Problem: idle RPM not OK
09-17-2006, 10:10 AM
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My Ride: 2004 E60 Bi-Fuel
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Guys,
I have a 520 petrol, and my engine revs since this morning between 800rpm and 1100rpm, it alternates between these rpm. with a frequence of about 2 seconds.
Like 800 .....one second .....1100.....one second.....800
Yesterday the idle rpm's was around 600 rpm
Is there a problem with the lambda sensor? Does anyone had the same problem?
I like to try to solve it myself before I go to the dealer.
I have a 520 petrol, and my engine revs since this morning between 800rpm and 1100rpm, it alternates between these rpm. with a frequence of about 2 seconds.
Like 800 .....one second .....1100.....one second.....800
Yesterday the idle rpm's was around 600 rpm
Is there a problem with the lambda sensor? Does anyone had the same problem?
I like to try to solve it myself before I go to the dealer.
09-18-2006, 08:16 AM
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by 800 and 1100 rpm, i assume you mean below the 1 mark and just a bit above the 1 mark. On my car it always idle at about 1100 rpm as well, so i assume its normal. below that and the car will kind of vibrate like its about to choke and engine stall...
09-18-2006, 03:40 PM
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My Ride: E61 535d Apr 05. UK spec + Media Pack, Luxury Pack & Visibility Pack
Sounds more like Idle Control Valve/Sensor being a bit dirty. Part 8 in diagram below. Clean with brake cleaner or electrical component cleaner; should be an easy DIY job, but I don't know your specific engine that well.
http://www.realoem.com/bmw/showparts.do?mo...hg=11&fg=40
http://www.realoem.com/bmw/showparts.do?mo...hg=11&fg=40
09-20-2006, 10:33 AM
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My Ride: 2004 E60 Bi-Fuel
Business Navigation
Park distance control
Sunroof
extended airco with armrest
18" M5 rims with Runflats
xbox with 2 headrests LCD
front LCD video enabled
Detachable towbar
Alarm
anti-blind rearview mirror
Adaptive Xenon
Bluetooth carkit
Garage door opener integrated
Headlight cleaning system
Seat heating front
Thanks for the info....
Originally Posted by dlevi67' post='335926' date='Sep 18 2006, 06:40 PM
Sounds more like Idle Control Valve/Sensor being a bit dirty. Part 8 in diagram below. Clean with brake cleaner or electrical component cleaner; should be an easy DIY job, but I don't know your specific engine that well.
http://www.realoem.com/bmw/showparts.do?mo...hg=11&fg=40
http://www.realoem.com/bmw/showparts.do?mo...hg=11&fg=40
09-20-2006, 03:48 PM
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My Ride: E61 535d Apr 05. UK spec + Media Pack, Luxury Pack & Visibility Pack
Originally Posted by Justin' post='336714' date='Sep 20 2006, 07:33 PM
Thanks for the info....
If the car is definitely hunting (i.e. the revs DO go up and down), then look at the ICV/ICS. If it's just the needle shaking but the engine rpm are stable, I think it's the problem pointed at in the SIB above. Good opportunity to have the latest bugs - erm, I mean software - installed
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