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Oldsmobile Cutlass Ciera V6-231 38L Workshop Service and Repair Manuals

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Delay Valve Trapped Spark (DV-TS)|Page 647 > < Distributor Vacuum Modulator Valve (DVMV)|Page 642

Cutlass Ciera 38L V6 (1985) Distributor Vacuum Spark Delay Valve - Description and Operation

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Vacuum Spark Delay Valve: Description and Operation
Delay Valve Trapped Spark (DV-TS)

    The DV-TS is used to help control exhaust emissions by delaying vacuum advance during some acceleration modes and is located in the vacuum line
between the carburetor and the distributor advance unit.

Delay Valve Trapped Spark (DV-TS)|Page 647 > < Distributor Vacuum Modulator Valve (DVMV)|Page 642