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Throttle Position Switch > < Igniter <--> [Ignition Control Module]|Testing and Inspection
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Oil Pressure Sensor: Technical Service Bulletins
Engine - Oil Pressure Switch Changed

REFERENCE    ENGINE
NUMBER       026
DATE

09-07-90

MODEL      '

88-'90 AE, AT

TITLE

4A-F(E) OIL PRESSURE SWITCH

To improve the durability of the oil pressure switch, the material of the diaphragm shown below has been changed:
PRODUCTION EFFECTIVE:

From Production Date

Engine Numbers

March 30, 1990

4A-1912448
4A-4031015 4A-8133311

PART NUMBER INFORMATION:

PART NAME

PREVIOUS P/N

NEW P/N

OIL PRESSURE SWITCH ASSY

83530-30050

83530-30051

Throttle Position Switch > < Igniter <--> [Ignition Control Module]|Testing and Inspection