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The BMW Range
5 Series
E34
e34 idling not smooth!!!
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<blockquote data-quote="E34EuroTouring" data-source="post: 91772" data-attributes="member: 1026"><p>When your mechanic tried a different AFM, did he RESET the ECU by pulling the battery and connecting +ve to -ve terminals. Wait 10 mins then reconnect back. You need to drive the car HARD for more than 30 mins for the ECU to "learn" the variance of the AFM voltages.</p><p></p><p>Usually, the ECU adapts to voltage values very slowly. So replacing a BETTER afm without reseting the ECU will be *worse* as the adapted values are wrong in the first place. Yep, just like rebooting your Windows PC.</p></blockquote><p></p>
[QUOTE="E34EuroTouring, post: 91772, member: 1026"] When your mechanic tried a different AFM, did he RESET the ECU by pulling the battery and connecting +ve to -ve terminals. Wait 10 mins then reconnect back. You need to drive the car HARD for more than 30 mins for the ECU to "learn" the variance of the AFM voltages. Usually, the ECU adapts to voltage values very slowly. So replacing a BETTER afm without reseting the ECU will be *worse* as the adapted values are wrong in the first place. Yep, just like rebooting your Windows PC. [/QUOTE]
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e34 idling not smooth!!!
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