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The BMW Range
3 Series
E46
P0178 / P0179 Fuel Composition Sensor Circuit Low / High Input Fault Code
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<blockquote data-quote="Herbert" data-source="post: 571504" data-attributes="member: 18029"><p>Since you will be replacing the O2 sensors, may as well check & clean the MAF sensor (with MAF cleaner). Unstable timing during cold start could well be a vanos seals problem.</p></blockquote><p></p>
[QUOTE="Herbert, post: 571504, member: 18029"] Since you will be replacing the O2 sensors, may as well check & clean the MAF sensor (with MAF cleaner). Unstable timing during cold start could well be a vanos seals problem. [/QUOTE]
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The BMW Range
3 Series
E46
P0178 / P0179 Fuel Composition Sensor Circuit Low / High Input Fault Code
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