Fuel Injector
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2002 Mercury Sable, 2002 Mercury Mountaineer, 2002 Mercury Grand Marquis, 2002 Mercury Cougar, and 2002 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect fuel injector harness connectors. Using a DVOM, measure resistance between injector terminals. See Fig 1. If resistance of any injector is not as specified, replace injector. If injector resistance is within specification, injector is okay. For additional fuel injector testing and specifications, see TEST HD: MISFIRE DETECTION MONITOR under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article.