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Idle Speed & Ignition Timing

Ensure idle speed and base ignition timing are set to specification. See the appropriate IDLE SPEED SPECIFICATIONS  and IGNITION TIMING SPECIFICATIONS  tables. If adjustment is necessary, see ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS

Application (1) M/T RPM (2) A/T RPM
B4000 (3) (3)
(1) Connect a jumper wire between terminals TEN and GND at data link connector. See Figure .
(2) Place automatic transmission in Park.
(3) Information is not available from manufacturer.
IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM)

Application M/T (1) A/T
B4000 8-12 @ Idle 8-12 @ Idle
(1) Place automatic transmission in Park.