Aerostar 2WD V6-182 3.0L (1995)
Code 181 - 190: Testing and Inspection
181
NOTE
KOEO refers to Key On Engine Off (KOEO)
KOER refers to Key On Engine Running (KOER)
DTC refers to Diagnostic Trouble Code (DTC)
DTCs should be diagnosed in the order they are received.
DTC 172
Lack of heated oxygen sensor switches indicates lean (bank # 1).
KOER Hard Code ....................................................................................................................................................................................... Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 173
Lack of heated oxygen sensor switches. Indicates rich (bank #1).
KOER Hard Code ....................................................................................................................................................................................... Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 174
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 175
Fuel system at adaptive limits, heated oxygen sensor unable to switch (bank #2).
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 176
Lack of heated oxygen sensor switches, indicates lean (bank #2).
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 177
Lack of heated oxygen sensor switches, indicates rich (bank #2).
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 178
KOEO Memory Code ................................................................................................................................................................................. Go to H1
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted
Engine Oil
DTC 179
Fuel system at lean adaptive limit at part throttle, system rich (bank #1).
