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Starting at $68.95, AutoBuffy stocks 1 engine intake manifold runner control sensor connectors from Standard Ignition. This connector links the manifold runner control (IMRC) sensor to the ECU, transmitting butterfly valve position data that governs airflow and fuel trim. A damaged or corroded connector breaks that signal, triggering misfires, rough idle, and a check engine light that won't clear.
The main buying decision comes down to terminal count, wire gauge compatibility, and whether the connector includes a pre-wired pigtail or is a bare housing. Matching the exact terminal count and lock-tab style to the original connector is critical — an incorrect fit causes a poor seal and repeat failures. OE-style connectors with weather-resistant seals last significantly longer than generic equivalents in high-heat engine bay environments.
| Option | Best for | What you get |
|---|---|---|
| OE-match pigtail connector (pre-wired) | DIYers who want a plug-and-play repair with minimal soldering | Correct terminal count, matching wire colors, weatherproof seal, and 6–12 inches of pre-stripped wire ready to splice |
| Bare connector housing with terminals | Shops or experienced DIYers reusing existing wiring | Housing and loose terminals only — requires terminal crimping tools and knowledge of the original wire gauge |
| Connector repair kit (multi-piece) | Vehicles with corroded terminals AND damaged wiring | Includes housing, terminals, seals, and wire — covers the full connector assembly for a complete restoration |
| OEM dealer connector | Owners who require exact factory fitment and are less price-sensitive | Direct factory replacement with guaranteed fitment, but typically higher cost and longer lead time |
Begin by disconnecting the battery negative terminal, then locate the IMRC sensor on the intake manifold and depress the connector lock tab to unplug it. If using a pigtail connector, strip the existing wires and splice the new connector using heat-shrink butt connectors or solder and adhesive-lined heat shrink for a weatherproof join. Reconnect the battery, clear any stored fault codes with a scan tool, and verify the repair with a short test drive to confirm codes do not return.