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Matt
Matt, Engineer
Category: Australia Car
Satisfied Customers: 21867
Experience:  Automotive Engineer for 20 years, BEng hons degree,
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I own a 2009 camry 4 cyl and it runs ruff at cold start

Customer Question

Hi I own a 2009 camry 4 cyl and it runs ruff at cold start after sitting overnight
Submitted: 1 year ago.
Category: Australia Car
Expert:  Matt replied 1 year ago.
Hello this could be incorrect fuelling due to a faulty water temp sensor. If this is the problem then the ECU will never add the 'cold start' extra fuel required if the car starts OK when warm then I 'd look into changing the sensor. if this doesn't help I then replace the spark plug with new