EMISSION APPLICATION

1988 Jeep Cherokee
1988 ENGINE EMISSIONS
Jeep Emission Control Applications
Cherokee, Comanche, Grand Wagoneer, Pickup,
Wagoneer, Wrangler
EMISSION CONTROL DEVICE APPLICATIONS
EMISSION CONTROL DEVICE APPLICATIONS TABLE

2.5L (150") 4-Cyl. TBI
PCV, EVAP, OC (3), EGR, SPK, CEC, O2
4.0L (242") 6-Cyl. MPFI
PCV, EVAP, AIS (2), DBC, EGR, SPK, CEC, O2, ACV, ASV
4.2L (258") 6-Cyl. 2-Bbl.
PCV, TAC, AIS, EVAP, DBC, EGR, SPK, CEC, O2, ACV, ASV,
EFE, EGR-CTO, EGR-TVS, MCU, SLV, VSA (1)
5.9L (360") V8 2-Bbl.
PCV, TAC, AIS, EVAP, DBC, EGR, SPK, ACV, DLV, EGR-CTO,
EGR-TVS, MCU (2), NLV, RDV, VA-CTO (2) (3), VSA (2)
(1) - Some Fed., all Calif.
(2) - Calif. only.
(3) - TWC on Calif.

ABBREVIATION DEFINITIONS
ABBREVIATIONS DEFINITIONS TABLE

Abbreviation Description
ACV ......................................... Air Control Valve
AIS ...................................... Air Injection System
ASV ....................................... Air Switching Valve
CEC ............................... Computerized Engine Control
DC-VLV ..................................... Deceleration Valve
DLV ............................................... Delay Valve
DVTRV .......................................... Diverter Valve
EGR ................................. Exhaust Gas Recirculation
EGR-CTO ...................... EGR Coolant Temperature Override
EGR-FDLV ............................... EGR Foward Delay Valve
EGR-TVS ............................. EGR Thermal Vacuum Switch
EST .................................. Electronic Spark Control
EVAP ................................... Evap. Emission Control
HDSP-CT ............... Heavy Duty Spark Coolant Temp. Override
HDVA-CTO ....... Heavy Duty Vac. Advance Coolant Temp. Override
MCU ....................................... Micro Computer Unit
MPS .................................. Manifold Pressure Sensor
NLRV .............................. Non-Linear Vacuum Regulator
OC ......................................... Oxidation Catalyst
O2 .............................................. Oxygen Sensor
PCV ............................ Positive Crankcase Ventilation
RDV ....................................... Reverse Delay Valve
S-CTO ............................ Spark Coolant Temp. Override
SLV ................................................... Solevac
SPK ..................................................... Spark
TAC .................................. Thermostatic Air Cleaner
TPS .................................. Throttle Position Sensor
TSD ......................................... Throttle Solenoid
TP ........................................ Throttle Positioner
TWC ........................................ Three-Way Catalyst
VA-CTO .................. Vacuum Advance Coolant Temp. Override
VSA .................................... Vacuum Switch Assembly
VTP ................................ Vacuum Throttle Positioner