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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 10-03-2012, 01:46 AM
tim96 tim96 is offline
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Location: NZ
 
Join Date: Jul 2009
Posts: 246
Mein Auto: bmw e30 320i
pulsing (not surging) at idle?

the rev gauge stays constant , but sometimes when i start my e30 it feels like it's pulsing rather than a smooth idle, the exhaust sounds like it's pulsing , sometimes the car gets a shake to it as a result of the pulsing. My engine mounts are not broken.

other stuff which may or may not be related, the other week i suspected it is running rich due to strong exhaust smell, if I quickly open the throttle with my hand it will dip and nearly cut out before the revs increase.

I am thinking vacuum leak, engine temp gauge, fuel filter? I have a new air filter to put in it sometime soon. Any other ideas?
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  #2  
Old 10-03-2012, 01:55 AM
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Nick323 Nick323 is offline
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Location: Windhoek, Namibia, Africa
 
Join Date: Jun 2012
Posts: 731
Mein Auto: 323i E30 2-door
Idle control Valve needs some cleaning I'd say
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Old 10-03-2012, 10:17 AM
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Newman271 Newman271 is offline
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Location: Cincinnati, OH
 
Join Date: Apr 2012
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Mein Auto: 99' 540i M-Sport
Sounds like your running rich.. I'd say replace that engine coolant sensor.
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Old 10-03-2012, 10:34 AM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,368
Mein Auto: E23;E30;E38;E32;E34 +
Check/change spark plugs and leads. Sticky valve?
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Last edited by BMWFatherFigure; 10-05-2012 at 09:16 PM.
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