 
 #define RX_PIN 0
 #define TX_PIN 1
+#define EN_PIN 2
 
 
 OBD9141 obd;

void setup(){
    Serial.begin(9600);
    delay(2000);

    obd.begin(Serial1, RX_PIN, TX_PIN);


    Serial.print("init_success:");
    Serial.println(init_success);

    //init_success = true;
    // Uncomment this line if you use the simulator to force the init to be
    // interpreted as successful. With an actual ECU; be sure that the init is 
    // succesful before trying to request PID's.

    if (init_success){
        bool res;
