Chapter 6 Emissions control systems
Contents
Catalytic converter ..................................... 5
Deceleration systems (carbureted models only) .............. 9
Evaporative emissions control system ...................... 3
Evaporative emissions system check ............. See Chapter 1
Exhaust Gas Recirculation (EGR) system ................... 7
Exhaust Gas Recirculation (EGR) system check .... See Chapter 1
Feedback carburetor (FBC) system ........................ 13
General information .................................... 1
Heated air intake system (carbureted models only) ............ 8
High altitude compensation system (carbureted models only) ... 10
Information sensors (fuel-injected models only) .............. 16
Jet air system (carbureted models only) .................... 4
Multi-Point Injection (MPI) system ......................... 14
Oxygen sensor replacement . . . . . . . . . . . . . . . . . . . . See Chapter 1
Positive Crankcase Ventilation (PCV) system . . . . . . . . . . . . . . . . 2
PCV system check . . . . . . . . . _ . . . . _ _ . . . . _ . . . . . _ _ See Chapter 1
Secondary Air Supply (SAS) system (carbureted
modelsonly) .._.........._....._...._............... 6
Secondary Air System (SAS) filter replacement
(2.6L engine) . . . . . . . . . . _ . . . . . _ . . . . _ _ . . . . _ . . See Chapter 1
Self-diagnosis and malfunction codes (fuel-injected
modelsonly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15
Thermostatic air cleaner check (carbureted
models only) . . . . . . . . . . . . . . . . . . . _ . _ . . . . . . . . . See Chapter 1
Throttle opener (carbureted models only) . . . . . . . . . . . . . . . . . . . 12
Vacuum delay valve (carbureted models only) . . . . . . . . . . . . . . . . 11
Specifications
Dashpot adjustment
Engine set speed
2.OLengine
2.6Lengine
....................................... .
........................................
Dashpotdroptime .....................................
Throttle position sensor
Output voltage
2.4Lengine ........................................
3.OLengine ........................................
Resistance (at closed throttle) ............................
EGR control solenoid valve resistance ..........
Engine coolant temperature sensor resistance
32-degrees F. .........................................
68-degrees F. .........................................
10Cdegrees F. ........................................
176-degrees F. ........................................
Motor position sensor resistance
(2.4L models) ....
Oxygen sensor output voltage
19902.4Lmodels .....................................
1991 and later 2.4L and all 3.OL models ....................
Purge control solenoid valve resistance ..
:
......
Torque specifications
EGRvalvebolts .......................................
EGR temperature sensor ................................
Engine coolant temperature sensor ........ _ ...............
2200 f 100 rpm
1700k 100 rpm
Three to six seconds
0.48 to 0.52 volts
0.4 to 1 .o volts
3.5 to 6.5 k-ohms
36 to 44 ohms
5.9 k-ohms
2’.5 k-ohms
1.1 k-ohms
0.3 k-ohms
4 to 6 k-ohms
1 volt
0.6 to 1 volt
36 to 44 ohms @ 68-degrees F
Ft-lbs
12to18
7.3 to 8.6
15to19
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