2004 Skidoo ZX Series Service Manual, Page 370Get this manual
Section 07 ENGINES MANAGEMENT (4-TEC) Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
Replacement
Disconnect MAPS connector and remove the MAPSInstall the new MAPS paying attention to index its tab into the adaptor notchApply Loctite 243 (blue) on screw then torque to Nm (53 lbfin)
If resistance values are incorrect, replace OPSIf the values are correct, check the continuity of the wiring harnessDisconnect the ECM connector DA from the ECM and check continuity of circuit 10
OIL PRESSURE SWITCH (OPS)
R1004motr150B
If wiring harness is good, try new ECMRefer to ECM REPLACEMENT procedures elsewhere in this sectionOtherwise, repair the connector or replace the wiring harness between ECM connector and OPS.R1004motr167A