FixVault

Low Maximum Speed And Poor Acceleration: Notes

LOW MAXIMUM SPEED AND POOR ACCELERATION DETECTION CONDITIONS AND POSSIBLE CAUSES (FW6A-EL)

TROUBLESHOOTING ITEM  Low maximum speed and poor acceleration 
DESCRIPTION 
  • Vehicle acceleration is poor at start.
  • Delayed acceleration when accelerator pedal is depressed while driving.
POSSIBLE CAUSE 
  • Engine control system malfunction
  • Signal malfunction
    • APP sensor malfunction
    • CKP sensor malfunction
    • MAF sensor malfunction
CAUTION:
  • Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.