N53 530i Extra torque when cold engine
01-06-2013, 06:14 AM
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N53 530i Extra torque when cold engine
What could cause that rarely (every 1 of 20 starts) car has more power (especially at 1000-4000rpm). It is quite noticeable difference. This happens mostly when weather is cold (below zero degrees) but not always. And this "power mode" last only 10-20mins. After engine is hot power is back to normal state. Lambda sensor could be one that comes in after engine is warm but how it could effect so much? What else could cause this?
01-06-2013, 07:22 AM
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My Ride: E60 530i LCI N53
During cold start, engine is programmed to run rich and ignition timing is optimised to suit hence te extra power felt.
I get the same feeling on all my cars, once hot engine it goes back to normal.
I get the same feeling on all my cars, once hot engine it goes back to normal.
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