When my x trail starts, the revolutions are lowered

I need help, lately, when I start the Nissan X-Trail (gasoline) in cold, the revolutions are lowered and it is covered, if I keep the accelerator 1/2 minute to about 2000 rpm. It already remains at your revolutions and does not fail again until it is not cold again.

Someone could guide me on this subject.

Thanks anticipated

Eye checks the load of the battery and the alternator ...... That is a problem of low energy load ....

greetings

Injection Check the air flow sensor or hot ilo reveals to be failing greetings or the step by step. It is generally that

Check the minimal marching valve this dirty

Check the PCV valve, it is located on the lid of the Valcines and a hose to the Injection fuel, clean it with a carburetors or fate fighter with gasoline.