rpms increasing and decreasing when in idle??

halkordy89 · 02-04-2011, 07:03 PM

so sometimes when i start up my car i notice my cars rpms going up to approx 1250rpm then back down to around 750rpms. my car does this repeated for about a minute and then stops. does anybody know what the problem is?? i wana get this fixed before my warranty goes out

thetryal · 02-04-2011, 07:26 PM

have you had it scanned. fuel pump is always possible with with rough idle.

Jred22 · 02-04-2011, 07:29 PM

HPFP bra

hipnotic · 02-04-2011, 07:46 PM

+1

halkordy89 · 02-04-2011, 07:49 PM

all bad. has it happened to you guys??

Jred22 · 02-04-2011, 07:53 PM

Hey, not big deal BRA! It has a warranty for the next 800k miles and 40 years.

scrufy · 02-04-2011, 08:02 PM

Could be a lot of things. Vacuum leak, injector, HPFP, bad gas, clogged filter, hell even a valve for that matter..either way, not an issue, it will be covered unless its a broke pin from your Procede or JB install..

halkordy89 · 02-04-2011, 11:32 PM

thats whats up thanks guys

TommyK · 02-05-2011, 12:37 AM

Quote:

Originally Posted by scrufy

Could be a lot of things. Vacuum leak, injector, HPFP, bad gas, clogged filter, hell even a valve for that matter..either way, not an issue, it will be covered unless its a broke pin from your Procede or JB install..

ya all those are possible and even the maf sensor to add another
GL

02-04-2011, 07:03 PM	#1
halkordy89 First Lieutenant 8 Rep 322 Posts Drives: '07 e90 335i Join Date: Dec 2009 Location: san jose, ca iTrader: (1)	rpms increasing and decreasing when in idle?? so sometimes when i start up my car i notice my cars rpms going up to approx 1250rpm then back down to around 750rpms. my car does this repeated for about a minute and then stops. does anybody know what the problem is?? i wana get this fixed before my warranty goes out
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02-04-2011, 07:26 PM	#2
thetryal 1 expensive toy 41 Rep 275 Posts Drives: 2016 340i Join Date: Jan 2009 Location: Charlotte, NC iTrader: (1)	have you had it scanned. fuel pump is always possible with with rough idle. __________________ 2016 F30 340i M-Sport
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02-04-2011, 07:29 PM	#3
Jred22 Meat Puppet 66 Rep 1,127 Posts Drives: '11 e90 M3 Competition Join Date: Dec 2008 Location: Minneapolis iTrader: (4) Garage List 2007 Jeep Grand Che ... [0.00]	HPFP bra
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02-04-2011, 07:46 PM	#4
hipnotic Major General 149 Rep 6,604 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	+1
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02-04-2011, 07:49 PM	#5
halkordy89 First Lieutenant 8 Rep 322 Posts Drives: '07 e90 335i Join Date: Dec 2009 Location: san jose, ca iTrader: (1)	all bad. has it happened to you guys??
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02-04-2011, 07:53 PM	#6
Jred22 Meat Puppet 66 Rep 1,127 Posts Drives: '11 e90 M3 Competition Join Date: Dec 2008 Location: Minneapolis iTrader: (4) Garage List 2007 Jeep Grand Che ... [0.00]	Hey, not big deal BRA! It has a warranty for the next 800k miles and 40 years.
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02-04-2011, 08:02 PM	#7
scrufy Zoom Zoom This 12 Rep 694 Posts Drives: The Short Bus Join Date: Jul 2010 Location: So. Cal. iTrader: (0)	Could be a lot of things. Vacuum leak, injector, HPFP, bad gas, clogged filter, hell even a valve for that matter..either way, not an issue, it will be covered unless its a broke pin from your Procede or JB install..
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02-04-2011, 11:32 PM	#8
halkordy89 First Lieutenant 8 Rep 322 Posts Drives: '07 e90 335i Join Date: Dec 2009 Location: san jose, ca iTrader: (1)	thats whats up thanks guys
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