I have an issue with a 2005 Jetta GLI. This has happened once before and I thought it was a fuel pump issue, but it apparently was not. The fuel pump does not energize every time the ignition is cycled or the engine is cranking. I am only getting 1.7V at the fuel pump. The FP fuse is good. I have little or no voltage at the fuel pump relay. This condition can come and go. I have not had the issue for about a year, but today after re-connecting the battery (after doing a timing belt job) the pump wont energize. This seems to be a power issue to the relay. Has anyone had any similar issue? BTW, the fuel pump is only 1 year old with less than 10K miles on it and it can be powered by an external power source with no issue.