Problems reading more than one PID

[xload]

I have this code to read an show some PIDs, I don't know why but only read the first (RPMs) the other values are 0 or the same as RPMs, can somebody help me? I think that all is correct.

Best regards

Code: Select all

#include <Arduino.h>
#include <Wire.h>
#include <SoftwareSerial.h>
#include <OBD.h>

SoftwareSerial mySerial(2, 3); // RX, TX

#define PID_ENGINE_FUEL_RATE 0x5E

//Global objets and variables
COBD obd;

int value0;
int value1;
int value2;
int value3;
int value4;
int value5;
int value6;
bool err;

void setup()
{
  //Wait 10 seconds for connect debug device
  delay(1000*10);
  mySerial.begin(9600);
  mySerial.println(F("OBD-II test"));
  mySerial.println(F("Copyright (C) 2015 Custodium soluciones y sistemas SL"));
  mySerial.println();
  
  // start communication with OBD-II UART adapter
  mySerial.println(F("obd.begin()"));
  obd.begin();
  // initiate OBD-II connection until success
  mySerial.println(F("Waiting while !obd.init()"));
  while (!obd.init());  
}

void loop()
{
  mySerial.println(F("Entering loop"));
  err=obd.read(PID_RPM, value0);
  /*
  if(!err) {
    mySerial.println(F("Error reading"));
  }
  */
  mySerial.print(F("RPM: "));
  mySerial.println(value0);
  delay(100);
  
  err=obd.read(PID_ENGINE_TORQUE_PERCENTAGE, value1);
  mySerial.print(F("ENGINE_TORQUE_PERCENTAGE: "));
  mySerial.println(value1);
  delay(100);
  
  err=obd.read(PID_ENGINE_REF_TORQUE, value2);
  mySerial.print(F("ENGINE_REF_TORQUE: "));
  mySerial.println(value2);
  delay(100);
  
  err=obd.read(PID_ENGINE_REF_TORQUE, value3);
  mySerial.print(F("ENGINE_REF_TORQUE: "));
  mySerial.println(value3);
  delay(100);
  
  err=obd.read(PID_MAF_FLOW, value4);
  mySerial.print(F("MAF_FLOW: "));
  mySerial.println(value4);
  delay(100);
  
  err=obd.read(PID_SPEED, value5);
  mySerial.print(F("SPEED: "));
  mySerial.println(value5);
  delay(100);
  
  err=obd.read(PID_ENGINE_FUEL_RATE, value6);
  mySerial.print(F("FUEL_RATE: "));
  mySerial.println(value6);
  delay(100);
  
  delay(1000*10);
  mySerial.println("Exiting loop");

}

[stanley]

It is likely other PIDs are not supported by your car.