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Emission Control Systems

EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 AMC          (2)    
232" 6-Cyl. 1-Bbl. x x x x x TCS, CTO(3), EGR(3), A.I.R.(4), TAC, BPS(5) x
258" 6-Cyl. 1-Bbl. x x x x x TCS, CTO(3), EGR(3), A.I.R.(4), TAC, BPS(5) x
304" V8 2-Bbl. x ... x x x TCS, CTO, EGR, A.I.R., TAC x
304" V8 2-Bbl. ... x x x x TCS, CTO, EGR, A.I.R, TAC, BPS(5) x
360" V8 2-Bbl. ... x x x x TCS, CTO, EGR, A.I.R., TAC, BPS(5) x
360" V8 4-Bbl. x ... x x x TCS, CTO, EGR, A.I.R., TAC, EAC x
360" V8 4-Bbl. ... x x x x TCS, CTO, EGR, A.I.R. TAC, EAC, BPS(5) x
401" V8 4-Bbl. x x. x x x CTO, EGR, A.I.R., TAC, EAC x
(1) TCS - Transmission Controlled Spark, CTO - Coolant Temperature Override, EGR - Exhaust Gas Recirculation, A.I.R. - Air Injection Reactor, TAC - Thermostatic Air Cleaner, EAC - Electric Assist Choke, BPS - Exhaust Back Pressure Sensor.
(2) Type 4 closed crankcase.
(3) "10" series only.
(4) "10" series station wagons only.
(5) Calif. only.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Buick          (2)    
250" 6-Cyl. 1-Bbl. x ... x x x EGR, A.I.R. x
250" 6-Cyl. 1-Bbl. ... x x ... x CCS, TAC, EGR x
250" 6-Cyl. 1-Bbl. ... x ... x x EGR, A.I.R. x
350" V8 2-Bbl. x ... x x x CCS, EGR(2), TCS, TAC, A.I.R. x
350" V8 2-Bbl. ... x x x x CCS, EGR(2), TAC, A.I.R. x
350" V8 4-Bbl. x ... x x x CCS, EGR(2), TCS, TAC, A.I.R. x
350" V8 4-Bbl. ... x x x x CCS, EGR(2), TAC, A.I.R. x
455" V8 2-Bbl. x ... x x x CCS, EGR, TCS, TAC, A.I.R. x
455" V8 2-Bbl. ... x x x x CCS, EGR, TAC, A.I.R. x
455" V8 4-Bbl. x ... x x x CCS, EGR, TCS, TAC, A.I.R. x
455" V8 4-Bbl. ... x x x x CCS, EGR, TCS(2), TAC, A.I.R. x
(1) CCS - Controlled Combustion System, EGR - Exhaust Gas Recirculation, TCS - Transmission Controlled Spark, TAC - Thermostatic Air Cleaner, A.I.R. - Air Injection Reactor.
(2) Type 4 closed crankcase.
(3) Dual diaphragm EGR valve on Calif. only.
(4) Stage 1 engines only.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Cadillac          (2)    
472" V8 4-Bbl. ... x x x x A.I.R., TAC, EGR, TVS x
500" V8 4-Bbl. ... x x x x A.I.R., TAC, EGR, TVS x
(1) A.I.R. - Air Injection Reactor, TAC - Thermostatic Air Cleaner, EGR - Exhaust Gas Recirculation, TVS - Thermal Vacuum Switch.
(2) Type 4 closed crankcase.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans, Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Chevrolet          (2)    
140" 4-Cyl. 1-Bbl. x ... x x x TAC, EGR, TCS x
140" 4-Cyl. 1-Bbl. ... x x x x TAC, EGR x
140" 4-Cyl. 2-Bbl. x ... x x x TAC, EGR, TCS x
140" 4-Cyl. 2-Bbl. ... x x x x TAC, EGR x
250" 6-Cyl. 1-Bbl. x ... x x x EGR, TCS, TAC, A.I.R. x
250" 6-Cyl. 1-Bbl. ... x x x x EGR, TAC, A.I.R. x
350" V8 2-Bbl. x ... x ... x EGR, TCS, TAC, A.I.R. x
350" V8 2-Bbl. ... x x ... x EGR, TAC, A.I.R. x
350" V8 4-Bbl. x ... x x x EGR, TCS, TAC, A.I.R. x
350" V8 4-Bbl. ... x x x x EGR, TAC, A.I.R. x
400" V8 2-Bbl. ... x x ... x EGR, TAC, A.I.R. x
400" V8 4-Bbl. ... x x x x EGR, TAC, A.I.R. x
454" V8 4-Bbl. x ... x x x EGR, TCS, TAC, A.I.R. x
454" V8 4-Bbl. ... x x x x EGR, TAC, A.I.R. x
(1) EGR - Exhaust Gas Recirculation, TCS - Transmission Controlled Spark, TAC - Thermostatic Air Cleaner, A.I.R. - Air injection Reactor.
