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12-17-2016, 10:33 AM
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1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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On cold starts the computer only uses the intake and coolant temp sensors and MAF sensor to make fuel calculations. In addition to that, the cat isn't functioning until it gets hot. That's why it smells very rich in the winter.
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