OIL PRESSURE SENSOR

INSTALLATION INSTRUCTIONS

1. Get a Harley-Davidson oil pressure sender p/n 74406-87 from your local H-D dealer.

2. Determine if the new sensor will fit in place of the old oil idiot light sender. You might need a 1/8 NPT 45 degree adapter to allow the installation of the sensor on older models. EVOs can use the Harley-Davidson adapter p/n 26052-92A.

3. Remove the idiot light sender and replace it with the new sensor, plumbing as necessary for clearance. Do not use teflon tape to seal the threads. Sealing the threads can insulate the sensor from the engine and interrupt the electrical signal. Loctite liquid pipe sealant is OK to use.

4. Connect the idiot light wire to the new sensor terminal marked WK.

5. Connect the WhiTek supplied cable to the sensor terminal marked G.

6. Route the wire to the ECS MCU circuit card. The wire is long enough to be routed under the gas tank, down behind the manifold (left side of bike), in through the backing plate slots with the other system wires, and up the right side of the circuit card to the J2 connector.

7. Unplug the J2 receptacle from the J2 header (depress latch while pulling on receptacle). Avoid pulling on the wires in the receptacle. Pull only on the receptacle itself, to the extent possible. Un-plugging J2 and J6 receptacles together makes it easier to remove J2.

8. Poke the wire terminal into the J2-11 position in the receptacle. This is the third hole from the right (top side of card) end of the receptacle on the top (latch side). The pin numbers are indicated on the MCU circuit card and are also embossed on the face of the receptacle in small numerals. The terminal must be inserted with the crimp ears towards the top of the receptacle.

9. Tug lightly on the wire to insure that it is latched in the receptacle.

10. Plug the receptacle back into the header, making sure that the latch engages.

11. Cut the tie wrap that is just below J6, route the wire with the others there, and replace the tie wrap. Tie-wrap the wire to the other system wires between the cover and backing plates (next to the air filter). Tie wrap the wire in other places as required to keep it out of harms way.

12. If not already done, install the new PROM in the MCU board according to the PROM changing instructions.

13. In the Options submenu, access the OIL PRES. J2-11 command and push the middle button so that the bottom line reads INSTALLED.