(2) Type 4 closed crankcase.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans, Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Chrysler Corp.          (2)    
198" 6-Cyl. 1-Bbl. x x x x x EGR, TAC, EAC, OSAC x
225" 6-Cyl. 1-Bbl. x x x x x EGR, TAC, EAC, OSAC x
318" V8 2-Bbl. x x x x x EGR, TAC, EAC, OSAC, TIC(3) x
360" V8 2-Bbl. ... x x x x EGR, TAC, EAC, OSAC, TIC(3) x
360" V8 4-Bbl. x x x x x EGR, TAC, EAC, OSAC, TIC(3) x
400" V8 2-Bbl. ... x x x x EGR, TAC, EAC, OSAC, TIC(3) x
400" V8 4-Bbl. x x x x x EGR, TAC, EAC, OSAC, TIC(3) x
440" V8 4-Bbl. ... x x x x EGR, TAC, EAC, OSAC, TIC(3), A.I.R.(4) x
(1) EGR - Exhaust Gas Recirculation, TAC - Thermostatic Air Cleaner, EAC - Electric Assist Choke, OSAC - Orifice Spark Advance Control, TIC - Thermal Ignition Control Valve, A.I.R. - Air Injection Reactor.
(2) Type 4 closed crankcase.
(3) Max. Cooling and/or A/C.
(4) Calif. standard engines only.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Ford Motor Co.          (2)    
2000 cc 4-Cyl. 2-Bbl. x ... x ... x EGR, TAC, EAC, DV, A.I.R., SDV(7) x
2000 cc 4-Cyl. 2-Bbl. ... x x ... x EGR, TAC, EAC, DV, A.I.R. x
2300 cc 4-Cyl. 2-Bbl. x x x x x EGR, TAC, EAC, DV, A.I.R.(3), SDV x
2800 cc V6 2-Bbl. x x x x x EGR, TAC, EAC, DV, A.I.R., SDV x
200" 6-Cyl. 1-Bbl. x ... x x x EGR, TAC, EAC, A.I.R.(3) x
200" 6-Cyl. 1-Bbl. ... x x x x EGR, TAC, EAC, A.I.R.(3), SDV(5) x
250" 6-Cyl. 1-Bbl. x ... x x x EGR, TAC, EAC, A.I.R., SDV x
250" 6-Cyl. 1-Bbl. ... x x x x EGR, TAC, EAC, A.I.R., SDV, CTAV(4) x
302" V8 2-Bbl. x x x ... x EGR, TAC, EAC x
351" C V8 2-Bbl. ... x x x x EGR, TAC, EAC, A.I.R. x
351" W V8 2-Bbl. ... x x ... x EGR, TAC, EAC, SDV x
351" V8 4-Bbl. x x x ... x EGR, TAC, EAC x
400" V8 2-Bbl. ... x x x x EGR, TAC, EAC, A.I.R.(3), SDV(6) x
460" V8 4-Bbl. ... x x x x EGR, TAC, EAC, A.I.R.(3), SDV x
(1) EGR - Exhaust Gas Recirculation, TAC - Thermostatic Air Cleaner, EAC - Electric Assist Choke, DV - Decel Valve, A.I.R. - Air Injection Reactor, SDV - Spark Delay Valve, CATV - Cold Temperature Activated Vacuum System.
(2) Type 4 closed crankcase.
(3) Calif. only.
(4) Calibration 4-9, Revision R3 only.
(5) Calibration 4-7B, T and Revision R2, 11.
(6) Calibration 4-17T, Revision R13.
(7) Calibration 4-2A, Revision R0.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Jeep          (2)    
232" 6-Cyl. 1-Bbl. x ... x x x EGR, TAC, TCS, CTO x
258" 6-Cyl. 1-Bbl. x ... x ... x A.I.R.(3), EGR, TAC, TCS, CTO x
258" 6-Cyl. 1-Bbl. x ... ... x x EGR(4), TAC(4), TCS(4), CTO(4) x
258" 6-Cyl. 1-Bbl. ... x x ... x A.I.R., EGR, TAC, TCS, CTO x
304" V8 2-Bbl. x ... x ... x A.I.R., EGR, TAC, TCS, CTO x
304" V8 2-Bbl. ... x ... x x A.I.R., EGR, TAC, CTO, VTM x
360" V8 2-Bbl. x ... x ... x A.I.R., EGR, TAC, TCS(5), TVS, CTO, VTM(6) x
360" V8 2-Bbl. x ... ... x x A.I.R., EGR, TAC, TVS, CTO, VTM x
360" V8 2-Bbl. ... x x ... x A.I.R., EGR, TAC, TCS(5), TVS, CTO, VTM(6) x
360" V8 2-Bbl. ... x ... x x A.I.R., EGR, TAC, TVS, CTO, BPS,(5), VTM(6) x
360" V8 4-Bbl. ... x x x x A.I.R., EGR, TAC, TCS(7), TVS, CTO, EAC, BPS(9) x
401" V8 4-Bbl. x ... x x x A.I.R., EGR, TAC, CTO, VTM(6) x
401" V8 4-Bbl. ... x x x x A.I.R., EGR, TAC, CTO, EAC(8), VTM(6) (2)
(1) EGR - Exhaust Gas Recirculation, TAC - Thermostatic Air Cleaner, TCS - Transmission Controlled Spark, CTO - Coolant Temperature Override, A.I.R. - Air Injection Reactor, VTM - Vacuum Throttle Modulator, TVS - Thermal Vacuum Switch, EAC - Electric Assist Choke.
