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Home >> Cadillac >> 1995 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Diagnostic Parameters >> Pcm Override Codes >> PS10: Injector Flow

PS10: Injector Flow

PS10 may be used to fire each injector for a specific period of time thereby comparing injector flow. The following conditions must be met to allow override.

  1. Test conditions are transaxle in Park or Neutral, engine speed zero and vehicle speed zero. Fuel injector override will be suspended until conditions are met, override will then resume with injector No. 8. When PS10 is first selected, display will alternate between "--" for one second and "08" (No. 8 injector) for 5 seconds.
  2. Select PS10, press COOLER button on CCP to select injector to be tested. Press WARMER button on CCP to fire selected injector. Pressing COOLER button will select an injector and decrement injectors at a rate of one selection (next injector; No. 8 through No. 1). Pressing WARMER button fires the selected injector, display will then indicate "99". While PS10 is selected, each injector will only be fired once between engine runs to avoid flooding.