SAE SURFACE VEHICLE J2317TM MAR2021 INTERNATIONAL. RECOMMENDED PRACTICE Issued 1996-08 Reaffirmed 2021-03 Superseding J2317 SEP2015 Tamper Resistance for Adjustable Parameters on Diesel Fuel Injection Pumps RATIONALE SAE J2317 has been reaffirmed to ply with the SAE Five-Year Review policy. Foreword-Engine exhaust emission standards and test procedures enforced by various regulatory agencies has resulted in in-use emissions testing of certain vehicles or engines.Such testing has revealed that some diesel vehicles failing the smoke opacity test had adjustable parameters tampered with by the owner or an agent of the owner.To avoid non-pliance of an engine's exhaust emissions due to tampering there have been various regulations developed designed to assure that the adjustable parameters which affect exhaust emissions will remain in-use within the original equipment manufacturer's intended settings. It has been recognized that the impetus for developing designs that offer adequate tamper-resistance is with the manufacturer of the fuel injection pump (FIP).This SAE Remended Practice is developed by the standards mittee representing the interests of diesel fuel injection equipment (FIE)manufacturers engine manufacturers and the FIE service industry.The purpose of this document is to offer some design proposals which can be standardized in the FIE industry are cost effective and allow for servicing to be acplished with a minimum of obstruction.The design proposals con...
SAE J2317-2021 柴油燃油喷射泵可调参数的防篡改电阻.pdf
