The FS PMD, as designed and built by Flight Systems Electronic Group, has completed product validation testing and the results have been submitted to the General Motors Parts Organization. The specific tests selected from GM specification GMW3172 were decided upon after consultations between GM and FSEG. It was decided to do an A vs. B test of six FSEG and six Stanadyne PMDs. The PMDs would be subjected to various thermal shock and vibration tests at a qualified laboratory. The tests are designed to simulate the temperature and vibration environments a PMD would be subject to over 100,000 miles of use. It was decided that after the modules were subjected to these schedules, testing would be performed at FSEG to verify functionality. The testing at FSEG consisted of vehicle test, functional test and pump mounted test stand operational tests.

Results

All FS PMDs and Stanadyne PMDs passed the temperature and vibration testing. The 12 PMDs were then subject to six different electronic function tests. All FS PMDs passed the tests as well as the Stanadyne PMDs. Then, all PMDs were tested using a Hartridge AVM2-PC test stand and Stanadyne “Blue Box” tester. All FS and Stanadyne PMDs passed the OEM specified tests. Finally, on-vehicle testing was performed on all PMDs. Again, all of the FS and Stanadyne PMDs passed the tests with no engine starting/running problems and no fault codes were set.