FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
:
Car repair manuals for everyone.
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Oldsmobile
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1999
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Aurora V8-4.0L VIN C
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Repair and Diagnosis
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Maintenance
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Tune-up and Engine Performance Checks
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Ignition Timing
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Description and Operation
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Base Ignition Timing
Base Ignition Timing
The base
ignition timing
is determined by the relationship of the crankshaft position sensors to the reluctor ring. This relationship is not adjustable and results in a base ignition timing of
10°
BTDC.