Smell of fuel and crazy RPM needle

Comet · 02-04-2010, 12:58 PM

Hey guys
I'm hoping this isn't an HPFP problem.

I went to turn on my car, and everything was fine.
it took a bit of time to start, but I figured, hey it is cold.. no biggie
then the car starts rumbling and shaking and my gear shift is vibrating like mad.
I look at my RPM gauge and the needle is at 500RPM, I rev and I start smelling fuel, the reduced power sign comes on (half engine)
I turn it off, turn it back on, this time the RPM goes up to 2,000 by itself, drops back to 500, shakes and gives me the same error.
I try again, and I reverse and I see no sign of fuel but I smell it, I put it back in my spot, pop the hood, and the engine looks normal but the car is still rumbling and the RPM needle is at 500 and the engine malfunction light is still on.

is it HPFP or something else?

lawwailok · 02-04-2010, 01:42 PM

scan with the BT and see what codes it is throwing... hard to tell.........
too many factors can create that problems... HPFP, injectors......

Comet · 02-04-2010, 01:56 PM

thx for the reply

is it safe to drive? or should I tow it to the dealer? (I don't have a scanner)

golf4501 · 02-04-2010, 02:38 PM

Quote:

Originally Posted by Comet

thx for the reply

is it safe to drive? or should I tow it to the dealer? (I don't have a scanner)

I had the same thing happen to my car. In my case they had upgraded the software incorrectly (forgot to initialize adaptation values). At least mine acted up about 1 mile from the dealer so I stumbled in there.

ibeclueless · 02-04-2010, 03:38 PM

take it to the dealer and have them check it out

ImolaZHP · 02-04-2010, 03:48 PM

That's the injector problem.

I had it in the beginning of the Winter. You probably saw lots of white smoke came out from the exhaust also. The car shook like it was going to stall. "Engine Service" light came up too.

This problem went away after a couple of restart. The problem came more and more often every morning until the day I got my appointment to bring the car to the dealership.

Eventually it injectors on one bank of the cylinders where replaced.

Comet · 02-04-2010, 04:43 PM

I used to see a lot of white smoke
not this time though...
I thought it was just normal due to my catless downpipes

should I tow it or drive it there?

lawwailok · 02-04-2010, 04:58 PM

last time, well about a month ago, ALL my injectors went bad, i couldn't drive it there, once i started the car, it bogged and struggling to calm down the idle... ended up i towed mine in using BMW assist, lucky i made it back home when it happened.

FoShizzle · 02-04-2010, 06:47 PM

I vote injectors. Sounds like what happened to me.
If you have bmw assist, just call em up and have them tow it.

Comet · 02-04-2010, 09:34 PM

I'll have it towed then
thanks for the replies guys

any idea how much this is going to set me back

02-04-2010, 12:58 PM	#1
Comet Troll Harder 395 Rep 596 Posts Drives: 997 GT3, 997 4 GTS, X6M Join Date: May 2007 Location: Montreal, Beirut iTrader: (0) Garage List 2011 Porsche GT3 [8.00] 2012 Porsche 4 GTS [5.34]	Smell of fuel and crazy RPM needle Hey guys I'm hoping this isn't an HPFP problem. I went to turn on my car, and everything was fine. it took a bit of time to start, but I figured, hey it is cold.. no biggie then the car starts rumbling and shaking and my gear shift is vibrating like mad. I look at my RPM gauge and the needle is at 500RPM, I rev and I start smelling fuel, the reduced power sign comes on (half engine) I turn it off, turn it back on, this time the RPM goes up to 2,000 by itself, drops back to 500, shakes and gives me the same error. I try again, and I reverse and I see no sign of fuel but I smell it, I put it back in my spot, pop the hood, and the engine looks normal but the car is still rumbling and the RPM needle is at 500 and the engine malfunction light is still on. is it HPFP or something else? __________________
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02-04-2010, 01:42 PM	#2
lawwailok Lieutenant Colonel 146 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]	scan with the BT and see what codes it is throwing... hard to tell......... too many factors can create that problems... HPFP, injectors...... __________________ -eric E90 335i TiAg STOCK see my garage for mod list.. E70 X5 SGM try to stay stock :/
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02-04-2010, 01:56 PM	#3
Comet Troll Harder 395 Rep 596 Posts Drives: 997 GT3, 997 4 GTS, X6M Join Date: May 2007 Location: Montreal, Beirut iTrader: (0) Garage List 2011 Porsche GT3 [8.00] 2012 Porsche 4 GTS [5.34]	thx for the reply is it safe to drive? or should I tow it to the dealer? (I don't have a scanner) __________________
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02-04-2010, 03:38 PM	#5
ibeclueless What 141 Rep 9,325 Posts Drives: E92 328xi Join Date: Mar 2009 Location: Quincy, MA iTrader: (1)	take it to the dealer and have them check it out __________________ E92 328xi Space Gray Aero Lip \| M3 Side Skirts \| CF Performance Spoiler \| ACS Roof \| Gloss Black Grilles \| LUX H8 Angels \| BMW Performance Exhaust My E92 Photos
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02-04-2010, 03:48 PM	#6
ImolaZHP Private 2 Rep 79 Posts Drives: E46 Imola ZHP coupe Join Date: May 2007 Location: NYC iTrader: (0)	That's the injector problem. I had it in the beginning of the Winter. You probably saw lots of white smoke came out from the exhaust also. The car shook like it was going to stall. "Engine Service" light came up too. This problem went away after a couple of restart. The problem came more and more often every morning until the day I got my appointment to bring the car to the dealership. Eventually it injectors on one bank of the cylinders where replaced. __________________ 2014 F25 35i M Sport 2010 E90 SG M Sport - ED -> recycled 2008 E92 AW ED -> Nurburgring -> PCD -> recycled 2005 E46 Imola ZHP -> back to BMW recycle bin
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02-04-2010, 04:43 PM	#7
Comet Troll Harder 395 Rep 596 Posts Drives: 997 GT3, 997 4 GTS, X6M Join Date: May 2007 Location: Montreal, Beirut iTrader: (0) Garage List 2011 Porsche GT3 [8.00] 2012 Porsche 4 GTS [5.34]	I used to see a lot of white smoke not this time though... I thought it was just normal due to my catless downpipes should I tow it or drive it there? __________________
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02-04-2010, 04:58 PM	#8
lawwailok Lieutenant Colonel 146 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]	last time, well about a month ago, ALL my injectors went bad, i couldn't drive it there, once i started the car, it bogged and struggling to calm down the idle... ended up i towed mine in using BMW assist, lucky i made it back home when it happened. __________________ -eric E90 335i TiAg STOCK see my garage for mod list.. E70 X5 SGM try to stay stock :/
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02-04-2010, 06:47 PM	#9
FoShizzle aka Mike 106 Rep 1,395 Posts Drives: AW E92 335is Join Date: Jun 2008 Location: LA/Ventura, CA iTrader: (11)	I vote injectors. Sounds like what happened to me. If you have bmw assist, just call em up and have them tow it.
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02-04-2010, 09:34 PM	#10
Comet Troll Harder 395 Rep 596 Posts Drives: 997 GT3, 997 4 GTS, X6M Join Date: May 2007 Location: Montreal, Beirut iTrader: (0) Garage List 2011 Porsche GT3 [8.00] 2012 Porsche 4 GTS [5.34]	I'll have it towed then thanks for the replies guys any idea how much this is going to set me back __________________
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