Evaporative emission system control diagram (EMISSION CONTROL - V8)

EMISSION CONTROL - V8

DESCRIPTION AND OPERATION

17-2-5

Evaporative emission system control 
diagram

1 Battery
2 Fuse 13 (engine compartment fusebox)
3 Inertia switch
4 Main relay (engine compartment fusebox)
5 Engine Control Module (ECM)
6 Purge Valve (black harness connector)
7 Canister vent solenoid (CVS) valve – NAS 

vehicles with vacuum type EVAP system leak 
detection capability only

8 Leak detection pump – NAS vehicles with 

positive pressure type EVAP system leak 
detection capability only

9 Fuel tank pressure sensor – NAS vehicles with 

vacuum type EVAP system leak detection 
capability only

10 Instrument pack (MIL warning light)

M17 0210

1

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5

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8

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