Sensor Identification Help.

Discuss the RB20, RB25 and RB26 series engines.
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ConnorJ19
Posts: 1
Joined: Thu Jun 11, 2026 7:29 pm
Car: 1978 Datsun 280Z

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We are working on swapping an RB25 S2 into our 280z. Wiring harness was received from Wiring Specialties. I’ve attached a picture of the connector from the wiring harness labeled for “oil PSI” and a picture of the sensor on the block. Connectors do not fit so I’m wondering if this sensor is a temp sensor or a different model pressure sensor.

Upon research it looks like the OEM pressure sensors would fit the connector on my harness.
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