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HOMESERVICE MANUALSACURA19983.5RL SPECIAL EDITIONREPAIR AND DIAGNOSISENGINE PERFORMANCETHEORY AND OPERATIONENGINE CONTROLS - THEORY & OPERATIONCOMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULE (PCM)
1998 Acura 3.5RL Special Edition

Powertrain Control Module (Pcm)

1998 Acura 3.5RL Special EditionSECTION Powertrain Control Module (Pcm)

The PCM controls fuel injector timing and duration, idle speed, ignition timing, PCM back-up functions, and other functions. The PCM is located in front passenger footwell area. On all models except Integra, pull carpet back to expose PCM. On Integra, remove passenger side kick panel to expose PCM.

NOTE: Components are grouped into 2 categories. The first category is INPUT DEVICES, which are components that control or produce signals monitored and processed by the PCM. The second category is OUTPUT SIGNALS , which are components controlled by the PCM.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.