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2.8 Breather pipes
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21st January 2021, 07:11 PM
MikkiJayne
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Join Date: Jan 2012
Posts: 5,017
Broken breather pipes will allow in unmetered air. That makes for poor cold running, and confuses the TCU which gets its load signal from the MAF, via the ECU.
Oil in the spark plug holes has a noticeable effect on cold idle too.
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