int clockPin165 = 7;
int CEPin165 = 4 


void setup(){
  pinMode(clockPin165, OUTPUT);
  pinMode(CEPin165, OUTPUT);
  pinMode(clockInput165, OUTPUT);
  pinMode(dataIn, INPUT);
}

void loop() {

digitalWrite(clockPin165, LOW) ;
delayMicroseconds(5);
digitalWrite(clockPin165, HIGH) ;
delayMicroseconds(5);

// ********* ADD THIS LINE:
digitalWrite(clockInput165, HIGH); // This line should be here, before setting CEPin165 to LOW status.

digitalWrite(CEPin165, LOW);

// ********* REMOVE THIS LINE:
// digitalWrite(clockInput165, HIGH); // THIS LINE SHOULD BE REMOVED AND WRITTEN BEFORE SETTING CEPin165 TO LOW POSITION.

loQueMeLlega = shiftIn(dataPin165, clockInput165, MSBFIRST); // Save first byte.
loQueMeLlega2 = shiftIn(dataPin165, clockInput165, MSBFIRST); // Save second byte.

digitalWrite(CEPin165, HIGH); // Ready for another loop.

Serial.println("Value Byte 1: ");
Serial.print(loQueMeLlega, BIN);
Serial.println("Value Byte 2: ");
Serial.print(loQueMeLlega2, BIN);

delay(500);
}