HIGH QUALITY MANUAL HAND SMOKE PUMP Battery&Fluid Free！！！ Solve the following pesky codes yourself without silly and annoying air compressor or fluids!!! Only cigar(0D:7.8mm)!!! P0171 - Fuel System Too Lean (Bank 1) P0174 - Fuel System Too Lean (Bank 2) P0440 - Evaporative Emission Control System Malfunction P0441 - Evaporative Emission Control System Incorrect Purge Flow P0442 - Evaporative Emission Control System Leak Detected 【Included:】 - 1 PP pump: 4.7"OD, high quality and has more stronger output smoke than the normal size which is less than 4" - 2 Billet Aluminum holes: Not cheap plastic but Billet Aluminum,and the input holes Anodized Blue & output hole Anodized Red.