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Brief gas smell on cold start in freezing temp
Recently as temperature dip (around 19F), brief gas smell (less than 2 sec) in cabin occur when cold start after car sit for a day. no SES light or shadow codes under BT tool. What can cause this? leak of injectors, injector fuel lines, or valve cover gasket? What would happen if I ignore this and smell disappear when it gets warmer?
Also, does anyone know how to evaluate injectors functionality with BT tools? I wish there is a BT tool forum, if so please let me know.
Thanks in advance to anyone that can help on this matter.
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