...without using pressure gauge ? please help my car has been down for 4 months now taking it from one garage to the other all saying change the injector pump which i already had replaced.Now the engine light comes on just after starting the car and there wont be any revs,i have to use gears 1,2 and 3 only where i get revs above 2000rpm to avoid revs cutting---For How long PLEASE someone out there HELP ME my number is ( +27783113911 ) God bless you all