(2) Type 4 closed crankcase.
(3) Except CJ5/6.
(4) CJ5/6 only.
(5) Except truck "46" (Heavy Duty).
(6) Truck "46" (Heavy Duty) only.
(7) Except Federal Cherokee.
(8) Except Federal truck "46" (Heavy Duty).
(9) Calif. only.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Oldsmobile          (2)    
250" 6-Cyl 1-Bbl. x ... x x x TAC, TCS, CCS, A.I.R., EGR x
250" 6-Cyl. 1-Bbl. ... x x x x TAC, A.I.R., CCS, EGR(3) x
350" V8 2-Bbl. ... x x x x TAC. CCS, EGR, TVS x
350" V8 4-Bbl.(3) ... x x ... x TAC, CCS, EGR, TVS x
350" V8 4-Bbl.(3) ... x ... x x TAC, CCS, EGR, BPV, DW x
350" V8 4-Bbl.(4) ... x x ... x TAC, CCS, EGR, TVS x
455" V8 4-Bbl.(5) ... x x ... x TAC, CCS, EGR, TVS x
455" V8 4-Bbl.(5) ... x ... x x TAC, CCS, EGR, BPV, DW, TVS x
455" V8 4-Bbl.(6) ... x x ... x TAC, CCS, EGR, DW, TVS x
455" V8 4-Bbl.(6) ... x ... x x TAC, CCS, EGR, DW, BPV, TVS x
(1) A.I.R. - Air Injection Reactor, EGR - Exhaust Gas Recirculation, CCS - Controlled Combustion System, TVS - Thermal Vacuum Switch, PCV - Positive Crankcase Ventilation, DW - Distributor Vacuum Valve, BPV - Back Pressure Transducer Valve, TCS - Transmission Controlled Spark TAC - Thermostatic Air Cleaner.
(2) Calif. only.
(3) Except L-34 Station Wagon with Auto. Trans.
(4) L-34 Station Wagon with Auto. Trans.
(5) Except Toronado models.
(6) Toronado models.
(7) Type 4 closed crankcase.
EMISSION CONTROL SYSTEMS

Mfg. & Engine Man. Trans. Auto. Trans. Federal Calif. PCV Emission Systems & Devices (1) Fuel Evap.
1974 Pontiac          (2)    
250" 6-Cyl. 1-Bbl. x ... x x x TAC, EGR, CCS(3), TVS, TCS, A.I.R. x
250" 6-Cyl. 1-Bbl. ... x x x x TAC, EGR, CCS(4), TVS, A.I.R.(9) x
350" V8 2-Bbl. x ... x x x TAC, EGR, CCS(3), BPV(8), TVS, TCS, A.I.R. x
350" V8 2-Bbl. ... x x x x TAC, EGR, CCS(5), BPV(8), TVS, TCS, A.I.R.(9) x
350" V8 4-Bbl. x ... x (7) x TAC, EGR, CCS(3), TVS, TCS x
350" V8 4-Bbl. ... x x (7) x TAC, EGR, CCS(5), TVS, TCS x
400" V8 2-Bbl. ... x x x x TAC, EGR, CCS(5), VBV(6), BPV(8), TVS, TCS x
400" V8 4-Bbl. x ... x (7) x TAC, EGR, CCS(3), TVS, TCS x
400" V8 4-Bbl. ... x x (7) x TAC, EGR, CCS(5), TVS, TCS x
455" V8 4-Bbl. x ... ... (7) x TAC, EGR, CCS(3), TVS, TCS x
455" V8 4-Bbl. ... x x (7) x TAC, EGR, CCS(5), TVS, TCS x
(1) TAC - Thermostatically Controlled Air Cleaner, EGR - Exhaust Gas Recirculation, CCS - Controlled Combustion System, TCS - Transmission Controlled Spark, VBV - Vacuum Bias Valve, BPV - Back Pressure Transducer Valve, TVS - Thermal Vacuum Switch, A.I.R. - Air Injection Reactor.
(2) Type 4 closed crankcase.
(3) Uses TCS (ported advance).
(4) With ported vacuum advance.
(5) Uses TCS (non-ported advance).
(6) Used on Federal series "B" station wagons.
(7) Dual Diaphragm EGR valve (some models).
(8) All Calif.
(9) Calif. only.
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