The car starts but initially backfires after starting.
Troubleshooting car problems of engine backfires
When car backfires shortly after starting and usually occurs on wet condition, then this is a sign of problem of moisture inside the distributor cap. Moisture is the results of condensation from the air humidity, and interferes with the ignition system thereby causing the engine backfires shortly after starting.
However, if the car problem occurs even when the condition is not wet then this could be a problem of fuel injection system or one of the electronic sensors is faulty.
Possible cause of engine backfire at initial start
Moisture on distributor cap or faulty sensors
All about car Recommendation
How to fix engine backfire at starting
For a moisture on the distributor cap, there is nothing much to do. Just avoid parking your car on open space especially if you anticipate rain. As for the faulty fuel injection system, bring the car to reputable car shop and ask the mechanic to check the fuel injection. If the mechanic told you to replace fuel injection, do not agree unless you seek for a second opinion, usually this kind of problem is blame to sensors that is not working properly.