Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1995 Acura Integra GS-R, 2D CoupeFACTORY OEM SERVICE PROCEDURE
PCM Input Signals
- Timing control and triggering of fuel injectors are based on input signals from TDC/CRANK/CYL sensors. These sensors are Permanent Magnet (PM) generator pick-up coils.
- Using a DVOM (preferably with bar-graph function) on low-volt scale, test each sensor for pulse voltage signal at indicated PCM harness terminals while engine is cranking. See PCM INPUT SIGNAL & RESISTANCE TEST TERMINALSΒ . If pulse signal is present, sensor is okay. If pulse signal is not present, go to next step.
- Turn ignition off. Unplug PCM connector. Inspect wiring harness and connectors. Measure resistance of each sensor at indicated PCM harness terminals. See PCM INPUT SIGNAL & RESISTANCE TEST TERMINALSΒ . If resistance is within specification, go to next step. If resistance is not within specification, go to step 5).PCM INPUT SIGNAL & RESISTANCE TEST TERMINALS
Application PCM Terminals (1) Ohms CRANK B15 & B16 350-700 Ohms CYL B11 & B12 350-700 Ohms TDC B13 & B14 350-700 Ohms (1) See Fig 1. - Test each terminal for continuity to ground. If continuity exists, unplug sensor connector, and again test appropriate PCM terminal for continuity to ground. If continuity still exists, repair short to ground in harness. If continuity does not exist, replace sensor.
- Unplug sensor connector. Measure resistance of sensor. See Fig 2, 11, or 12. If resistance is within specification, repair open, short, or poor connection in sensor harness between PCM and sensor. See PCM INPUT SIGNAL & RESISTANCE TEST TERMINALSΒ . If sensor resistance is not within specification, replace sensor assembly.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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