Did the car finally start? Sometimes the fuel pressure regulator will leak fuel past the diaphram and into the intake manifold. This will create a hard start and produce a backfire (the popping noise you heard).
Pull the vacuum hose from the FPR and check/feel/smell for fuel. If there's any, replace it.
Also, is there any check engine lights on? If so, have the computer scanned.
Sunday, February 6th, 2011 AT 12:23 PM