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Service Data

Identifying Emission Control Service Data

Air fuel ratio compensation system  
Voltage A1A+ (E9-22) - E1 (E8-1) 3.3 V
A1A- (E9-30) - E1 (E8-1) 3.0 V
A2A+ (E8-23) - E1 (E8-1) 3.3 V
A2A- (E8-31) - E1 (E8-1) 3.0 V
Fuel cut off rpm Fuel cut off rpm 2,500 rpm
Fuel return rpm 1,200 rpm
Vapor pressure sensor assy  
Voltage VC (E10-18) - E2 (E10-28) 4.5 to 5.5 V
PTNK (E6 - 21) - E2 (E10-28) 3.0 to 3.6 V
Charcoal canister assy (VSV for CCV)  
Resistance 1 - 2 25 to 30 Ω at 20°C (68°F)
  32 to 40 Ω at 100°C(212°F)
Vacuum switching valve assy No. 1 (VSV for EVAP)  
Resistance 1 - 2 26 to 30Ω at 20°C(68°F)
Air fuel ratio sensor  
Resistance 1 (HT) - 2 (+B) 1.8 to 3.4Ω at 20°C(68°F)
Heated oxygen sensor  
Resistance 1 (HT) - 2 (+B) 11 to 16Ω at 20°C(68°F)
Air fuel ratio sensor heater relay  
Resistance 3 - 5 10 kΩ or higher
3 - 5 (Apply battery voltage to terminals 1 and 2) Below 1 Ω