Idle Speed

BASE ENGINE IDLE SPEED
850 ± 50 rpm

ISC DUTY AT SPECIFIED IDLE SPEED
35%

Idle/Duty Specification With A/C:

IMPORTANT SERVICE SPECIFICATION
Specified values for A/C ON idle speed vary depending on types of ECM. Refer to the above chart for ECM identification and idle speed specification. Types of ECM can be identified with last number of ECM P/N.
This specification requires the system be in open loop. Refer to ADJUSTMENT PROCEDURES for complete operation.

CLOSED LOOP A/C ENGINE IDLE SPEED
900 ± 50 rpm