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Fuel Injector Leakage Test

WARNING: This page is about a different car, the 1994 Ford Probe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install Fuel Injector Tester/Cleaner (113-00001A). Clean injectors according to tester/cleaner manufacturer's instructions. After injectors are cleaned, check for fuel system pressure loss.
  2. Fuel injectors are side inject type and cannot be bench tested. Disconnect fuel rail from intake manifold, leaving fuel hoses connected. Using jumper wire, connect fuel pump terminal to ground terminal to activate fuel pump. See Figure . Turn ignition on for 10 seconds. Maximum injector leakage rate is one drop per 2 minutes. Replace injector if maximum leakage rate is exceeded.
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