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The BMW Range
3 Series
E36
E36 318i M44 engine
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<blockquote data-quote="Anandp" data-source="post: 48901" data-attributes="member: 647"><p>have change the MAF, Idle control valve and trottle switch. Idling problem seems to have stopped, but i'll only find out in the next few days as i drive the car.</p><p></p><p>Can anyone tell me what is the ideal CO level for a car. initially before changing the MAF, my CO was reading above 7%. after changing the MAF, the CO is hovering between 4-5%, according to the CO meter reading. </p><p></p><p>The mechanic mentioned that CO is supposed to be around the 1 to 2% level.</p><p></p><p>When he removed the O2 sensor, the tip of the sensor was black. By right it is supposed to be kind of brownish in colour. Hence the conclusion is, fuel is still burning rich. Have changed all sensors known to my knowledge.</p><p></p><p>Someone suggested removing all electronic contact points like the MAF connector and spraying contact cleaner solution.</p><p></p><p>Since the catalytic convertor has been taken out, could this lead to this problem.</p><p></p><p>Can anyone suggest what to do next, or who can help.</p><p></p><p>thanks</p></blockquote><p></p>
[QUOTE="Anandp, post: 48901, member: 647"] have change the MAF, Idle control valve and trottle switch. Idling problem seems to have stopped, but i'll only find out in the next few days as i drive the car. Can anyone tell me what is the ideal CO level for a car. initially before changing the MAF, my CO was reading above 7%. after changing the MAF, the CO is hovering between 4-5%, according to the CO meter reading. The mechanic mentioned that CO is supposed to be around the 1 to 2% level. When he removed the O2 sensor, the tip of the sensor was black. By right it is supposed to be kind of brownish in colour. Hence the conclusion is, fuel is still burning rich. Have changed all sensors known to my knowledge. Someone suggested removing all electronic contact points like the MAF connector and spraying contact cleaner solution. Since the catalytic convertor has been taken out, could this lead to this problem. Can anyone suggest what to do next, or who can help. thanks [/QUOTE]
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