain 72 Rep 716 Posts Drives: 2007 BMW 335i Join Date: Mar 2010 Location: Des Moines, IA iTrader: (4)	Ok, thanks for the replies!
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07-03-2010, 07:16 PM	#11
newbieman78 Second Lieutenant 21 Rep 274 Posts Drives: bmw 335i Join Date: Nov 2008 Location: Las Vegas iTrader: (0)	thats how it all starts brotha...story of our lives __________________ [SIGPIC][/SIGPIC]
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07-04-2010, 04:37 PM	#12
lawwailok Lieutenant Colonel 153 Rep 1,922 Posts Drives: E90 335i, E70 X5 Join Date: Aug 2009 Location: Sacramento, CA iTrader: (18) Garage List 2007 E90 335i [8.00] 2009 E70 xDrive30i [0.00]	I've been having that problem past couple days, this morning I also got a half engine light....FML, what a good way to ruin my July 4th morning.... I'll scan to see if any codes later tonight __________________ -eric E90 335i TiAg STOCK see my garage for mod list.. E70 X5 SGM try to stay stock :/
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07-04-2010, 05:01 PM	#13
cstavaru Brigadier General 328 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	It's the HPFP not providing enough fuel pressure and forcing the ECU to rev the engine a bit more to compensate. At least I think so. My car did the same and showed a lack of power without codes, until finally I got a CEL while driving hard and could replace the pump __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \|
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07-04-2010, 05:47 PM	#14
ss134 Brigadier General 233 Rep 3,899 Posts Drives: F80 M3 Join Date: Feb 2009 Location: Germany/UK iTrader: (1)	My dealer replaced my HPFP without the car throwing any codes. You should not have to wait for the pump to fail before getting it replaced....this is a safety issue and the dealers are WELL aware of this problem. Your really do not want if to finally fail at 80mph on the motorway. Take it to your dealer and demand a new HPFP. __________________ 2014 AW F80 M3 DCT 2011 AW E90 M3 DCT - Sold 2010 JZB E90 M3 DCT - Sold 2009 6MT E90 LCI 335i M -Sport - Sold
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07-05-2010, 06:59 PM	#18
Choolgooz Lieutenant 8 Rep 450 Posts Drives: 08 335i coupe Join Date: Dec 2007 Location: Bay Area iTrader: (3)	Similar thing on my car, it actually threw a code one time. Cyl 1+3 misfire. HPFP was replaced 10k ago.. dont think thats it. Does it happen on warm starts too? I find it calms down after the car gets going.. doesnt always throw codes or CEL either. Got a dealer visit soon for this and other things . __________________
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07-05-2010, 09:23 PM	#19
markham335i Lieutenant 61 Rep 540 Posts Drives: 07 335i Join Date: May 2010 Location: Toronto, Markham iTrader: (0)	yes it does happen when its hot.. it was 42degress Celsius today in toronto and my car cranked on start up (after not starting it for a few hours) for 5seconds... and after that or any time if i were to start the car and turn it off around 3 times consecutively the problem disappears ... __________________ Upgrades: <Cobb V3, DCI, BMS downpipes, ER charge pipe, Forge DV, bbs ch-r, 30%tint all around, bmw performance exhaust, umnitza V4 angel eyes>.....Next upgrades (I would like):intercooler, BBK, turbo upgrade....etc....
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07-06-2010, 01:41 AM	#20
lawwailok Lieutenant Colonel 153 Rep 1,922 Posts Drives: E90 335i, E70 X5 Join Date: Aug 2009 Location: Sacramento, CA iTrader: (18) Garage List 2007 E90 335i [8.00] 2009 E70 xDrive30i [0.00]	reading my post #12, i scanned my car and i got 29F2, i assume that is hpfp code.... this morning, i started it up again, it bogged, idle jumped like roller coaster... once the car get going, it was fine... but since i'm 24 miles away from dealership, i had bmw assist and tow my car in this afternoon... hopefully i will hear from the SA tomorrow evening. and a side note, that is a 881 pump with only 8 months, 7000 miles only __________________ -eric E90 335i TiAg STOCK see my garage for mod list.. E70 X5 SGM try to stay stock :/
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07-06-2010, 08:48 PM	#21
markham335i Lieutenant 61 Rep 540 Posts Drives: 07 335i Join Date: May 2010 Location: Toronto, Markham iTrader: (0)	u can get a hpfp at any mileage.. i just got mine at around 55k km sucks... __________________ Upgrades: <Cobb V3, DCI, BMS downpipes, ER charge pipe, Forge DV, bbs ch-r, 30%tint all around, bmw performance exhaust, umnitza V4 angel eyes>.....Next upgrades (I would like):intercooler, BBK, turbo upgrade....etc....
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07-07-2010, 01:16 PM	#22
markham335i Lieutenant 61 Rep 540 Posts Drives: 07 335i Join Date: May 2010 Location: Toronto, Markham iTrader: (0)	Just got a call from my sa...he said the problem with the high revs at start up is because of the air conditioning.. I think this is total bullshit I'm going tonight afterwork to talk to them.. I showed him a video before he took the car in and he said it was probly the hfpf and today its the air conditioning.. He also said he started 3 other cars and they sound the same.. Ugh so frustrating.. There's no way the ac is causing this lol __________________ Upgrades: <Cobb V3, DCI, BMS downpipes, ER charge pipe, Forge DV, bbs ch-r, 30%tint all around, bmw performance exhaust, umnitza V4 angel eyes>.....Next upgrades (I would like):intercooler, BBK, turbo upgrade....etc....
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