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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


 
 
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Old Fri, Jun-22-2018, 09:16:42 PM   #1
Detailer
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Location: Montreal, Qc

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Default Idle-speed control valve, NC Winding

Hi guys,

I just purchased my dream car, an e46 M3!

Car has been sitting for the past 3 years in a garage and has only 28,000 miles.

Thing is, I'm having cold start issue with idle going up and down until it's hot. CEL is on an throwing a Idle-speed control valve, NC Winding. I replaced the ICV with a new one from the dealer, but still the same issue and rough cold idle.

It also seems like in first and second gear the throttle go from 1 to 10% only. It's like I'm in super sport mode all the time. I cannot more forward gently, the car always jump as if I would press hard on the gas pedal.

I don't have any other error codes.

Any idea with it could be?
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Discussing Idle-speed control valve, NC Winding in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)