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Old 09-16-2015, 02:56 PM   #1
mstoochn
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15' BRZ M/T - Cold start misfire

Hello,

Since the recent weather change here in BC (Canada) I notice when I cold start my car after a night (under ground garage... 5*C -ish). Clutch in, start the car, after about 3 seconds I get 2 pops from the engine bay on the passenger side, rpms dip from 1500 to about 1200. After which the car runs and idles fine.

Should I be concerned? thoughts? suggestions?
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Old 09-16-2015, 03:04 PM   #2
Edibrac
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Its normal. It is the ECU putting more fuel in during combustion so that it continues into the exhaust and warms up the cats.
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Old 09-16-2015, 11:09 PM   #3
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pops during cold winter starts...my '13 has done that since new. Never during the summer.
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Old 09-17-2015, 01:13 AM   #4
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Quote:
Originally Posted by mstoochn View Post
Hello,

Since the recent weather change here in BC (Canada) I notice when I cold start my car after a night (under ground garage... 5*C -ish). Clutch in, start the car, after about 3 seconds I get 2 pops from the engine bay on the passenger side, rpms dip from 1500 to about 1200. After which the car runs and idles fine.

Should I be concerned? thoughts? suggestions?
It's just coughing ..... not to worry ......


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