Q: How do you remove the regulator or dampener from the fuel rail?
A: To disconnect the Fuel Rail regulator or dampener, begin by unplugging the cable from the negative terminal of the battery. Then, remove dirt from the regulator/dampener area so as to prevent contamination that may happen. After which, carefully take out the snap-ring holding down either the regulator or dampener on to the fuel rail. Cover all new O-rings with clean engine oil and install it in place before putting back on top of it a snap ring tightly. Put back again the cable on to negative battery pole before turning ignition switch to ON position without engaging starter then engage Fuel Pump for a few times until pressure is built up. For final step do this more than once while checking if there are any leakages of fuel.