| 26....Vacuum Switching Valve System |
| 27....Vacuum Switching Valve System
|
| 31....No Ignition Reference Pulses to ECM
(Carbureted), or Wastegate Control
|
| 32....EGR System |
| 33....MAP Sensor Circuit, or Fuel Injector
(1988-1991 Impulse, others with 2.6L Engine) |
| 34....MAP Sensor Circuit, or EGR Gas Sensor
Circuit (Carbureted, Stylus 1990-1992 Turbocharged Impulse), or Fuel Injector
(Impulse) |
| 35....Power Transistor System |
| 36....MAP Sensor Circuit |
| 41....Crank Angle Sensor, or Cam Signal (Stylus &
1990-1992 Turbocharged Impulse) |
| 42....Fuel Cut Off Relay (Carbureted), or
Electronic Spark Timing (Throttle Body Injection), or Ignition Control Circuit |
| 43....Electronic Spark Control, or Knock Sensor
(I-Mark, MPFI), or Throttle Valve Switch (1988-1991 Impulse, others with 2.6L
Engine) |
| 44....Oxygen Sensor Lean, or Fuel Metering
(1988-1991 Impulse, others with 2.6L Engine) |
| 45....Oxygen Sensor Rich, or Fuel Metering
(1988-1991 Impulse, others with 2.6L Engine) |
| 51....Fuel Cutoff Solenoid Circuit (Pickup,
Carbureted) or ECM (all models)
|
| 52....ECM (PROM, EEPROM, ROM, RAM, or ECM itself)
|
| 53....Vacuum Switching Valve and/or ECM |
| 54....M/C Solenoid Circuit and/or ECM (I-Mark,
Carbureted), or Vacuum Control Solenoid and/or ECM (Pickup, Carbureted), or
Power Transistor System, or Fuel Pump, Voltage Low (TBI and I-Mark, MPFI) |
| 55....ECM |
| 61....Air Flow Sensor |
| 62....Air Flow Sensor |
| 63....Vehicle Speed Sensor |
| 64....Fuel Injector |
| 66....Knock Sensor |
| 71....Throttle Position Sensor |
| 72....Vacuum Switching Valve Faulty EGR |
| 73....Vacuum Switching Valve Faulty EGR |
